{"id":54,"date":"2023-07-06T00:29:57","date_gmt":"2023-12-03T22:49:05","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/index.php\/2023\/11\/30\/%e5%a6%82%e4%bd%95%e5%9c%a8java%e4%b8%ad%e5%88%a0%e9%99%a4%e5%ad%97%e7%ac%a6%e4%b8%b2%e4%b8%ad%e7%9a%84%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6\/"},"modified":"2025-07-31T22:08:06","modified_gmt":"2025-07-31T14:08:06","slug":"%e5%a6%82%e4%bd%95%e5%9c%a8java%e4%b8%ad%e5%88%a0%e9%99%a4%e5%ad%97%e7%ac%a6%e4%b8%b2%e4%b8%ad%e7%9a%84%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%a6%82%e4%bd%95%e5%9c%a8java%e4%b8%ad%e5%88%a0%e9%99%a4%e5%ad%97%e7%ac%a6%e4%b8%b2%e4%b8%ad%e7%9a%84%e4%b8%80%e4%b8%aa%e5%ad%97%e7%ac%a6\/","title":{"rendered":"Java\u5b57\u7b26\u4e32\u5b57\u7b26\u5220\u9664\uff1a\u9ad8\u6548\u65b9\u6cd5\u4e0e\u5b9e\u7528\u6280\u5de7"},"content":{"rendered":"<h3>\u7b80\u4ecb<\/h3>\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u51e0\u79cd\u4e0d\u540c\u7684\u65b9\u5f0f\u6765\u4eceJava\u7684<code>String<\/code>\u5bf9\u8c61\u4e2d\u5220\u9664\u5b57\u7b26\u3002\u867d\u7136<code>String<\/code>\u7c7b\u6ca1\u6709<code>remove()<\/code>\u65b9\u6cd5\uff0c\u4f46\u662f\u60a8\u53ef\u4ee5\u4f7f\u7528<code>replace()<\/code>\u65b9\u6cd5\u7684\u53d8\u4f53\u548c<code>substring()<\/code>\u65b9\u6cd5\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26\u3002<\/p>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\"><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<div>\n<p>\u5b57\u7b26\u4e32\u5bf9\u8c61\u662f\u4e0d\u53ef\u53d8\u7684\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u5728\u521b\u5efa\u540e\u4e0d\u80fd\u66f4\u6539\u3002\u672c\u6587\u4ecb\u7ecd\u7684\u6240\u6709<code>String<\/code>\u7c7b\u65b9\u6cd5\u90fd\u4f1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684<code>String<\/code>\u5bf9\u8c61\uff0c\u800c\u4e0d\u4f1a\u6539\u53d8\u539f\u59cb\u5bf9\u8c61\u3002\u60a8\u4f7f\u7528\u7684\u5b57\u7b26\u4e32\u7c7b\u578b\u53d6\u51b3\u4e8e\u7a0b\u5e8f\u7684\u8981\u6c42\u3002\u4e86\u89e3\u6709\u5173\u5176\u4ed6\u7c7b\u578b\u7684\u5b57\u7b26\u4e32\u7c7b\u4ee5\u53caJava\u4e2d\u5b57\u7b26\u4e32\u4e3a\u4ec0\u4e48\u662f\u4e0d\u53ef\u53d8\u7684\u7684\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n<p><code>String<\/code>\u7c7b\u5177\u6709\u4ee5\u4e0b\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u6765\u66ff\u6362\u6216\u5220\u9664\u5b57\u7b26\uff1a<\/p>\n<ul class=\"post-ul\">\n<li><code>replace(char oldChar, char newChar)<\/code>: \u8fd4\u56de\u4e00\u4e2a\u65b0\u7684<code>String<\/code>\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5c06\u7ed9\u5b9a\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u51fa\u73b0\u7684<code>oldChar<\/code>\u66ff\u6362\u4e3a<code>newChar<\/code>\u3002\u60a8\u4e5f\u53ef\u4ee5\u4f7f\u7528<code>replace(CharSequence target, CharSequence replacement)<\/code>\u683c\u5f0f\u7684<code>replace()<\/code>\u65b9\u6cd5\uff0c\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684<code>String<\/code>\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u66ff\u6362\u7ed9\u5b9a\u5b57\u7b26\u4e32\u4e2d\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n<li><code>replaceFirst(String regex, String replacement)<\/code>: \u8fd4\u56de\u4e00\u4e2a\u65b0\u7684<code>String<\/code>\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5c06\u7ed9\u5b9a\u5b57\u7b26\u4e32\u4e2d\u7b2c\u4e00\u4e2a\u5339\u914d\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5b50\u5b57\u7b26\u4e32\u66ff\u6362\u4e3a<code>replacement<\/code>\u3002<\/li>\n<li><code>replaceAll(String regex, String replacement)<\/code>: \u8fd4\u56de\u4e00\u4e2a\u65b0\u7684<code>String<\/code>\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5c06\u7ed9\u5b9a\u5b57\u7b26\u4e32\u4e2d\u6bcf\u4e2a\u5339\u914d\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u5b50\u5b57\u7b26\u4e32\u66ff\u6362\u4e3a<code>replacement<\/code>\u3002<\/li>\n<li><code>substring(int start, int end)<\/code>: \u8fd4\u56de\u4e00\u4e2a\u65b0\u7684<code>String<\/code>\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5305\u542b\u5f53\u524d\u5e8f\u5217\u4e2d\u5b57\u7b26\u7684\u5b50\u5e8f\u5217\u3002\u5b50\u5b57\u7b26\u4e32\u4ece\u6307\u5b9a\u7684<code>start<\/code>\u7d22\u5f15\u5f00\u59cb\uff0c\u5e76\u5ef6\u4f38\u5230<code>end<\/code>\u7d22\u5f15\u51cf1\u5904\u7684\u5b57\u7b26\u3002<\/li>\n<\/ul>\n<p>\u8bf7\u6ce8\u610f\uff0c<code>replaceAll()<\/code>\u548c<code>replaceFirst()<\/code>\u65b9\u6cd5\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u4e00\u4e2a\u6b63\u5219\u8868\u8fbe\u5f0f\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u4ece\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u4e00\u4e2a\u6a21\u5f0f\u3002<\/p>\n<\/p><\/div>\n<\/div>\n<div class=\"post-conf-note\">\n<p class=\"post-conf-desc\"><strong>\u6ce8\u610f\uff1a<\/strong><\/p>\n<div>\n<p>\u5728\u4f7f\u7528<code>replace()<\/code>\u65b9\u6cd5\u65f6\uff0c\u5fc5\u987b\u4f7f\u7528\u53cc\u5f15\u53f7\u6765\u8868\u793a\u5b57\u9762\u5b57\u7b26\u4e32\u503c\u3002\u5982\u679c\u60a8\u4f7f\u7528\u5355\u5f15\u53f7\uff0c\u90a3\u4e48Java\u8fd0\u884c\u65f6\u73af\u5883\u4f1a\u8ba4\u4e3a\u60a8\u6b63\u5728\u6307\u5b9a\u4e00\u4e2a\u5b57\u7b26\u5e38\u91cf\uff0c\u8fd9\u4f1a\u5728\u60a8\u7f16\u8bd1\u7a0b\u5e8f\u65f6\u4ea7\u751f\u9519\u8bef\u3002<\/p>\n<\/p><\/div>\n<\/div>\n<h2>\u5728Java\u4e2d\u4ece\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u4e00\u4e2a\u5b57\u7b26<\/h2>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528Java\u4e2d\u7684<code>replace()<\/code>\u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u5b57\u7b26\u5b9e\u4f8b\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\uff0c\u4ece\u800c\u4ece\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u8be5\u5b57\u7b26\u3002\u4ee5\u4e0b\u793a\u4f8b\u4ee3\u7801\u5c06\u5220\u9664\u7ed9\u5b9a\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u5c0f\u5199\u5b57\u6bcd\u201ca\u201d\u7684\u51fa\u73b0\u6b21\u6570\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token class-name\">String<\/span> str <span class=\"token operator\">=<\/span> <span class=\"token string\">\"abc ABC 123 abc\"<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token class-name\">String<\/span> strNew <span class=\"token operator\">=<\/span> str<span class=\"token punctuation\">.<\/span><span class=\"token function\">replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"a\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>bc ABC 123 bc\r\n<\/code><\/pre>\n<h2>\u5728Java\u4e2d\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u7a7a\u683c<\/h2>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528Java\u4e2d\u7684<code>replace()<\/code>\u65b9\u6cd5\u5c06\u5b57\u7b26\u4e32\u4e2d\u7684\u7a7a\u683c\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\u6765\u53bb\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u7a7a\u683c\u3002\u4ee5\u4e0b\u793a\u4f8b\u4ee3\u7801\u4ece\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u4e2d\u79fb\u9664\u6240\u6709\u7a7a\u683c\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token class-name\">String<\/span> str <span class=\"token operator\">=<\/span> <span class=\"token string\">\"abc ABC 123 abc\"<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token class-name\">String<\/span> strNew <span class=\"token operator\">=<\/span> str<span class=\"token punctuation\">.<\/span><span class=\"token function\">replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\" \"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>abcABC123abc\r\n<\/code><\/pre>\n<h2>\u5728Java\u4e2d\u4ece\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u5b50\u5b57\u7b26\u4e32<\/h2>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528Java\u4e2d\u7684<code>replaceFirst()<\/code>\u65b9\u6cd5\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u5b57\u7b26\u6216\u5b50\u5b57\u7b26\u4e32\u7684\u7b2c\u4e00\u6b21\u51fa\u73b0\uff0c\u5c06\u5b57\u7b26\u6216\u5b50\u5b57\u7b26\u4e32\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u793a\u4f8b\u4ee3\u7801\u4ece\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u4e86\u201cab\u201d\u7684\u7b2c\u4e00\u6b21\u51fa\u73b0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token class-name\">String<\/span> str <span class=\"token operator\">=<\/span> <span class=\"token string\">\"abc ABC 123 abc\"<\/span><span class=\"token punctuation\">;<\/span>\r\n<span class=\"token class-name\">String<\/span> strNew <span class=\"token operator\">=<\/span> str<span class=\"token punctuation\">.<\/span><span class=\"token function\">replaceFirst<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"ab\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>c ABC 123 abc\r\n<\/code><\/pre>\n<h2>\u4eceJava\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u6240\u6709\u5c0f\u5199\u5b57\u6bcd\u3002<\/h2>\n<p>\u8fd9\u662f\u6587\u7ae0\u300a\u5982\u4f55\u5728Java\u4e2d\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7684\u4e00\u4e2a\u5b57\u7b26\u300b\u7684\u7b2c2\u90e8\u5206\uff08\u51714\u90e8\u5206\uff09\u3002<\/p>\n<p>\u4f60\u53ef\u4ee5\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u6765\u5220\u9664\u7b26\u5408\u7ed9\u5b9a\u6a21\u5f0f\u7684\u5b57\u7b26\u3002\u5728Java\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528<code>replaceAll()<\/code>\u65b9\u6cd5\u5c06\u8fd9\u4e9b\u5b57\u7b26\u66ff\u6362\u4e3a\u7a7a\u5b57\u7b26\u4e32\u3002\u4e0b\u9762\u7684\u793a\u4f8b\u4ee3\u7801\u4ece\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u6240\u6709\u5c0f\u5199\u5b57\u6bcd\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token class-name\">String<\/span> str <span class=\"token operator\">=<\/span> <span class=\"token string\">\"abc ABC 123 abc\"<\/span>;\r\n<span class=\"token class-name\">String<\/span> strNew <span class=\"token operator\">=<\/span> str.<span class=\"token function\">replaceAll<\/span>(<span class=\"token string\">\"([a-z])\"<\/span>, <span class=\"token string\">\"\"<\/span>);\r\n<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>ABC 123<\/code><\/pre>\n<h2>\u5728Java\u4e2d\u5220\u9664\u5b57\u7b26\u4e32\u7684\u6700\u540e\u4e00\u4e2a\u5b57\u7b26<\/h2>\n<p>\u6ca1\u6709\u7279\u5b9a\u7684\u65b9\u6cd5\u53ef\u4ee5\u76f4\u63a5\u66ff\u6362\u6216\u5220\u9664\u5b57\u7b26\u4e32\u7684\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\uff0c\u4f46\u662f\u4f60\u53ef\u4ee5\u4f7f\u7528<code>String substring()<\/code>\u65b9\u6cd5\u6765\u622a\u53d6\u5b57\u7b26\u4e32\u3002\u4ee5\u4e0b\u793a\u4f8b\u4ee3\u7801\u4ece\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"token class-name\">String<\/span> str <span class=\"token operator\">=<\/span> <span class=\"token string\">\"abc ABC 123 abc\"<\/span>;\r\n<span class=\"token class-name\">String<\/span> strNew <span class=\"token operator\">=<\/span> str.<span class=\"token function\">substring<\/span>(<span class=\"token number\">0<\/span>, str.<span class=\"token function\">length<\/span>() - <span class=\"token number\">1<\/span>);\r\n<\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"Output\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code>abc ABC 123 ab<\/code><\/pre>\n<h2>\u5c1d\u8bd5\u4ee5\u4e0b\u793a\u4f8b<\/h2>\n<p>\u4e0b\u9762\u7684\u793a\u4f8b\u6587\u4ef6\u5b9a\u4e49\u4e86\u4e00\u4e2a\u7c7b\uff0c\u5176\u4e2d\u5305\u542b\u672c\u6587\u63d0\u4f9b\u7684\u6240\u6709\u65b9\u6cd5\u793a\u4f8b\uff0c\u5e76\u5728\u5bf9\u7ed9\u5b9a\u5b57\u7b26\u4e32\u8c03\u7528\u6bcf\u4e2a\u65b9\u6cd5\u540e\u6253\u5370\u51fa\u7ed3\u679c\u3002\u4f60\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u793a\u4f8b\u4ee3\u7801\u5728\u4e0d\u540c\u7684\u5b57\u7b26\u4e32\u4e0a\u5c1d\u8bd5\u4e0d\u540c\u7684\u5339\u914d\u6a21\u5f0f\u548c\u66ff\u6362\u503c\u3002<\/p>\n<p>\u5982\u679c\u4f60\u5df2\u7ecf\u5b89\u88c5\u4e86Java\uff0c\u4f60\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a<code>JavaStringRemove.java<\/code>\u7684\u65b0\u6587\u4ef6\uff0c\u5e76\u5c06\u4ee5\u4e0b\u4ee3\u7801\u6dfb\u52a0\u5230\u6587\u4ef6\u4e2d\uff1a<\/p>\n<div>JavaStringRemove.java<\/div>\n<pre class=\"post-pre\"><code>\r\n<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">class<\/span> <span class=\"token class-name\">JavaStringRemove<\/span> <span class=\"token punctuation\">{<\/span>\r\n\r\n\t<span class=\"token keyword\">public<\/span> <span class=\"token keyword\">static<\/span> <span class=\"token keyword\">void<\/span> <span class=\"token function\">main<\/span><span class=\"token punctuation\">(<\/span><span class=\"token class-name\">String<\/span><span class=\"token punctuation\">[<\/span><span class=\"token punctuation\">]<\/span> args<span class=\"token punctuation\">)<\/span> <span class=\"token punctuation\">{<\/span>\r\n    \t<span class=\"token class-name\">String<\/span> str <span class=\"token operator\">=<\/span> <span class=\"token string\">\"abc ABC 123 abc\"<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\t\t<span class=\"token comment\">\/\/ \u4eceJava\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u4e00\u4e2a\u5b57\u7b26<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5220\u9664\u6240\u6709'a'\u5b57\u7b26\u540e\u7684\u5b57\u7b26\u4e32 = \"<\/span><span class=\"token operator\">+<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"a\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\t\t<span class=\"token comment\">\/\/ \u4eceJava\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u7a7a\u683c<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5220\u9664\u6240\u6709\u7a7a\u683c\u540e\u7684\u5b57\u7b26\u4e32 = \"<\/span><span class=\"token operator\">+<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">replace<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\" \"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\t\t<span class=\"token comment\">\/\/ \u4eceJava\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u4e00\u4e2a\u5b50\u5b57\u7b26\u4e32\t<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5220\u9664\u7b2c\u4e00\u4e2a'ab'\u5b50\u5b57\u7b26\u4e32\u540e\u7684\u5b57\u7b26\u4e32 = \"<\/span><span class=\"token operator\">+<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">replaceFirst<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"ab\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\t\t<span class=\"token comment\">\/\/ \u4eceJava\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u6240\u6709\u5c0f\u5199\u5b57\u6bcd<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5220\u9664\u6240\u6709\u5c0f\u5199\u5b57\u6bcd\u540e\u7684\u5b57\u7b26\u4e32 = \"<\/span><span class=\"token operator\">+<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">replaceAll<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"([a-z])\"<\/span><span class=\"token punctuation\">,<\/span> <span class=\"token string\">\"\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\r\n\t\t<span class=\"token comment\">\/\/ \u4eceJava\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u6700\u540e\u4e00\u4e2a\u5b57\u7b26<\/span>\r\n\t\t<span class=\"token class-name\">System<\/span><span class=\"token punctuation\">.<\/span>out<span class=\"token punctuation\">.<\/span><span class=\"token function\">println<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\u5220\u9664\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u540e\u7684\u5b57\u7b26\u4e32 = \"<\/span><span class=\"token operator\">+<\/span>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">substring<\/span><span class=\"token punctuation\">(<\/span><span class=\"token number\">0<\/span><span class=\"token punctuation\">,<\/span> str<span class=\"token punctuation\">.<\/span><span class=\"token function\">length<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token operator\">-<\/span><span class=\"token number\">1<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\r\n\t<span class=\"token punctuation\">}<\/span>\r\n\r\n<span class=\"token punctuation\">}<\/span>\r\n<\/code><\/pre>\n<p>\u7f16\u8bd1\u5e76\u8fd0\u884c\u7a0b\u5e8f\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<ol>\n<li data-prefix=\"$\">javac JavaStringRemove.java<\/li>\n<li data-prefix=\"$\"><span class=\"token function\">java<\/span> JavaStringRemove<\/li>\n<\/ol>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>&nbsp;<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u60a8\u5c06\u83b7\u5f97\u4ee5\u4e0b\u8f93\u51fa\u7ed3\u679c\u3002<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<div class=\"secondary-code-label\" title=\"\u8f93\u51fa\">\u8f93\u51fa<\/div>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u79fb\u9664\u6240\u6709&#8217;a&#8217;\u540e\u7684\u5b57\u7b26\u4e32 = bc ABC 123 bc<\/p>\n<p>\u79fb\u9664\u6240\u6709\u7a7a\u683c\u540e\u7684\u5b57\u7b26\u4e32 = abcABC123abc<\/p>\n<p>\u79fb\u9664\u7b2c\u4e00\u4e2a&#8217;ab&#8217;\u5b50\u4e32\u540e\u7684\u5b57\u7b26\u4e32 = c ABC 123 abc<\/p>\n<p>\u79fb\u9664\u6240\u6709\u5c0f\u5199\u5b57\u6bcd\u540e\u7684\u5b57\u7b26\u4e32 = ABC 123<\/p>\n<p>\u79fb\u9664\u6700\u540e\u4e00\u4e2a\u5b57\u7b26\u540e\u7684\u5b57\u7b26\u4e32 = abc ABC 123 ab<\/p>\n<pre class=\"post-pre\"><code><\/code><\/pre>\n<p>\u5728<code>JavaStringRemove<\/code>\u793a\u4f8b\u7c7b\u4e2d\uff0c\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u5bf9\u7ed9\u5b9a\u7684\u5b57\u7b26\u4e32\u8fdb\u884c\u64cd\u4f5c\u3002\u8f93\u51fa\u7ed3\u679c\u6e05\u6670\u5730\u5c55\u793a\u4e86\u5728\u6bcf\u4e2a\u65b9\u6cd5\u4e2d\uff0c\u6307\u5b9a\u7684\u5b57\u7b26\u5df2\u6210\u529f\u4ece\u5b57\u7b26\u4e32\u4e2d\u5220\u9664\u3002<\/p>\n<h2>\u7ed3\u8bba<\/h2>\n<p>\u901a\u8fc7\u672c\u6587\uff0c\u60a8\u5b66\u4e60\u4e86\u5728Java\u4e2d\u5229\u7528<code>String<\/code>\u7c7b\u7684\u65b9\u6cd5\u6765\u5220\u9664\u5b57\u7b26\u4e32\u4e2d\u7279\u5b9a\u5b57\u7b26\u7684\u5404\u79cd\u6280\u5de7\uff0c\u5305\u62ec\u4f7f\u7528<code>replace()<\/code>\u3001<code>replaceAll()<\/code>\u3001<code>replaceFirst()<\/code>\u548c<code>substring()<\/code>\u3002\u8bf7\u7ee7\u7eed\u5173\u6ce8\u5e76\u5b66\u4e60\u66f4\u591aJava\u6559\u7a0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u4ecb \u5728\u672c\u6587\u4e2d\uff0c\u60a8\u5c06\u5b66\u4e60\u51e0\u79cd\u4e0d\u540c\u7684\u65b9\u5f0f\u6765\u4eceJava\u7684String\u5bf9\u8c61\u4e2d\u5220\u9664\u5b57\u7b26\u3002\u867d\u7136String\u7c7b\u6ca1\u6709remo [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[189,232,190,375,184],"class_list":{"0":"post-54","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"hentry","6":"category-uncategorized","7":"tag-java","9":"tag-190","10":"tag-375","11":"tag-184"},"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>Java\u5b57\u7b26\u4e32\u5b57\u7b26\u5220\u9664\uff1a\u9ad8\u6548\u65b9\u6cd5\u4e0e\u5b9e\u7528\u6280\u5de7 - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" 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