{"id":907,"date":"2023-04-30T19:00:42","date_gmt":"2023-07-29T19:19:57","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%9c%a8c%e4%b8%ad%e6%af%94%e8%be%83%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84%e4%b8%89%e7%a7%8d%e6%96%b9%e5%bc%8f\/"},"modified":"2025-08-03T17:40:12","modified_gmt":"2025-08-03T09:40:12","slug":"%e5%9c%a8c%e4%b8%ad%e6%af%94%e8%be%83%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84%e4%b8%89%e7%a7%8d%e6%96%b9%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8c%e4%b8%ad%e6%af%94%e8%be%83%e5%ad%97%e7%ac%a6%e4%b8%b2%e7%9a%84%e4%b8%89%e7%a7%8d%e6%96%b9%e5%bc%8f\/","title":{"rendered":"C++\u5b57\u7b26\u4e32\u6bd4\u8f83\uff1a\u4e09\u79cd\u65b9\u6cd5\u8be6\u7ec6\u89e3\u6790\u4e0e\u6027\u80fd\u5bf9\u6bd4"},"content":{"rendered":"<h3>\u4ecb\u7ecd<\/h3>\n<p>\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u4f60\u5c06\u5b66\u4e60\u5982\u4f55\u5728C++\u4e2d\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u5728C++\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6280\u672f\u6765\u6bd4\u8f83\u5b57\u7b26\u4e32\uff1a<\/p>\n<ol>\n<li>\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\u8fdb\u884c\u6bd4\u8f83\u3002<\/li>\n<li>\u4f7f\u7528\u5b57\u7b26\u4e32\u7684\u6210\u5458\u51fd\u6570compare()\u8fdb\u884c\u6bd4\u8f83\u3002<\/li>\n<li>\u4f7f\u7528\u5e93\u51fd\u6570strcmp()\u8fdb\u884c\u6bd4\u8f83\u3002<\/li>\n<li>\u4f7f\u7528\u5e93\u51fd\u6570strcoll()\u8fdb\u884c\u6bd4\u8f83\u3002\uff08\u53ef\u8fdb\u884c\u672c\u5730\u5316\u7684\u5b57\u7b26\u4e32\u6bd4\u8f83\uff09<\/li>\n<\/ol>\n<h3>\u5b57\u7b26\u4e32\u6bd4\u8f83\u65b9\u6cd5\u6982\u89c8<\/h3>\n<ul>\n<li>strcmp()\u51fd\u6570<\/li>\n<li>\u5185\u7f6e\u7684compare()\u51fd\u6570<\/li>\n<li>C++\u5173\u7cfb\u8fd0\u7b97\u7b26\uff08==\uff0c!=\uff09<\/li>\n<\/ul>\n<h2>\u5728C++\u4e2d\u4f7f\u7528\u5b57\u7b26\u4e32strcmp()\u51fd\u6570<\/h2>\n<p>C++\u5b57\u7b26\u4e32\u5177\u6709\u7cfb\u7edf\u5185\u7f6e\u7684\u64cd\u4f5c\u5b57\u7b26\u4e32\u6570\u636e\u7684\u51fd\u6570\u3002strcmp()\u51fd\u6570\u662f\u4e00\u4e2aC\u5e93\u51fd\u6570\uff0c\u7528\u4e8e\u6309\u5b57\u5178\u987a\u5e8f\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n<h3>strcmp() \u8bed\u6cd5<\/h3>\n<ul class=\"post-ul\">\n<li>\u8f93\u5165\u5b57\u7b26\u4e32\u5fc5\u987b\u662fC\u98ce\u683c\u5b57\u7b26\u4e32\u7684\u5b57\u7b26\u6570\u7ec4\u3002<\/li>\n<li>strcmp()\u51fd\u6570\u4e5f\u4f1a\u4ee5\u533a\u5206\u5927\u5c0f\u5199\u7684\u5f62\u5f0f\u6bd4\u8f83\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">int<\/span> <span class=\"token function\">strcmp<\/span><span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <mark><span class=\"token operator\">*<\/span>str1<\/mark><span class=\"token punctuation\">,<\/span> <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <mark><span class=\"token operator\">*<\/span>str2<\/mark><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><\/code><\/pre>\n<p>\u6839\u636e\u5339\u914d\u7684\u60c5\u51b5\uff0c\u6b64\u51fd\u6570\u8fd4\u56de\u4ee5\u4e0b\u503c\u3002<\/p>\n<ul class=\"post-ul\">\n<li>\u5982\u679c\u4e24\u4e2a\u5b57\u7b26\u4e32\u76f8\u540c\uff0c\u5219\u8fd4\u56de0\u3002<\/li>\n<li>\u5982\u679c\u7b2c\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u5b57\u7b26\u503c\u5c0f\u4e8e\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u4e32\u7684\u8f93\u5165\uff0c\u5219\u8fd4\u56de&lt; 0\uff08\u5c0f\u4e8e\u96f6\uff09\u3002<\/li>\n<li>\u5f53\u7b2c\u4e8c\u4e2a\u5b57\u7b26\u4e32\u6bd4\u8f83\u5927\u65f6\uff0c\u7ed3\u679c\u4e3a&gt; 0\uff08\u5927\u4e8e\u96f6\uff09\u3002<\/li>\n<\/ul>\n<h3>strcmp() \u793a\u4f8b1<\/h3>\n<p>\u8fd0\u884c\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span><span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">{<\/span>    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>str_inp1 <span class=\"token operator\">=<\/span> <span class=\"token string\">\"String Match\"<\/span><span class=\"token punctuation\">;<\/span>    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>str_inp2 <span class=\"token operator\">=<\/span> <span class=\"token string\">\"String Unmatch\"<\/span><span class=\"token punctuation\">;<\/span>    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"String 1: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp1 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"String 2: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp2 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">strcmp<\/span><span class=\"token punctuation\">(<\/span>str_inp1<span class=\"token punctuation\">,<\/span> str_inp2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u4e24\u4e2a\u8f93\u5165\u5b57\u7b26\u4e32\u662f\u76f8\u7b49\u7684\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>    <span class=\"token keyword\">else<\/span>        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u8f93\u5165\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span><span class=\"token punctuation\">}<\/span><\/code><\/pre>\n<p>\u8fd9\u5c06\u4f1a\u4ea7\u751f\u4ee5\u4e0b\u7684\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<div class=\"secondary-code-label\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\">String 1: String Match\r\nString 2: String Unmatch\r\n\u8f93\u5165\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\u3002<\/pre>\n<p>strcmp(str_inp1, str_inp2)\u7684\u7ed3\u679c\u662f-9\u3002str_inp1\u548cstr_inp2\u7684\u503c\u662f\u4e0d\u540c\u7684\u3002<\/p>\n<h3>strcmp() \u793a\u4f8b2<\/h3>\n<p>strcmp\uff08\uff09\u51fd\u6570\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u3002\u4e0b\u9762\u662fstrcmp\uff08\uff09\u7684\u793a\u4f8b\u7528\u6cd5\uff1a<\/p>\n<p>&#8220;`c++<br \/>\n#include<br \/>\n#include<\/p>\n<p>int main() {<br \/>\nchar str1[15], str2[15];<br \/>\nint ret;<\/p>\n<p>strcpy(str1, &#8220;abcd&#8221;);<br \/>\nstrcpy(str2, &#8220;wxyz&#8221;);<\/p>\n<p>ret = strcmp(str1, str2);<\/p>\n<p>if(ret &lt; 0) { printf(&#8220;str1 \u5c0f\u4e8e str2&#8221;); } else if(ret &gt; 0) {<br \/>\nprintf(&#8220;str1 \u5927\u4e8e str2&#8221;);<br \/>\n} else {<br \/>\nprintf(&#8220;str1 \u7b49\u4e8e str2&#8221;);<br \/>\n}<\/p>\n<p>return 0;<br \/>\n}<br \/>\n&#8220;`<\/p>\n<p>\u8be5\u4ee3\u7801\u6bb5\u901a\u8fc7strcmp\uff08\uff09\u51fd\u6570\u6bd4\u8f83\u4e86\u4e24\u4e2a\u5b57\u7b26\u4e32str1\u548cstr2\u3002\u5982\u679cstr1\u5c0f\u4e8estr2\uff0c\u5219\u8f93\u51fa\u201cstr1 \u5c0f\u4e8e str2\u201d\uff0c\u5982\u679cstr1\u5927\u4e8estr2\uff0c\u5219\u8f93\u51fa\u201cstr1 \u5927\u4e8e str2\u201d\uff0c\u5982\u679c\u4e24\u4e2a\u5b57\u7b26\u4e32\u76f8\u7b49\uff0c\u5219\u8f93\u51fa\u201cstr1 \u7b49\u4e8e str2\u201d\u3002<\/p>\n<p>\u8fd0\u884c\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n\r\n<span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;string.h&gt;<\/span><\/span>\r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>str_inp1 <span class=\"token operator\">=<\/span> <span class=\"token string\">\"String Match\"<\/span><span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">const<\/span> <span class=\"token keyword\">char<\/span> <span class=\"token operator\">*<\/span>str_inp2 <span class=\"token operator\">=<\/span> <span class=\"token string\">\"String Match\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"String 1: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp1 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"String 2: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp2 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token function\">strcmp<\/span><span class=\"token punctuation\">(<\/span>str_inp1<span class=\"token punctuation\">,<\/span> str_inp2<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\nBoth the input strings are equal.\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">else<\/span>\r\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\nThe input strings are not equal.\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u5c06\u4ea7\u751f\u4ee5\u4e0b\u7684\u8f93\u51fa\u7ed3\u679c\uff1a<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">Output<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>String 1: String Match String 2: String Match Both the input strings are equal.<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>strcmp(str_inp1, str_inp2) \u7684\u7ed3\u679c\u662f0\u3002str_inp1 \u548c str_inp2 \u7684\u503c\u76f8\u540c\u3002<\/p>\n<h2>2. \u5728C++\u4e2d\u4f7f\u7528compare()\u51fd\u6570\u3002C++ \u4e2d\u81ea\u5e26\u4e86\u4e00\u4e2a compare() \u51fd\u6570\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n<h3>\u6bd4\u8f83(Syntax)\u51fd\u6570\u7684\u8bed\u6cd5compare() \u51fd\u6570\u7528\u4e8e\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token keyword\">int<\/span> <span class=\"token function\">compare<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token keyword\">const<\/span> string<span class=\"token operator\">&amp;<\/span> <mark>string<span class=\"token operator\">-<\/span>name<\/mark><span class=\"token punctuation\">)<\/span> <span class=\"token keyword\">const<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<p>\u8be5\u51fd\u6570\u6839\u636e\u5339\u914d\u7684\u60c5\u51b5\u8fd4\u56de\u4ee5\u4e0b\u503c\uff1a<\/p>\n<ul class=\"post-ul\">\n<li>Returns 0 if both the strings are the same.<\/li>\n<li>Returns &lt; 0 (less than zero) if the value of the character of the first string is smaller as compared to the second string input.<\/li>\n<li>Results out to be &gt; 0 (greater than zero) when the second string is greater in comparison.<\/li>\n<\/ul>\n<h3>\u4f8b1\uff1a\u4f7f\u7528compare()\u51fd\u6570<br \/>\n\u8fd9\u662f\u6587\u7ae0\u300a\u5728C++\u4e2d\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684\u4e09\u79cd\u65b9\u5f0f\u300b\u7684\u7b2c3\u90e8\u5206\uff08\u51716\u90e8\u5206\uff09\u3002<\/p>\n<p>\u5185\u5bb9\u7247\u6bb5: \u5728\u4e2d\u6587\u4e2d\uff0c&#8221;Using compare()\u51fd\u6570&#8221;\u53ef\u4ee5\u7ffb\u8bd1\u4e3a &#8220;\u4f7f\u7528compare()\u51fd\u6570&#8221;\u3002<\/p>\n<p>\u8fd0\u884c\u4ee5\u4e0b\u4ee3\u7801:<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>string <span class=\"token function\">str_inp1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"String Match\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>string <span class=\"token function\">str_inp2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"String Match\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u5b57\u7b26\u4e321: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp1 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u5b57\u7b26\u4e322: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp2 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\r\n\t<span class=\"token keyword\">int<\/span> res <span class=\"token operator\">=<\/span> str_inp1<span class=\"token punctuation\">.<\/span><span class=\"token function\">compare<\/span><span class=\"token punctuation\">(<\/span>str_inp2<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\t<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>res <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n\t\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u4e24\u4e2a\u8f93\u5165\u5b57\u7b26\u4e32\u76f8\u7b49\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">else<\/span> <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>res <span class=\"token operator\">&lt;<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n\t\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u5b57\u7b26\u4e321\u6bd4\u5b57\u7b26\u4e322\u5c0f\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">else<\/span>\r\n\t\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u5b57\u7b26\u4e321\u6bd4\u5b57\u7b26\u4e322\u5927\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u4f7f\u7528compare()\u51fd\u6570\u5bf9str_inp1\u548cstr_inp2\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>\u5b57\u7b26\u4e321: String Match\r\n\u5b57\u7b26\u4e322: String Match\r\n\r\n\u4e24\u4e2a\u8f93\u5165\u5b57\u7b26\u4e32\u76f8\u7b49\u3002<\/code><\/pre>\n<p>\u7531\u4e8e\u4e24\u4e2a\u5b57\u7b26\u4e32\u5728\u5b57\u5178\u4e0a\u662f\u76f8\u540c\u7684\uff0c\u56e0\u6b64\u8be5\u51fd\u6570\u8fd4\u56de0\u3002<\/p>\n<h3>\u4f8b\u5b502\uff1a\u4f7f\u7528compare()<\/h3>\n<h2>\u4f7f\u7528compare()\u51fd\u6570\u6bd4\u8f83\u5b57\u7b26\u4e32<\/h2>\n<p>\u8fd0\u884c\u4e0b\u9762\u7684\u4ee3\u7801\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n    std<span class=\"token double-colon punctuation\">::<\/span>string <span class=\"token function\">str_inp0<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"String Match\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    std<span class=\"token double-colon punctuation\">::<\/span>string <span class=\"token function\">str_inp1<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"String Match\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n    std<span class=\"token double-colon punctuation\">::<\/span>string <span class=\"token function\">str_inp2<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"String Unmatch\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u5b57\u7b26\u4e321: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp1 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>str_inp1<span class=\"token punctuation\">.<\/span><span class=\"token function\">compare<\/span><span class=\"token punctuation\">(<\/span>str_inp0<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u5b57\u7b26\u4e32\u76f8\u7b49\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">else<\/span>\r\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\r\n    std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u5b57\u7b26\u4e322: \"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> str_inp2 <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\r\n    <span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>str_inp2<span class=\"token punctuation\">.<\/span><span class=\"token function\">compare<\/span><span class=\"token punctuation\">(<\/span>str_inp0<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">==<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">)<\/span>\r\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u5b57\u7b26\u4e32\u76f8\u7b49\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n    <span class=\"token keyword\">else<\/span>\r\n        std<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\\n\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\u3002\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u5c06str_inp0\u4e0estr_inp1\u8fdb\u884c\u4e86\u6bd4\u8f83\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\u7ed3\u679c\">\u8f93\u51fa\u7ed3\u679c<\/div>\n<pre class=\"post-pre\">\u5b57\u7b26\u4e321: String Match\r\n\u5b57\u7b26\u4e32\u76f8\u7b49\u3002<\/pre>\n<p>\u7136\u540e\uff0c\u5c06str_inp0\u4e0estr_inp2\u8fdb\u884c\u6bd4\u8f83\u3002<\/p>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\u7ed3\u679c\">\u8f93\u51fa\u7ed3\u679c<\/div>\n<pre class=\"post-pre\">\u5b57\u7b26\u4e322: String Unmatch\r\n\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\u3002<\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u76f4\u63a5\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u4e0e\u53e6\u4e00\u4e2a\u8f93\u5165\u5b57\u7b26\u4e32\u8fdb\u884c\u6bd4\u8f83\uff0c\u7528\u4e8ecompare()\u51fd\u6570\u3002<\/p>\n<h2>3. C++\u4e2d\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26<\/h2>\n<p>C++ \u4e2d\u7684\u5173\u7cfb\u8fd0\u7b97\u7b26\u6bd4\u5982 == \uff08\u7b49\u4e8e\uff09\u548c != \uff08\u4e0d\u7b49\u4e8e\uff09\u5728\u6bd4\u8f83\u5b57\u7b26\u4e32\u65f6\u53ef\u4ee5\u5f88\u6709\u5e2e\u52a9\u3002<\/p>\n<h3>\u5173\u7cfb\u8fd0\u7b97\u7b26\u8bed\u6cd5<\/h3>\n<h3>\u68c0\u67e5\u4e24\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u76f8\u7b49<\/h3>\n<p>\u4f7f\u7528\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff08==\uff09\u53ef\u4ee5\u68c0\u67e5\u4e24\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u76f8\u7b49\uff1a<\/p>\n<pre class=\"post-pre\"><code>string1 <span class=\"token operator\">==<\/span> string2\r\n<\/code><\/pre>\n<p>\u4f7f\u7528\u4e0d\u7b49\u4e8e\u8fd0\u7b97\u7b26\uff08!=\uff09\u53ef\u4ee5\u68c0\u67e5\u4e24\u4e2a\u5b57\u7b26\u4e32\u662f\u5426\u4e0d\u76f8\u7b49\uff1a<\/p>\n<pre class=\"post-pre\"><code>string1 <span class=\"token operator\">!=<\/span> string2\r\n<\/code><\/pre>\n<h3>\u793a\u4f8b1\uff1a\u4f7f\u7528C++\u4e2d\u7684&#8221;==&#8221;\u8fd0\u7b97\u7b26<\/h3>\n<p>\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u7b49\u4e8e\u8fd0\u7b97\u7b26\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>string str_inp1<span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>string str_inp2<span class=\"token punctuation\">;<\/span>\r\n\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u8bf7\u8f93\u5165\u5b57\u7b26\u4e321\uff1a\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cin <span class=\"token operator\">&gt;&gt;<\/span> str_inp1<span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u8bf7\u8f93\u5165\u5b57\u7b26\u4e322\uff1a\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cin <span class=\"token operator\">&gt;&gt;<\/span> str_inp2<span class=\"token punctuation\">;<\/span>\r\n\r\n\t<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>str_inp1 <span class=\"token operator\">==<\/span> str_inp2<span class=\"token punctuation\">)<\/span>\r\n\t\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u4e24\u4e2a\u5b57\u7b26\u4e32\u76f8\u7b49\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">else<\/span>\r\n\t\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u4e24\u4e2a\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u7a0b\u5e8f\u8fd0\u884c\u793a\u4f8b\uff1a<\/p>\n<pre class=\"post-pre\"><code>\u8bf7\u8f93\u5165\u5b57\u7b26\u4e321\uff1a\r\nSilicon Cloud\r\n\u8bf7\u8f93\u5165\u5b57\u7b26\u4e322\uff1a\r\ndigitalocean\r\n\u4e24\u4e2a\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\r\n<\/code><\/pre>\n<p>\u8fd9\u6bb5\u4ee3\u7801\u4f7f\u7528&#8221;==&#8221;\u8fd0\u7b97\u7b26\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u5185\u5bb9\u662f\u5426\u5b8c\u5168\u76f8\u540c\u3002<\/p>\n<h3>\u793a\u4f8b2\uff1a\u4f7f\u7528C++\u4e2d\u7684\u4e0d\u7b49\u4e8e\u8fd0\u7b97\u7b26<\/h3>\n<h2>\u4f7f\u7528\u5173\u7cfb\u8fd0\u7b97\u7b26\u6bd4\u8f83\u5b57\u7b26\u4e32<\/h2>\n<p>\u8fd0\u884c\u4ee5\u4e0b\u4ee3\u7801\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"token macro property\"><span class=\"token directive-hash\">#<\/span><span class=\"token directive keyword\">include<\/span> <span class=\"token string\">&lt;iostream&gt;<\/span><\/span>\r\n\r\n<span class=\"token keyword\">int<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span>\r\n<span class=\"token punctuation\">{<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>string str_inp1<span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>string str_inp2<span class=\"token punctuation\">;<\/span>\r\n\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u8f93\u5165\u5b57\u7b26\u4e321\uff1a\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cin <span class=\"token operator\">&gt;&gt;<\/span> str_inp1<span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u8f93\u5165\u5b57\u7b26\u4e322\uff1a\\n\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\tstd<span class=\"token double-colon punctuation\">::<\/span>cin <span class=\"token operator\">&gt;&gt;<\/span> str_inp2<span class=\"token punctuation\">;<\/span>\r\n\r\n\t<span class=\"token keyword\">if<\/span> <span class=\"token punctuation\">(<\/span>str_inp1 <span class=\"token operator\">!=<\/span> str_inp2<span class=\"token punctuation\">)<\/span>\r\n\t\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u5b57\u7b26\u4e32\u4e0d\u76f8\u7b49\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token keyword\">else<\/span>\r\n\t\tstd<span class=\"token double-colon punctuation\">::<\/span>cout <span class=\"token operator\">&lt;&lt;<\/span> <span class=\"token string\">\"\u5b57\u7b26\u4e32\u76f8\u7b49\"<\/span> <span class=\"token operator\">&lt;&lt;<\/span> std<span class=\"token double-colon punctuation\">::<\/span>endl<span class=\"token punctuation\">;<\/span>\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u63d0\u4f9b&#8221;\u5b57\u7b26\u4e321&#8243;\u548c&#8221;\u5b57\u7b26\u4e322&#8243;\u7684\u503c\uff1a<\/p>\n<pre class=\"post-pre\"><code>\u8f93\u5165\u5b57\u7b26\u4e321\uff1a\r\nSilicon Cloud\r\n\u8f93\u5165\u5b57\u7b26\u4e322\uff1a\r\nSilicon Cloud\r\n\u5b57\u7b26\u4e32\u76f8\u7b49\r\n<\/code><\/pre>\n<p>\u4ee3\u7801\u5c06\u4f7f\u7528!=\u8fd0\u7b97\u7b26\u6765\u6bd4\u8f83\u4e24\u4e2a\u5b57\u7b26\u4e32\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u4f60\u5b66\u4f1a\u4e86\u5728C++\u4e2d\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684\u4e09\u79cd\u65b9\u6cd5\u3002\u5176\u4e2d\u5305\u62ecC\u98ce\u683c\u5b57\u7b26\u4e32\u7684strcmp()\u51fd\u6570\u3001string\u7c7b\u7684compare()\u51fd\u6570\u548c\u5173\u7cfb\u8fd0\u7b97\u7b26\uff08==\u3001!=\uff09\u3002<\/p>\n<p>\u7ee7\u7eed\u901a\u8fc7\u66f4\u591a\u7684C++\u6559\u7a0b\u6765\u6df1\u5165\u5b66\u4e60\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd \u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\uff0c\u4f60\u5c06\u5b66\u4e60\u5982\u4f55\u5728C++\u4e2d\u6bd4\u8f83\u5b57\u7b26\u4e32\u7684\u65b9\u6cd5\u3002 \u5728C++\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6280\u672f\u6765\u6bd4\u8f83\u5b57\u7b26\u4e32\uff1a \u4f7f\u7528 [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[2329,1447,181],"class_list":{"0":"post-907","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-c","9":"tag-181"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>C++\u5b57\u7b26\u4e32\u6bd4\u8f83\uff1a\u4e09\u79cd\u65b9\u6cd5\u8be6\u7ec6\u89e3\u6790\u4e0e\u6027\u80fd\u5bf9\u6bd4 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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