{"id":44086,"date":"2023-01-26T22:10:45","date_gmt":"2023-08-20T17:19:24","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bb%8e%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f%e7%9a%84%e8%a7%92%e5%ba%a6%e6%9d%a5%e7%9c%8b%ef%bc%8cpython%e3%80%81java%e5%92%8cgolang%e4%b9%8b%e9%97%b4%e6%9c%89%e5%93%aa%e4%ba%9b%e4%b8%8d%e5%90%8c\/"},"modified":"2024-04-29T11:37:55","modified_gmt":"2024-04-29T03:37:55","slug":"%e4%bb%8e%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f%e7%9a%84%e8%a7%92%e5%ba%a6%e6%9d%a5%e7%9c%8b%ef%bc%8cpython%e3%80%81java%e5%92%8cgolang%e4%b9%8b%e9%97%b4%e6%9c%89%e5%93%aa%e4%ba%9b%e4%b8%8d%e5%90%8c","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e4%bb%8e%e7%b1%bb%e5%9e%8b%e7%b3%bb%e7%bb%9f%e7%9a%84%e8%a7%92%e5%ba%a6%e6%9d%a5%e7%9c%8b%ef%bc%8cpython%e3%80%81java%e5%92%8cgolang%e4%b9%8b%e9%97%b4%e6%9c%89%e5%93%aa%e4%ba%9b%e4%b8%8d%e5%90%8c\/","title":{"rendered":"\u4ece\u7c7b\u578b\u7cfb\u7edf\u7684\u89d2\u5ea6\u6765\u770b\uff0cPython\u3001Java\u548cGolang\u4e4b\u95f4\u6709\u54ea\u4e9b\u4e0d\u540c\u4e4b\u5904"},"content":{"rendered":"<h1>\u6700\u521d<\/h1>\n<h2>\u80cc\u666f<\/h2>\n<p>\u6211\u4e00\u76f4\u5728\u4f7f\u7528Python\uff0c\u4f46\u5728\u8f6c\u804c\u7684\u65b0\u5c97\u4f4d\u4e0a\uff0c\u4e3b\u8981\u4f7f\u7528Java\u548cGolang\u3002\u6211\u610f\u8bc6\u5230\u5728\u5f00\u53d1\u4e2d\u8981\u6ce8\u610fPython\u6240\u6ca1\u6709\u7684\u7279\u5b9a\u7c7b\u578b\u7684\u597d\u5904\uff0c\u4ee5\u53ca\u5bf9Java\u548cGolang\u7684\u63a5\u53e3\u5dee\u5f02\u5e76\u4e0d\u592a\u4e86\u89e3\uff0c\u6240\u4ee5\u6211\u8fdb\u884c\u4e86\u4e00\u4e9b\u8c03\u67e5\u3002<br \/>\n\u8fd9\u7bc7\u6587\u7ae0\u4ecb\u7ecd\u4e86Python\u3001Java\u548cGolang\u4e4b\u95f4\u7684\u5dee\u5f02\uff0c\u5e76\u5728\u6587\u7ae0\u672b\u5c3e\u660e\u786e\u6307\u51fa\u4e86Golang\u548cJava\u7684\u63a5\u53e3\u5dee\u5f02\uff0c\u5e76\u5c1d\u8bd5\u7528Python\u8fdb\u884c\u4e86\u91cd\u5199\u3002<\/p>\n<h2>\u76ee\u524d\uff0c\u6709\u4e00\u7c7b\u7279\u5b9a\u7684\u8bfb\u8005<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u52d5\u7684\u578b\u4ed8\u3051\u8a00\u8a9e\u3057\u304b\u4f7f\u3063\u305f\u3053\u3068\u306a\u3044\u4eba<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Java\u3068Golang\u306e\u9055\u3044\u304c\u306f\u3063\u304d\u308a\u5206\u304b\u3089\u306a\u3044\u4eba<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u578b\u3092\u610f\u8b58\u3057\u305f\u3053\u3068\u304c\u3042\u307e\u308a\u306a\u3044\u4eba<\/ul>\n<h2>\u7b80\u5355\u7684\u5b9e\u65bd<\/h2>\n<p>\u9996\u5148\uff0c\u5c1d\u8bd5\u7528Python\u3001Java\u548cGolang\u7f16\u5199\u4e00\u4e2a\u6700\u7b80\u5355\u7684\u7c7b\u3002\u4ece\u4e0b\u9762\u7684\u4f8b\u5b50\u53ef\u4ee5\u770b\u51fa\uff0c\u5373\u4f7f\u662f\u4e0d\u719f\u6089Python\u7684\u4eba\uff0c\u4e5f\u53ef\u4ee5\u8f7b\u677e\u7406\u89e3\uff0c\u56e0\u4e3a\u5b83\u975e\u5e38\u7b80\u5355\u3002<\/p>\n<details>\u5728Python\u4e2d\uff0c\u7b80\u5355\u7684\u7c7b\uff08python\uff09<br \/>\nclass Dog:<br \/>\ndef __init__(self, name):<br \/>\nself.name = name<\/p>\n<p>def bark(self):<br \/>\nreturn f&#8221;{self.name} : \u6c6a\u6c6a!&#8221;<\/p>\n<p>dog = Dog(&#8220;\u65fa\u8d22&#8221;)<br \/>\nprint(dog.bark()) # \u65fa\u8d22 : \u6c6a\u6c6a!<\/p>\n<\/details>\n<p>\u82e5\u4f7f\u7528Java\uff0c\u5219\u7ed3\u679c\u5982\u4e0b\u3002<\/p>\n<details>Java\u7684\u60c5\u51b5\u4e0b\uff0c\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u7c7b\uff08Java\uff09\u3002public class Dog {<br \/>\nprivate String name;<\/p>\n<p>public Dog(String name) {<br \/>\nthis.name = name;<br \/>\n}<\/p>\n<p>public String bark() {<br \/>\nreturn this.name + &#8221; : \u6c6a\u6c6a!&#8221;;<br \/>\n}<\/p>\n<p>public static void main(String[] args) {<br \/>\nDog dog = new Dog(&#8220;\u5c0f\u72d7&#8221;);<br \/>\nSystem.out.println(dog.bark()); \/\/ \u5c0f\u72d7 : \u6c6a\u6c6a!<br \/>\n}<br \/>\n}<\/p>\n<\/details>\n<p>\u4e0b\u4e00\u4e2a\u7528Golang\u7f16\u5199\u3002<\/p>\n<details>Golang\u7684\u60c5\u51b5\u4e0b\u7b80\u5355\u7684\u7c7b(golang)<br \/>\n\u5305 main<\/p>\n<p>\u5bfc\u5165 &#8220;fmt&#8221;<\/p>\n<p>type Dog struct {<br \/>\nname string<br \/>\n}<\/p>\n<p>func NewDog(name string) *Dog {<br \/>\nreturn &amp;Dog{name}<br \/>\n}<\/p>\n<p>func (d *Dog) Bark() string {<br \/>\nreturn d.name + &#8221; : \u6c6a\u6c6a\uff01&#8221;<br \/>\n}<\/p>\n<p>func main() {<br \/>\ndog := NewDog(&#8220;\u65fa\u8d22&#8221;)<br \/>\nfmt.Println(dog.Bark()) \/\/ \u65fa\u8d22 : \u6c6a\u6c6a\uff01<br \/>\n}<\/p>\n<\/details>\n<p>Python\u548cJava\u662f\u9762\u5411\u5bf9\u8c61\u7684\uff0c\u800cGolang\u5219\u4e0d\u662f\u4f20\u7edf\u7684\u9762\u5411\u5bf9\u8c61\uff0c\u56e0\u4e3a\u5b83\u6ca1\u6709\u7c7b\uff08class\uff09\u3002<\/p>\n<h1>\u7c7b\u578b\u7cfb\u7edf<\/h1>\n<p>\u6709\u51e0\u79cd\u65b9\u5f0f\u53ef\u4ee5\u5bf9\u7c7b\u578b\u7cfb\u7edf\u8fdb\u884c\u5206\u7c7b\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u52d5\u7684\u578b\u4ed8\u3051 vs. \u9759\u7684\u578b\u4ed8\u3051<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5f37\u3044\u578b\u4ed8\u3051 vs. \u5f31\u3044\u578b\u4ed8\u3051<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Structural Type System(\u69cb\u9020\u7684\u578b\u4ed8\u3051) vs. Nominal Type System (\u8a18\u540d\u7684\u578b\u4ed8\u3051)<\/ul>\n<p>\u9996\u5148\uff0c\u6211\u4eec\u5c06\u4ece\u6613\u4e8e\u7406\u89e3\u7684\u52a8\u6001\u7c7b\u578b\u548c\u9759\u6001\u7c7b\u578b\u5f00\u59cb\u89e3\u91ca\u3002<\/p>\n<h2>\u6ca1\u6709\u5f62\u6001\u7684\u8bed\u8a00<\/h2>\n<p>\u6a5f\u68b0\u8a9e\u548cShell\u8173\u672c\u4e26\u4e0d\u5177\u6709\u578b\u5225\u7684\u6982\u5ff5\u3002<\/p>\n<h2>\u52a8\u6001\u7c7b\u578b\u7684\u7f16\u7a0b\u8bed\u8a00<\/h2>\n<p>\u578b\u7684\u6982\u5ff5\u5728\u8bed\u8a00\u4e2d\u6709\uff0c\u4f46\u7c7b\u578b\u517c\u5bb9\u6027\u68c0\u67e5\u5728\u8fd0\u884c\u65f6\u8fdb\u884c\u3002<br \/>\n\u4f8b\u5982\uff1aRuby\u3001Python\u3001Perl\u3001JavaScript\u3001Lisp\u7b49\u3002<\/p>\n<h2>\u9759\u6001\u7c7b\u578b\u7f16\u7a0b\u8bed\u8a00<\/h2>\n<p>\u5728\u8bed\u8a00\u4e2d\uff0c\u5b58\u5728\u7740\u7c7b\u578b\u7684\u6982\u5ff5\uff0c\u5e76\u5728\u6267\u884c\u4e4b\u524d\u8fdb\u884c\u7c7b\u578b\u4e00\u81f4\u6027\u68c0\u67e5\u3002<\/p>\n<h3>\u578b\u6aa2\u67e5<\/h3>\n<p>\u9700\u8981\u660e\u786e\u5730\u63cf\u8ff0\u7c7b\u578b\uff0c\u5e76\u4e14\u4ec5\u9700\u8981\u8fdb\u884c\u7c7b\u578b\u517c\u5bb9\u6027\u68c0\u67e5\u7684\u8bed\u8a00\uff0c\u4f8b\u5982\uff1aC\u3001Java\u3002<\/p>\n<h3>\u7c7b\u578b\u63a8\u7406<\/h3>\n<p>\u4e0d\u9700\u8981\u660e\u786e\u5730\u63cf\u8ff0\u7c7b\u578b\uff08\u4e5f\u53ef\u4ee5\u4e0d\u63cf\u8ff0\uff09\uff0c\u800c\u662f\u9700\u8981\u5728\u63a8\u65ad\u7c7b\u578b\u7684\u540c\u65f6\u68c0\u67e5\u4e00\u81f4\u6027\u7684\u8bed\u8a00\u3002<br \/>\n\u4f8b\u5982\uff1aOCaml\u3001Haskell\u3001F#<\/p>\n<h1>\u7c7b\u578b\u5b89\u5168<\/h1>\n<p>\u5982\u679c\u7a0b\u5e8fP\u7684\u7c7b\u578b\u68c0\u67e5\u6210\u529f\uff0c\u5219\u79f0\u5176\u4e3a\u7c7b\u578b\u5b89\u5168\uff08\u4e5f\u79f0\u4e3a\u5f3a\u7c7b\u578b\uff09\uff0c\u5b83\u6ee1\u8db3\u5728P\u6267\u884c\u65f6\u4e0d\u4f1a\u53d1\u751f\u7531\u4e8e\u7c7b\u578b\u4e0d\u5339\u914d\u5f15\u8d77\u7684\u9519\u8bef\u3002<\/p>\n<h2>\u5f3a\u7c7b\u578b \u0261 \u0261 \u0261)<\/h2>\n<p>\u53ef\u4ee5\u68c0\u6d4b\u5230\u7c7b\u578b\u4e0d\u4e00\u81f4\u3002<\/p>\n<h3>\u52a8\u6001\u5f3a\u7c7b\u578b<\/h3>\n<p>Python\u548cRuby\u7b49<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">a<\/span> <span class=\"o\">=<\/span> <span class=\"sh\">\"<\/span><span class=\"s\">1<\/span><span class=\"sh\">\"<\/span>\r\n<span class=\"n\">b<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">5<\/span>\r\n<span class=\"n\">a<\/span><span class=\"o\">+<\/span><span class=\"n\">b<\/span> <span class=\"c1\"># \u30a8\u30e9\u30fc\r\n<\/span><\/code><\/pre>\n<h3>\u5f3a\u7c7b\u578b\u4e14\u9759\u6001<\/h3>\n<p>Golang\uff08Go\u8bed\u8a00\uff09\uff0cJava\u7b49<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">a<\/span> <span class=\"o\">:=<\/span> <span class=\"s\">\"1\"<\/span>\r\n\t<span class=\"n\">b<\/span> <span class=\"o\">:=<\/span> <span class=\"m\">5<\/span>\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">a<\/span> <span class=\"o\">+<\/span> <span class=\"n\">b<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ \u30a8\u30e9\u30fc<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u5f31\u7c7b\u578b<\/h2>\n<p>\u6709\u65f6\u65e0\u6cd5\u68c0\u6d4b\u5230\u7c7b\u578b\u4e0d\u5339\u914d\u3002<\/p>\n<h3>\u52a8\u6001\u4e14\u5f31\u7c7b\u578b<\/h3>\n<p>\u53ea\u9700\u4e00\u79cd\u9009\u62e9\uff0c\u4ee5\u4e0b\u662f\u5bf9\u6b64\u8fdb\u884c\u672c\u5730\u5316\u7684\u4e2d\u6587\u91ca\u4e49\uff1a<br \/>\nPHP\u3001JavaScript\u7b49<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">var<\/span> <span class=\"nx\">x<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span>\r\n<span class=\"kd\">var<\/span> <span class=\"nx\">y<\/span> <span class=\"o\">=<\/span> <span class=\"dl\">'<\/span><span class=\"s1\">9<\/span><span class=\"dl\">'<\/span>\r\n<span class=\"nx\">x<\/span> <span class=\"o\">+<\/span> <span class=\"nx\">y<\/span> <span class=\"c1\">\/\/ '19'<\/span>\r\n<\/code><\/pre>\n<h3>\u5f3a\u7c7b\u578b\u5316\u7684\u3001\u9759\u6001\u7684<\/h3>\n<p>C\u548cC++\u7b49<\/p>\n<pre class=\"post-pre\"><code><span class=\"cp\">#include<\/span> <span class=\"cpf\">&lt;stdio.h&gt;<\/span>\r\n<span class=\"kt\">int<\/span> <span class=\"nf\">main<\/span><span class=\"p\">(<\/span><span class=\"kt\">void<\/span><span class=\"p\">){<\/span>\r\n    <span class=\"kt\">int<\/span> <span class=\"n\">num<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">1<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"kt\">char<\/span> <span class=\"n\">chr<\/span> <span class=\"o\">=<\/span> <span class=\"sc\">'a'<\/span><span class=\"p\">;<\/span>\r\n    <span class=\"n\">printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%d\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">num<\/span> <span class=\"o\">+<\/span> <span class=\"n\">chr<\/span><span class=\"p\">);<\/span> <span class=\"c1\">\/\/98<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u9e2d\u5b50\u6253\u5b57<\/h1>\n<p>\u9e2d\u5b50\u7c7b\u578b\u662f\u52a8\u6001\u7c7b\u578b\u8bed\u8a00\u4e2d\u5e38\u7528\u7684\u7c7b\u578b\u5212\u5206\u65b9\u5f0f\uff0c\u5e38\u88ab\u5e94\u7528\u4e8eRuby\u548cPython\u7b49\u8bed\u8a00\u4e2d\u3002<\/p>\n<blockquote><p>\u5982\u679c\u5b83\u8d70\u8d77\u6765\u50cf\u9e2d\u5b50\uff0c\u53eb\u8d77\u6765\u4e5f\u50cf\u9e2d\u5b50\uff0c\u90a3\u5b83\u4e00\u5b9a\u662f\u9e2d\u5b50\u3002 &#8211; Dave Thomas<\/p><\/blockquote>\n<p>\u5c1d\u8bd5\u5728Python\u4e2d\u5b9e\u8df5\u9e2d\u5b50\u7c7b\u578b\u3002<\/p>\n<div>\n<div class=\"post-table\">\u767b\u5834\u4eba\u7269\u8aac\u660eDog\u5420\u3048\u308b\u72acBard\u5420\u3048\u306a\u3044\u9ce5Robot\u5420\u3048\u308b\u30ed\u30dc\u30c3\u30c8<\/div>\n<\/div>\n<pre class=\"post-pre\"><code><span class=\"k\">class<\/span> <span class=\"nc\">Dog<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">Bark<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"<\/span><span class=\"s\">Bow wow?<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">Bird<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">sing<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"<\/span><span class=\"s\">Chun chun?<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">Robot<\/span><span class=\"p\">:<\/span>\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">Bark<\/span><span class=\"p\">(<\/span><span class=\"n\">self<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"<\/span><span class=\"s\">Woooo?<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">def<\/span> <span class=\"nf\">roll_call<\/span><span class=\"p\">(<\/span><span class=\"n\">animal<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"nf\">hasattr<\/span><span class=\"p\">(<\/span><span class=\"n\">animal<\/span><span class=\"p\">,<\/span> <span class=\"sh\">'<\/span><span class=\"s\">Bark<\/span><span class=\"sh\">'<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"n\">animal<\/span><span class=\"p\">.<\/span><span class=\"nc\">Bark<\/span><span class=\"p\">()<\/span>\r\n    <span class=\"k\">else<\/span><span class=\"p\">:<\/span>\r\n        <span class=\"nf\">print<\/span><span class=\"p\">(<\/span><span class=\"sh\">\"<\/span><span class=\"s\">This is not animal.\u274c<\/span><span class=\"sh\">\"<\/span><span class=\"p\">)<\/span>\r\n\r\n\r\n<span class=\"n\">dog<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Dog<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">bird<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Bird<\/span><span class=\"p\">()<\/span>\r\n<span class=\"n\">robot<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">Robot<\/span><span class=\"p\">()<\/span>\r\n\r\n<span class=\"nf\">roll_call<\/span><span class=\"p\">(<\/span><span class=\"n\">dog<\/span><span class=\"p\">)<\/span> <span class=\"c1\"># Bow wow?\r\n<\/span><span class=\"nf\">roll_call<\/span><span class=\"p\">(<\/span><span class=\"n\">bird<\/span><span class=\"p\">)<\/span> <span class=\"c1\"># This is not animal.\u274c\r\n<\/span><span class=\"nf\">roll_call<\/span><span class=\"p\">(<\/span><span class=\"n\">robot<\/span><span class=\"p\">)<\/span> <span class=\"c1\"># Woooo?\r\n<\/span><\/code><\/pre>\n<p>\u56e0\u4e3a\u9e1f\u6ca1\u6709Bark()\u65b9\u6cd5\uff0c\u6240\u4ee5\u88ab\u5224\u65ad\u4e3a\u4e0d\u662f\u52a8\u7269\uff0c\u7136\u800c\u9664\u6b64\u4e4b\u5916\uff0c\u5b83\u88ab\u89c6\u4e3a\u4e00\u79cd\u52a8\u7269\u3002<\/p>\n<h2>\u597d\u5904<\/h2>\n<p>\u5f53\u4f7f\u7528\u9e2d\u5b50\u7c7b\u578b\u65f6\uff0c\u53ea\u9700\u8981\u5177\u5907\u8c03\u7528\u65b9\u6cd5\uff0c\u8c03\u7528\u65b9\u4e0d\u9700\u8981\u4e86\u89e3\u7c7b\u578b\u7b49\u524d\u63d0\u77e5\u8bc6\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u67d4\u8edf\u6027\u30fb\u62e1\u5f35\u6027\u304c\u9ad8\u304f\u306a\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u4f9d\u5b58\u304c\u5c11\u306a\u304f\u306a\u308b<\/ul>\n<h2>\u7f3a\u70b9\u3002<\/h2>\n<p>\u65e0\u8bba\u5728\u4f55\u79cd\u60c5\u51b5\u4e0b\uff0c\u90fd\u5b58\u5728\u7740\u6743\u8861\u5229\u5f0a\u7684\u60c5\u51b5\u3002\u5728\u9e2d\u5b50\u7c7b\u578b\u4e2d\uff0c\u6709\u53ef\u80fd\u65e0\u610f\u4e2d\u5c06\u5177\u6709\u610f\u5916\u7c7b\u578b\u7684\u7279\u5b9a\u51fd\u6570\u4f20\u5165\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5b58\u5728\u5982\u4e0b\u7684\u4e0d\u5229\u4e4b\u5904\u3002<\/p>\n<ul class=\"post-ul\">\u578b\u306e\u6574\u5408\u6027\u306b\u3088\u308b\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u3084\u3059\u304f\u306a\u308a\u3001\u5371\u967a\u6027\u304c\u4f34\u3046<\/ul>\n<h1>\u540d\u4e49\u7c7b\u578b\u7cfb\u7edf<\/h1>\n<p>\u4f8b\u5982 C# \u548c Java\uff0c\u90fd\u662f\u50cf Java \u4e00\u6837\uff0c\u91cd\u89c6\u547d\u540d\uff0c\u5e76\u5c06\u90e8\u5206\u7c7b\u578b\u5173\u7cfb\u660e\u786e\u58f0\u660e\u7684\u7c7b\u578b\u7cfb\u7edf\u3002<\/p>\n<p>\u5728Java\u4e2d\uff0c\u65e0\u6cd5\u58f0\u660e\u7c7b\u4f3c {fst: Nat, snd: Nat} \u8fd9\u6837\u6ca1\u6709\u540d\u79f0\u7684\u7c7b\u578b\u3002<br \/>\n\u5728\u58f0\u660e\u5c40\u90e8\u53d8\u91cf\u3001\u5b57\u6bb5\u548c\u65b9\u6cd5\u7684\u53c2\u6570\u65f6\uff0c\u5fc5\u987b\u8981\u6709\u540d\u79f0\u3002<\/p>\n<h2>\u4f18\u52bf<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u518d\u5e30\u578b\u306e\u53d6\u308a\u6271\u3044\u304c\u7c21\u5358<\/ul>\n<\/li>\n<\/ul>\n<p>\u5024\u306e\u578b\u304c\u305d\u308c\u305e\u308c\u540d\u524d\u3067\u4fdd\u5b58\u3055\u308c\u308b\u3060\u3051<br \/>\n\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u3084\u30de\u30fc\u30b7\u30e3\u30ea\u30f3\u30b0\u3001\u753b\u9762\u51fa\u529b\u306a\u3069\u3067\u6d3b\u7528\u3067\u304d\u308b(structural\u306a\u578b\u30b7\u30b9\u30c6\u30e0\u3067\u3082\u3001\u5024\u306b\u578b\u3092\u793a\u3059\u30bf\u30b0\u3092\u57cb\u3081\u8fbc\u3081\u3070\u3044\u3044\u308f\u3051\u3060\u304c\u3001\u3042\u307e\u308a\u6d3b\u7528\u3055\u308c\u3066\u3044\u306a\u3044\u3002)<\/p>\n<p>\u578b\u691c\u67fb\u5f8c\u3082\u3001\u7279\u306b\u5b9f\u884c\u6642\u306b\u578b\u60c5\u5831\u3092\u6d3b\u7528\u3067\u304d\u308b<br \/>\n\u578b\u691c\u67fb\u3001\u7279\u306bsubtyping\u306e\u691c\u67fb\u304c\u81ea\u660e\u306a\u307e\u3067\u306b\u7c21\u5358<br \/>\n\u660e\u793a\u7684\u306bsubtyping\u3092\u5ba3\u8a00\u3059\u308b\u305f\u3081\u3001\u8aa4\u308a\u304c\u751f\u3058\u306b\u304f\u3044<br \/>\n\u300c\u507d\u306e\u5305\u6442\u95a2\u4fc2\u300d\u3092\u9632\u6b62\u3067\u304d\u308b<\/p>\n<p>(\u3042\u308b\u578b\u306e\u5024\u3092\u305d\u306e\u578b\u3068\u306f\u5b8c\u5168\u306b\u5225\u3060\u304c\u3001\u69cb\u9020\u7684\u306b\u306f\u4e92\u63db\u304c\u3042\u308b\u578b\u304c\u671f\u5f85\u3055\u308c\u3066\u3044\u308b\u5834\u6240\u306b\u7528\u3044\u308b\u3088\u3046\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u578b\u691c\u67fb\u6a5f\u304c\u62d2\u7d76\u3057\u640d\u306d\u308b\u3068\u3044\u3046\u554f\u984c)\u3092\u9632\u6b62\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002(\u305f\u3060\u3057\u3001\u5358\u4e00\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u30c7\u30fc\u30bf\u578b\u3084\u62bd\u8c61\u578b\u306a\u3069\u3082\u3063\u3068\u3044\u3044\u65b9\u6cd5\u304c\u3042\u308b)<\/p>\n<h2>\u7f3a\u9ede<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u540d\u524d\u7684\u578b\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u578b\u540d\u3068\u305d\u306e\u5b9a\u7fa9\u306b\u3064\u3044\u3066\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u5e38\u306b\u6271\u3046\u5fc5\u8981\u304c\u3042\u308a\u3001\u305d\u306e\u305b\u3044\u3067\u5b9a\u7fa9\u3082\u8a3c\u660e\u3082\u3088\u308a\u5197\u9577\u3068\u306a\u3063\u3066\u3057\u307e\u3044\u304c\u3061<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7814\u7a76\u3067\u306fStructural Subtyping\u306e\u65b9\u304c\u4eba\u6c17<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u767a\u5c55\u7684\u306a\u6a5f\u80fd(\u30d1\u30e9\u30e1\u30fc\u30bf\u591a\u76f8)\u3001\u62bd\u8c61\u30c7\u30fc\u30bf\u578b\u3001\u30e6\u30fc\u30b6\u5b9a\u7fa9\u306e\u578b\u6f14\u7b97\u5b50\u3001\u30d5\u30a1\u30f3\u30af\u30bf\u306a\u3069\u306e\u578b\u62bd\u8c61\u306b\u95a2\u3059\u308b\u5f37\u529b\u306a\u4ed5\u7d44\u307f)\u306f\u3001\u540d\u524d\u7684\u578b\u30b7\u30b9\u30c6\u30e0\u3068\u76f8\u6027\u304c\u60aa\u3044(List(T)\u306e\u3088\u3046\u306a\u578b\u306f\u8907\u5408\u7684\u306a\u578b\u3067\u3042\u308a\u3001\u539f\u59cb\u7684\u306a\u540d\u524d\u3068\u3057\u3066\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u306a\u3044\u3002List(T)\u306e\u6319\u52d5\u3092\u898b\u308b\u306b\u306f\u3001List\u306e\u5b9a\u7fa9\u3092\u53c2\u7167\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b)<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u30b3\u30fc\u30c9\u304c\u5197\u9577\u306b\u306a\u308a\u3084\u3059\u3044<\/ul>\n<h2>\u540d\u4e49\u7c7b\u578b\u5212\u5206<\/h2>\n<p>\u5982\u679c\u540d\u5b57\u76f8\u540c\uff0c\u90a3\u4e48 Nominal Typing \u5c31\u662f\u4e00\u79cd\u5177\u5907\u4e92\u6362\u6027\u7684\u7c7b\u578b\u673a\u5236\u3002<\/p>\n<h2>\u540d\u4e49\u5b50\u7c7b\u578b<\/h2>\n<h3>Subtype\u7684\u610f\u601d\u662f<\/h3>\n<p>Subtype\u662f\u6307\u90e8\u5206\u7c7b\u578b\u3002\u90e8\u5206\u7c7b\u578b\u6307\u7684\u662fis-a\u5173\u7cfb\u4e2d\u7684\u5143\u7d20\u3002\u7c7b\u7684\u7ee7\u627f\u4e0e\u9762\u5411\u5bf9\u8c61\u6709\u76f8\u4f3c\u4e4b\u5904\u3002Subtype\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u5177\u6709\u53ef\u66ff\u6362\u6027\u3002\u4e5f\u5c31\u662f\u8bf4\uff0c\u6ee1\u8db3\u91cc\u6c0f\u66ff\u6362\u539f\u5219\u3002<\/p>\n<blockquote><p>\u8bbe \u03c6(x) \u662f\u5173\u4e8e\u7c7b\u578b\u4e3a T \u7684\u5bf9\u8c61 x \u53ef\u8bc1\u660e\u7684\u6027\u8d28\u3002\u90a3\u4e48\uff0c\u5bf9\u4e8e\u7c7b\u578b T \u7684\u5b50\u7c7b\u578b S \u7684\u5bf9\u8c61 y\uff0c\u03c6(y) \u5fc5\u987b\u4e3a\u771f\u3002B. Liskov \u548c J. Wing\uff0c\u300a\u5173\u4e8e\u5b50\u7c7b\u578b\u7684\u884c\u4e3a\u89c2\u5ff5\u300b<\/p><\/blockquote>\n<p>\u518d\u7528\u66f4\u7b80\u5355\u6613\u61c2\u7684\u65b9\u5f0f\u6765\u8868\u8fbe\u5c31\u662f<\/p>\n<blockquote><p>\u300c\u5b50\u7c7b\u578b\u300d\u7684\u5bf9\u8c61\u662f\u5177\u6709\u53e6\u4e00\u79cd\u7c7b\u578b\uff08&#8221;\u8d85\u7c7b\u578b&#8221;\uff09\u5bf9\u8c61\u7684\u6240\u6709\u884c\u4e3a\u4ee5\u53ca\u989d\u5916\u529f\u80fd\u7684\u5bf9\u8c61\u3002\u5728\u8fd9\u91cc\u9700\u8981\u7684\u662f\u4ee5\u4e0b\u6240\u793a\u66ff\u4ee3\u6027\u8d28\u7684\u4e1c\u897f\uff1a\u5bf9\u4e8e\u7c7b\u578bS\u7684\u6bcf\u4e2a\u5bf9\u8c61o1\uff0c\u5b58\u5728\u7c7b\u578bT\u7684\u5bf9\u8c61o2\uff0c\u5982\u679c\u5bf9\u4e8eT\u5b9a\u4e49\u7684\u6240\u6709\u7a0b\u5e8fP\uff0c\u5728\u5c06o1\u66ff\u6362\u4e3ao2\u65f6\u4e0d\u4f1a\u6539\u53d8\u5176\u884c\u4e3a\uff0c\u5219S\u662fT\u7684\u5b50\u7c7b\u578b\u3002B. Liskov\uff0c\u300a\u6570\u636e\u62bd\u8c61\u548c\u5c42\u6b21\u7ed3\u6784\u300b\uff0cLiskov 1988\uff0c\u7b2c25\u9875\uff0c3.3. \u7c7b\u578b\u5c42\u6b21\u7ed3\u6784\u3002<\/p><\/blockquote>\n<p>\u5177\u4f53\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5c31\u50cf\u4ee5\u4e0b\u7684Java\u4f8b\u5b50\u4e00\u6837\uff0c\u5f53int &lt;: double\uff08int\u578b\u662fdouble\u578b\u7684\u5b50\u7c7b\u578b\uff09\u65f6\uff0c\u5c06int\u578b\u5bf9\u8c61T\u8f6c\u6362\u4e3adouble\u578b\u4e0d\u4f1a\u6709\u4efb\u4f55\u95ee\u9898\uff0c\u4f46\u5c06double\u578b\u89c6\u4e3aint\u578b\u662f\u6709\u98ce\u9669\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Main<\/span> <span class=\"o\">{<\/span>\r\n\t<span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">args<\/span><span class=\"o\">[])<\/span> <span class=\"o\">{<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">x<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">100<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">double<\/span> <span class=\"n\">y<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"n\">y<\/span> <span class=\"o\">=<\/span> <span class=\"n\">x<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">y<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ 100.0<\/span>\r\n\t\t\r\n\t\t<span class=\"kt\">double<\/span> <span class=\"n\">a<\/span> <span class=\"o\">=<\/span> <span class=\"mi\">100<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"kt\">int<\/span> <span class=\"n\">b<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"n\">b<\/span> <span class=\"o\">=<\/span> <span class=\"n\">a<\/span><span class=\"o\">;<\/span>\r\n\t\t<span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">y<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/ \u30b3\u30f3\u30d1\u30a4\u30eb\u30a8\u30e9\u30fc<\/span>\r\n\t<span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u7ed3\u6784\u7c7b\u578b\u7cfb\u7edf<\/h1>\n<p>TypeScript\u3001OCaml\u3001ML\u7b49\u7f16\u7a0b\u8bed\u8a00\u4e2d\uff0c\u7c7b\u578b\u7cfb\u7edf\u4ee5\u7c7b\u578b\u7684\u7ed3\u6784\u4e3a\u57fa\u7840\u76f4\u63a5\u5b9a\u4e49\u4e86\u5b50\u7c7b\u578b\u5173\u7cfb\uff0c\u800c\u4e0d\u662f\u4f9d\u8d56\u4e8e\u540d\u79f0\u7684\u672c\u8d28\u3002<\/p>\n<div>\u6700\u8fd1\u6709\u4e00\u79cd\u65b9\u6cd5\u53ef\u4ee5\u5c06TypeScript\u8f6c\u4e3aNominal\u3002<\/div>\n<h2>\u4f18\u70b9<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5c11\u306a\u304f\u3068\u3082\u518d\u5e30\u578b\u304c\u306a\u3051\u308c\u3070\u3001\u69cb\u9020\u7684\u578b\u30b7\u30b9\u30c6\u30e0\u306e\u307b\u3046\u304c\u5c11\u3057\u6574\u7136\u30fb\u6d17\u7df4\u3055\u308c\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u69cb\u9020\u7684\u306a\u307b\u3046\u3067\u306f\u3001\u578b\u5f0f\u306f\u72ec\u7acb\u3057\u305f\u3082\u306e\u3068\u306a\u308a\u3001\u578b\u5f0f\u306e\u610f\u5473\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u5fc5\u8981\u306a\u60c5\u5831\u304c\u5099\u308f\u3063\u3066\u3044\u308b<\/ul>\n<h2>\u7f3a\u70b9<\/h2>\n<ul class=\"post-ul\">\u518d\u5e30\u578b\u304c\u5b9a\u7fa9\u3057\u306b\u304f\u3044<\/ul>\n<h2>\u7ed3\u6784\u7c7b\u578b<\/h2>\n<p>\u5982\u679c\u7ed3\u6784\u76f8\u540c\uff0c\u5219\u89c6\u4e3a\u76f8\u540c\u7c7b\u578b\u3002<\/p>\n<div>\u5e38\u5e38\u53ef\u4ee5\u770b\u5230\u5c06\u7b7e\u540d\u76f8\u540c\u7684\u65b9\u6cd5\u89c6\u4e3a\u76f8\u540c\u7c7b\u578b\u7684\u5b9a\u4e49\uff0c<br \/>\n\u7b7e\u540d\u7684\u5b9a\u4e49\u662f\u7528\u4e8e\u8bc6\u522b\u65b9\u6cd5\u7684\u4fe1\u606f\uff0c<br \/>\n\u4ece\u540d\u4e49\u7684\u89c2\u70b9\u6765\u8bf4\uff0c\u7b7e\u540d\u548c\u7ed3\u6784\u7684\u89c2\u70b9\u5b9a\u4e49\u7684\u7b7e\u540d\u6709\u4e0d\u540c\u7684\u542b\u4e49\u3002<br \/>\n\u5177\u4f53\u5730\u8bf4\uff0c\u524d\u8005\u7684\u7b7e\u540d\u5305\u62ec\u65b9\u6cd5\u540d\uff0c\u800c\u540e\u8005\u4e0d\u5305\u62ec\u65b9\u6cd5\u540d\u3002<\/div>\n<pre class=\"post-pre\"><code><span class=\"kd\">class<\/span> <span class=\"nc\">Dog<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nl\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"nf\">constructor<\/span><span class=\"p\">(<\/span><span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">name<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"kd\">class<\/span> <span class=\"nc\">Cat<\/span> <span class=\"p\">{<\/span>\r\n  <span class=\"nl\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">;<\/span>\r\n\r\n  <span class=\"nf\">constructor<\/span><span class=\"p\">(<\/span><span class=\"nx\">name<\/span><span class=\"p\">:<\/span> <span class=\"kr\">string<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span> <span class=\"o\">=<\/span> <span class=\"nx\">name<\/span><span class=\"p\">;<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c1\">\/\/\u3000\u5f15\u6570\u306bDog\u578b\u3092\u660e\u793a\u3059\u308b<\/span>\r\n<span class=\"kd\">const<\/span> <span class=\"nx\">printDogName<\/span> <span class=\"o\">=<\/span> <span class=\"p\">(<\/span><span class=\"nx\">dog<\/span><span class=\"p\">:<\/span> <span class=\"nx\">Dog<\/span><span class=\"p\">)<\/span> <span class=\"o\">=&gt;<\/span> <span class=\"nx\">console<\/span><span class=\"p\">.<\/span><span class=\"nf\">log<\/span><span class=\"p\">(<\/span><span class=\"nx\">dog<\/span><span class=\"p\">.<\/span><span class=\"nx\">name<\/span><span class=\"p\">);<\/span>\r\n\r\n<span class=\"nf\">printDogName<\/span><span class=\"p\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">Dog<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">\u30dd\u30c1<\/span><span class=\"dl\">\"<\/span><span class=\"p\">));<\/span> <span class=\"c1\">\/\/ OK ?<\/span>\r\n<span class=\"nf\">printDogName<\/span><span class=\"p\">(<\/span><span class=\"k\">new<\/span> <span class=\"nc\">Cat<\/span><span class=\"p\">(<\/span><span class=\"dl\">\"<\/span><span class=\"s2\">\u30bf\u30de<\/span><span class=\"dl\">\"<\/span><span class=\"p\">));<\/span> <span class=\"c1\">\/\/ OK ?\u3000\u69cb\u9020\u304c\u4e00\u7dd2\u306a\u306e\u3067\u540c\u3058\u30af\u30e9\u30b9\u3068\u307f\u306a\u3055\u308c\u308b\u3002<\/span>\r\n<\/code><\/pre>\n<h2>\u6784\u9020\u5b50\u7c7b\u578b\uff08\u69cb\u9020\u7684\u90e8\u5206\u578b\uff09<\/h2>\n<p>Structural Subtyping\u5728\u4e2d\u6587\u4e2d\u88ab\u79f0\u4e3a\u9759\u6001\u9e2d\u5b50\u7c7b\u578b\u3002<br \/>\n\u5173\u4e8e\u9759\u6001\u9e2d\u5b50\u7c7b\u578b\uff0c\u5728\u540e\u9762\u7ed9\u51fa\u4e86Golang\u63a5\u53e3\u7684\u4f8b\u5b50\u3002<\/p>\n<h1>\u6df7\u5408\u5f0f\u7684\u7c7b\u578b\u5316<\/h1>\n<p>\u6700\u8fd1\uff0c\u6709\u5f88\u591a\u8bed\u8a00\u540c\u65f6\u5177\u6709\u7ed3\u6784\u6027\u8d28\u548c\u540d\u4e49\u6027\u8d28\uff0c\u6bd4\u5982Golang\u548cScala\u7b49\u3002<\/p>\n<h2>Golang \u662f\u4e00\u79cd\u7ed3\u6784\u5316\u8bed\u8a00\u5417\uff1f<\/h2>\n<p>Golang \u770b\u8d77\u6765\u662f\u4e00\u79cd\u540d\u4e49\u7c7b\u578b(Nominal Typing)\u3002<br \/>\n\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u5373\u4f7f\u7c7b\u578b\u7ed3\u6784\u76f8\u540c\uff0c\u4f46\u7531\u4e8e\u7c7b\u578b\u540d\u79f0\u4e0d\u540c\uff0c\u6240\u4ee5\u4f1a\u4ea7\u751f\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"k\">type<\/span> <span class=\"n\">t<\/span> <span class=\"kt\">string<\/span>\r\n\t<span class=\"k\">var<\/span> <span class=\"n\">foo<\/span> <span class=\"n\">t<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"abc\"<\/span>\r\n\t<span class=\"k\">var<\/span> <span class=\"n\">bar<\/span> <span class=\"kt\">string<\/span>\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%T<\/span><span class=\"se\">\\n<\/span><span class=\"s\">\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">foo<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ main.t<\/span>\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%T<\/span><span class=\"se\">\\n<\/span><span class=\"s\">\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">bar<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ string<\/span>\r\n\t<span class=\"n\">bar<\/span> <span class=\"o\">=<\/span> <span class=\"n\">foo<\/span> <span class=\"c\">\/\/\u3000cannot use str1 (variable of type t) as string value in assignment<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u4e0d\u50cfJava\u90a3\u6837\u9700\u8981\u660e\u786e\u5730\u4e3a\u7c7b\u578b\u547d\u540d\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528\u65e0\u540d\u7c7b\u578b\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">fullname<\/span> <span class=\"o\">:=<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n\t\t<span class=\"n\">FirstName<\/span> <span class=\"kt\">string<\/span>\r\n\t\t<span class=\"n\">LastName<\/span>  <span class=\"kt\">string<\/span>\r\n\t<span class=\"p\">}{<\/span>\r\n\t\t<span class=\"n\">FirstName<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"John\"<\/span><span class=\"p\">,<\/span>\r\n\t\t<span class=\"n\">LastName<\/span><span class=\"o\">:<\/span>  <span class=\"s\">\"Doe\"<\/span><span class=\"p\">,<\/span>\r\n\t<span class=\"p\">}<\/span>\r\n\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Printf<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%T<\/span><span class=\"se\">\\n<\/span><span class=\"s\">\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">fullname<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5176\u4ed6\u4f8b\u5b50\uff1ahttps:\/\/go.dev\/play\/p\/Q5wSbFPNbx7<\/p>\n<p>\u7136\u540e\uff0c\u5173\u4e8e\u662f\u5426\u7b26\u5408\u91cc\u65af\u79d1\u592b\u66ff\u6362\u539f\u5219\uff0c\u5728Golang\u4e2d\u65e0\u6cd5\u50cfJava\u4e00\u6837\u8fdb\u884c\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"k\">var<\/span> <span class=\"n\">x<\/span> <span class=\"kt\">int<\/span> <span class=\"o\">=<\/span> <span class=\"m\">100<\/span>\r\n\t<span class=\"k\">var<\/span> <span class=\"n\">y<\/span> <span class=\"kt\">float64<\/span>\r\n\t<span class=\"n\">y<\/span> <span class=\"o\">=<\/span> <span class=\"n\">x<\/span>\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"n\">y<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ \u30a8\u30e9\u30fc<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u90a3\u4e48\uff0c\u6211\u4eec\u6765\u8003\u8651\u4e00\u4e0b\u63a5\u53e3\u3002<\/p>\n<details>\u7528Golang\u5b9e\u73b0\u91cc\u5f0f\u66ff\u6362\u539f\u5219\u7684\u4ee3\u7801\u5982\u4e0b\uff1a&#8220;`go<br \/>\npackage main<\/p>\n<p>import &#8220;fmt&#8221;<\/p>\n<p>type factory interface {<br \/>\ncreateFace() string<br \/>\n}<\/p>\n<p>type Hero struct {<br \/>\nname string<br \/>\n}<\/p>\n<p>func (h Hero) createFace() string {<br \/>\nreturn h.name<br \/>\n}<\/p>\n<p>type Anpanman struct {<br \/>\nHero<br \/>\npunch string<br \/>\nkick string<br \/>\n}<\/p>\n<p>type Shokupanman struct {<br \/>\nHero<br \/>\npunch string<br \/>\n}<\/p>\n<p>type Batako struct{}<\/p>\n<p>func (Batako) changeFace(f factory) {<br \/>\nfmt.Println(f.createFace(), &#8220;\u65b0\u3057\u3044\u9854\u3088\u301c\uff01&#8221;)<br \/>\n}<\/p>\n<p>func main() {<br \/>\na := Anpanman{<br \/>\nHero: Hero{name: &#8220;\u30a2\u30f3\u30d1\u30f3\u30de\u30f3&#8221;},<br \/>\npunch: &#8220;\u30a2\u30f3\u30d1\u30f3\u30d1\u30f3\u30c1&#8221;,<br \/>\nkick: &#8220;\u30a2\u30f3\u30d1\u30f3\u30ad\u30c3\u30af&#8221;,<br \/>\n}<\/p>\n<p>s := Shokupanman{<br \/>\nHero: Hero{name: &#8220;\u98df\u30d1\u30f3\u30de\u30f3&#8221;},<br \/>\npunch: &#8220;\u98df\u30d1\u30f3\u30d1\u30f3\u30c1&#8221;,<br \/>\n}<\/p>\n<p>b := Batako{}<\/p>\n<p>b.changeFace(a) \/\/ \u30a2\u30f3\u30d1\u30f3\u30de\u30f3 \u65b0\u3057\u3044\u9854\u3088\u301c\uff01<br \/>\nb.changeFace(s) \/\/ \u98df\u30d1\u30f3\u30de\u30f3 \u65b0\u3057\u3044\u9854\u3088\u301c\uff01<br \/>\n}<br \/>\n&#8220;`<\/p>\n<\/details>\n<h2>\u4f7f\u7528Golang\u8fdb\u884c\u9e2d\u5b50\u7c7b\u578b<\/h2>\n<p>\u987a\u4fbf\u8bf4\u4e00\u4e0b\uff0c\u5c3d\u7ba1Golang\u662f\u4e00\u79cd\u52a8\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u4f46\u5e38\u5e38\u88ab\u79f0\u4e3a\u662f\u9e2d\u5b50\u7c7b\u578b\u3002<br \/>\n\u6211\u8ba4\u4e3a\u8fd9\u662f\u56e0\u4e3a\u5b83\u91c7\u7528\u4e86\u7ed3\u6784\u5b50\u7c7b\u578b\uff08\u9759\u6001\u9e2d\u5b50\u7c7b\u578b\uff09\u7684\u7f18\u6545\u3002<\/p>\n<p>\u521a\u521a\u7528Python<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">main<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"fmt\"<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Animal<\/span> <span class=\"k\">interface<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">Bark<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Dog<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">d<\/span> <span class=\"n\">Dog<\/span><span class=\"p\">)<\/span> <span class=\"n\">Bark<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Bow wow?\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Bird<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">b<\/span> <span class=\"n\">Bird<\/span><span class=\"p\">)<\/span> <span class=\"n\">sing<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Chun chun?\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">type<\/span> <span class=\"n\">Robot<\/span> <span class=\"k\">struct<\/span><span class=\"p\">{}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">r<\/span> <span class=\"n\">Robot<\/span><span class=\"p\">)<\/span> <span class=\"n\">Bark<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">fmt<\/span><span class=\"o\">.<\/span><span class=\"n\">Println<\/span><span class=\"p\">(<\/span><span class=\"s\">\"Woooo?\"<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">runBark<\/span><span class=\"p\">(<\/span><span class=\"n\">animal<\/span> <span class=\"n\">Animal<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">animal<\/span><span class=\"o\">.<\/span><span class=\"n\">Bark<\/span><span class=\"p\">()<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n\t<span class=\"n\">dog<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Dog<\/span><span class=\"p\">{}<\/span>\r\n\t<span class=\"n\">bird<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Bird<\/span><span class=\"p\">{}<\/span>\r\n\t<span class=\"n\">robot<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">Robot<\/span><span class=\"p\">{}<\/span>\r\n\r\n\t<span class=\"n\">runBark<\/span><span class=\"p\">(<\/span><span class=\"n\">dog<\/span><span class=\"p\">)<\/span>  <span class=\"c\">\/\/ Bow wow?<\/span>\r\n\t<span class=\"n\">runBark<\/span><span class=\"p\">(<\/span><span class=\"n\">bird<\/span><span class=\"p\">)<\/span>  <span class=\"c\">\/\/ \u30a8\u30e9\u30fc\u274c<\/span>\r\n\t<span class=\"n\">runBark<\/span><span class=\"p\">(<\/span><span class=\"n\">robot<\/span><span class=\"p\">)<\/span> <span class=\"c\">\/\/ Woooo?<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u53ea\u6709\u4e0d\u7b26\u5408Python\u884c\u4e3a\u7684bird\u624d\u4f1a\u51fa\u73b0\u9519\u8bef\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48Golang\u88ab\u79f0\u4e3a\u9e2d\u5b50\u7c7b\u578b\u7684\u539f\u56e0\u3002\u5c3d\u7ba1Golang\u662f\u5177\u540d\u5316\u7684\uff0c\u4f46\u5b83\u4e5f\u5177\u6709\u7ed3\u6784\u5b50\u7c7b\u578b\u5316\uff08\u9759\u6001\u9e2d\u5b50\u7c7b\u578b\u5316\uff09\u3002<\/p>\n<h1>\u754c\u9762<\/h1>\n<p>\u5728Golang\u548cJava\u4e2d\u6709interface\uff0c\u4f46\u5728Python\u4e2d\u4e0d\u5b58\u5728\u3002<br \/>\n\u6839\u636e\u4e0d\u540c\u7684\u8bed\u8a00\uff0c\u5b83\u4e5f\u88ab\u79f0\u4e3aprotocol\u3001trait\u7b49\u3002<br \/>\n\u6709\u4e00\u4e2a\u4ee5\u5951\u7ea6\u4e3a\u4f8b\u5b50\u6765\u89e3\u91cainterface\u7684\u7b80\u660e\u8bf4\u660e\u3002<br \/>\ninterface\u53ea\u662f\u5bf9\u8c61\u64cd\u4f5c\u540d\u79f0\u548c\u7c7b\u578b\u7684\u96c6\u5408\u3002<\/p>\n<h2>\u4f7f\u7528\u754c\u9762\u7684\u597d\u5904\u548c\u574f\u5904<\/h2>\n<h3>\u4f18\u70b9<\/h3>\n<p>\u80fd\u591f\u8fdb\u884c\u5b9e\u73b0\u7684\u5207\u6362<br \/>\n\u6d4b\u8bd5\u53d8\u5f97\u66f4\u52a0\u5bb9\u6613<br \/>\n\u53ef\u4ee5\u8fdb\u884c\u591a\u91cd\u7ee7\u627f<\/p>\n<h3>\u7f3a\u70b9<\/h3>\n<p>\u53ef\u80fd\u4f1a\u53d8\u5f97\u5197\u957f\u3002<\/p>\n<h2>Golang\u548cJava\u7684Interface\u4e4b\u95f4\u6709\u4f55\u5dee\u5f02\uff1f<\/h2>\n<p>\u9996\u5148\uff0c\u4f5c\u4e3a\u6700\u5927\u7684\u4e0d\u540c\u4e4b\u4e00\uff0cJava\u4e2d\u9700\u8981\u660e\u786e\u4f7f\u7528implements\u5173\u952e\u5b57\u3002<br \/>\n\u76f8\u6bd4\u4e4b\u4e0b\uff0cGolang\u4e2d\u7684\u63a5\u53e3\u662f\u7ed3\u6784\u5316\u7684\uff0c\u5c31\u50cf\u4e4b\u524d\u63d0\u5230\u7684\u9e2d\u5b50\u7c7b\u578b\u793a\u4f8b\u4e00\u6837\uff0c\u56e0\u6b64\u4e0d\u9700\u8981\u660e\u786e\u58f0\u660e\u3002<\/p>\n<p>\u5728\u4e1a\u52a1\u4e2d\uff0c\u5f88\u591a\u60c5\u51b5\u4e0b\u5efa\u8bae\u4f7f\u7528Java\u7f16\u5199\u63a5\u53e3\u3002\u7136\u800c\uff0c\u5728Golang\u4e2d\uff0c\u7f16\u5199\u63a5\u53e3\u5f80\u5f80\u88ab\u8ba4\u4e3a\u662f\u5197\u957f\u7684\u3002<br \/>\n\u5728Java\u4e2d\uff0c\u63a5\u53e3\u672c\u8eab\u88ab\u89c6\u4e3a\u57fa\u7840\u7c7b\u578b\uff0c\u7528\u4e8e\u8868\u793a\u5b83\u662f\u4ec0\u4e48\u6837\u7684\u7c7b\u3002<br \/>\nGolang\u88ab\u79f0\u4e3a\u9759\u6001\u9e2d\u5b50\u7c7b\u578b\uff0c\u800cGolang\u7684\u63a5\u53e3\u5b9a\u4e49\u4e86\u5e94\u8be5\u6ee1\u8db3\u7684\u884c\u4e3a\uff0c\u5e76\u901a\u8fc7\u6ee1\u8db3\u8fd9\u4e9b\u884c\u4e3a\u6765\u8868\u793a\u7ea6\u675f\u3002<\/p>\n<h1>\u5c1d\u8bd5\u7528Python\u7f16\u5199Golang\u548cJava\u4e2d\u7684\u63a5\u53e3<\/h1>\n<p>\u7528interface\u6765\u91cd\u5199\u4e4b\u524d\u7b80\u5355\u7684\u7c7b\u3002Golang\u7684interface\u548cJava\u7684\u663e\u5f0finterface\u7684\u76ee\u7684\u90fd\u662f\u8868\u8fbe\u51fa\u884c\u4e3a\uff0c\u5c31\u50cf\u9e2d\u5b50\u7c7b\u578b\u4e00\u6837\uff0c\u4f46\u5b83\u4eec\u5e76\u4e0d\u5b8c\u5168\u76f8\u540c\u3002\u5f53\u7136\uff0c\u5728\u7528Python\u5199\u7684\u65f6\u5019\u4e5f\u5b8c\u5168\u4e0d\u4e00\u6837\u3002<\/p>\n<h2>Java\u7684\u63a5\u53e3<\/h2>\n<details>Java\u7684\u63a5\u53e3Java\u7684\u63a5\u53e3Animal {<br \/>\nString bark();<br \/>\n}<\/p>\n<p>Java\u7684\u7c7bDog\u5b9e\u73b0\u4e86Animal {<br \/>\nprivate String name;<\/p>\n<p>public Dog(String name) {<br \/>\nthis.name = name;<br \/>\n}<\/p>\n<p>@Override<br \/>\npublic String bark() {<br \/>\nreturn this.name + &#8221; : \u6c6a\u6c6a!&#8221;;<br \/>\n}<\/p>\n<p>public static void main(String[] args) {<br \/>\nAnimal dog = new Dog(&#8220;\u5c0f\u9ed1&#8221;);<br \/>\nSystem.out.println(dog.bark()); \/\/ \u5c0f\u9ed1 : \u6c6a\u6c6a!<br \/>\n}<br \/>\n}<\/p>\n<\/details>\n<p>\u8fd9\u53ef\u4ee5\u7528Python\u7f16\u5199\uff0c\u5e76\u4f7f\u7528ABC\u6765\u5b8c\u6210\u3002<\/p>\n<details>\u4f7f\u7528Python\u7f16\u5199\u7684Java\u63a5\u53e3Java\u63a5\u53e3<br \/>\n\u4eceabc\u5e93\u4e2d\u5bfc\u5165ABC\u548cabstractmethod<\/p>\n<p>class Animal(ABC):<br \/>\n@abstractmethod<br \/>\ndef bark(self):<br \/>\npass<\/p>\n<p>class Dog(Animal):<br \/>\ndef __init__(self, name):<br \/>\nself.name = name<\/p>\n<p>def bark(self):<br \/>\nreturn f&#8221;{self.name} : wangwang!&#8221;<\/p>\n<p>dog = Dog(&#8220;\u65fa\u8d22&#8221;)<br \/>\nprint(dog.bark()) # \u65fa\u8d22 : wangwang!<\/p>\n<\/details>\n<p>\u5f53\u4f7f\u7528ABC\u6765\u5b9e\u73b0\u4e0eJava\u4e2d\u7684public class Dog implements Animal\u76f8\u540c\u7684\u529f\u80fd\u65f6\uff0c\u9700\u8981\u660e\u786e\u4f7f\u7528class Dog(Animal)\u6765\u6307\u5b9a\u3002<\/p>\n<h2>Golang\u7684\u63a5\u53e3<\/h2>\n<details>\u5728Golang\u4e2d\uff0cgo\u7684\u63a5\u53e3<br \/>\npackage main<\/p>\n<p>import &#8220;fmt&#8221;<\/p>\n<p>type Animal interface {<br \/>\nBark() string<br \/>\n}<\/p>\n<p>type Dog struct {<br \/>\nname string<br \/>\n}<\/p>\n<p>func NewDog(name string) *Dog {<br \/>\nreturn &amp;Dog{name}<br \/>\n}<\/p>\n<p>func (d *Dog) Bark() string {<br \/>\nreturn d.name + &#8221; : \u6c6a\u6c6a\uff01&#8221;<br \/>\n}<\/p>\n<p>func main() {<br \/>\ndog := NewDog(&#8220;\u65fa\u8d22&#8221;)<br \/>\nfmt.Println(dog.Bark()) \/\/ \u65fa\u8d22 : \u6c6a\u6c6a\uff01<br \/>\n}<\/p>\n<\/details>\n<p>Golang \u7684 interface \u662f structural \u7684\u3002\u524d\u9762\u7684 Java \u4f8b\u5b50\u662f nominal \u7684\u3002<br \/>\nPython \u4f7f\u7528 typing \u7684 Protocol \u6765\u5b9e\u73b0\u8fd9\u4e00\u70b9\u3002Protocol \u5728 Python \u4e2d\u5b9e\u73b0\u4e86 Structural Subtyping\uff08\u9759\u6001\u9e2d\u5b50\u7c7b\u578b\uff09\u3002<\/p>\n<details>\u4f7f\u7528Python\u7f16\u5199\u7684Golang\u63a5\u53e3Go\u7684\u63a5\u53e3<br \/>\n\u4ecetyping\u5bfc\u5165Protocol<\/p>\n<p>class Animal(Protocol):<br \/>\ndef bark(self) -&gt; str:<br \/>\npass<\/p>\n<p>class Dog:<br \/>\ndef __init__(self, name: str):<br \/>\nself.name = name<\/p>\n<p>def bark(self) -&gt; str:<br \/>\nreturn f&#8221;{self.name} : \u6c6a\u6c6a!&#8221;<\/p>\n<p>dog = Dog(&#8220;\u65fa\u8d22&#8221;)<br \/>\nprint(dog.bark()) # \u65fa\u8d22 : \u6c6a\u6c6a!<\/p>\n<\/details>\n<p>\u4e0d\u9700\u8981\u50cfABC\u90a3\u6837\u660e\u786e\u58f0\u660e\u4e3a\u7c7bDog\uff08Animal\uff09\u4e00\u6837\u3002<\/p>\n<h1>\u6700\u7ec8\uff0c<\/h1>\n<p>\u56e0\u4e3a\u8fd9\u7bc7\u6587\u7ae0\u53d8\u5f97\u592a\u957f\u4e86\uff0c\u6240\u4ee5\u7701\u7565\u4e86\u4f7f\u7528\u754c\u9762\u7684DI\uff08\u4f9d\u8d56\u53cd\u8f6c\uff09\u7b49\u793a\u4f8b\u3002\u4f46\u662f\u5728\u4e0b\u4e00\u7bc7\u6587\u7ae0\u4e2d\uff0c\u6211\u60f3\u8981\u8c08\u8bbaDI\u548c\u66f4\u5b9e\u7528\u7684\u4f8b\u5b50\u3002<\/p>\n<h1>\u6587\u732e\u5f15\u7528<\/h1>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u300aTypes and Programming Languages\u300b\uff08The MIT Press\uff09\u786c\u76ae\u7248-2002\u5e741\u67084\u65e5<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u63a5\u53e3\uff08Interface\uff09\u7c7b\u578b\u662f\u7531\u4e00\u7ec4\u65b9\u6cd5\u7b7e\u540d\u5b9a\u4e49\u7684\u3002\u8fd9\u610f\u5473\u7740\u4ec0\u4e48\uff1f<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u63a5\u53e3\u4f5c\u4e3a\u201c\u5408\u7ea6\u201d\u7684\u95ee\u9898\u70b9\u2014\u2014\u5bf9\u201c\u63a5\u53e3\u9ed8\u8ba4\u5b9e\u73b0\u201d\u7684 C# \u7684\u5f15\u5165\uff08\u524d\u7bc7\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4ec0\u4e48\u662f\u63a5\u53e3\uff08Interface\uff09\uff1f| \u4f7f\u7528\u63a5\u53e3\u7684\u65b9\u6cd5<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u63a5\u53e3\u6709\u4ec0\u4e48\u597d\u5904\uff1f<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>https:\/\/peps.python.org\/pep-0544\/<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Python \u4e2d\u534f\u8bae\uff08\u9e2d\u5b50\u7c7b\u578b\uff09\u548c ABC\uff08\u62bd\u8c61\uff09\u7684\u533a\u522b<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u3010Java\u3011\u8003\u8651\u4f7f\u7528\u63a5\u53e3\u7684\u5b9e\u9645\u4f8b\u5b50<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4e3a\u4ec0\u4e48\u8981\u4f7f\u7528\u63a5\u53e3\uff1f<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u8bf4 Go \u91c7\u7528\u4e86\u9e2d\u5b50\u7c7b\u578b\uff1f\u4ece\u6570\u636e\u7ed3\u6784\u8be6\u7ec6\u89e3\u91ca<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u901a\u8fc7Go\u7684\u5b9e\u73b0\u793a\u4f8b\u7406\u89e3\u9e2d\u5b50\u7c7b\u578b<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Python \u4e2d\u534f\u8bae\uff08\u9e2d\u5b50\u7c7b\u578b\uff09\u548c ABC\uff08\u62bd\u8c61\uff09\u7684\u533a\u522b<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u7ed3\u6784\u5b50\u7c7b\u578b\u4e0e\u540d\u4e49\u5b50\u7c7b\u578b\u6bd4\u8f83\u7406\u89e3<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u7ed3\u6784\u5b50\u7c7b\u578b<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4f60\u5f88\u64c5\u957f\u6cdb\u578b\uff0c\u662f\u5417\uff1f\u6216\u8005\u8bf4\uff0c\u201c\u7ea6\u675f\u9020\u5c31\u7ed3\u6784\u201d<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u65e0\u9700\u9884\u5148\u58f0\u660e\u63a5\u53e3\u7c7b\u578b<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>\u4ee5\u5d4c\u5165\u7c7b\u578b\u7684\u65b9\u5f0f\u4f5c\u4e3a\u7ed3\u6784\u4f53\uff08Go\u4e2d\u4e0d\u4f7f\u7528\u7ee7\u627f\uff09<\/ol>\n<\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<ol>\n<li 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