{"id":523,"date":"2023-09-16T15:39:10","date_gmt":"2023-09-16T07:39:10","guid":{"rendered":""},"modified":"2023-09-17T00:42:13","modified_gmt":"2023-09-16T16:42:13","slug":"java%e7%ae%80%e5%8d%95%e7%9a%84%e6%ad%a3%e5%88%99%e8%a1%a8%e8%be%be%e5%bc%8f%e5%8c%b9%e9%85%8d%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/mushiming.com\/523.html","title":{"rendered":"Java\u7b80\u5355\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u64cd\u4f5c"},"content":{"rendered":"<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"display: none;\"> \n <path stroke-linecap=\"round\" d=\"M5,0 0,2.5 5,5z\" id=\"raphael-marker-block\" style=\"-webkit-tap-highlight-color: rgba(0, 0, 0, 0);\"><\/path> \n<\/svg> <\/p>\n<h2><strong>\u7b80\u5355\u5730\u5229\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u5339\u914d\u64cd\u4f5c<\/strong><\/h2>\n<pre class=\"language-java prettyprint linenums\"><code>\u8981\u660e\u786e\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u7528\u6765\u65b9\u4fbf\u5730\u5339\u914d\u5b57\u7b26\u4e32\u7684\n<\/code><\/pre>\n<h4>1. \u9996\u5148\u8981\u521b\u5efa\u4e00\u4e2a\u5339\u914d\u6a21\u5f0f<\/h4>\n<h6>\u4e00\u4e2a\u5339\u914d\u6a21\u5f0f\u5c31\u662f\u4e00\u4e2a\u5bf9\u8c61\uff0c\u8fd9\u4e2a\u5bf9\u8c61\u7531Pattern\u7c7b\u6765\u5e2e\u6211\u4eec\u9020\u8981\u6ce8\u610fPattern\u7684\u6784\u9020\u65b9\u6cd5\u662f\u79c1\u6709\u7684\uff0c\u6240\u4ee5\u6ca1\u529e\u6cd5\u76f4\u63a5new\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u5b83\u7684\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5compile()\u6765\u521b\u5efa\u3002<\/h6>\n<h6>Pattern\u91cc\u8fd8\u6709\u4e00\u4e2amatcher\u65b9\u6cd5\uff0c\u8fd4\u56de\u4e00\u4e2aMatcher\u7684\u5bf9\u8c61\uff0c\u8be5\u65b9\u6cd5\u7684\u53c2\u6570\u662f\u4e00\u4e2a\u4f60\u60f3\u5339\u914d\u7684\u90a3\u4e2a\u5b57\u7b26\u4e32\u3002\u8be6\u7ec6\u89c1\u4e0b\u6587Matcher\u3002<\/h6>\n<h6>\u521b\u5efa\u4e00\u4e2a\u5339\u914d\u6570\u5b57\u5b57\u7b26\u7684\u6a21\u5f0f\uff1a<\/h6>\n<pre class=\"language-java prettyprint linenums\"><code class=\"prism language-java\"><span class=\"token class-name\">Pattern<\/span> pattern <span class=\"token operator\">=<\/span> <span class=\"token class-name\">Pattern<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\\\\d+\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u521b\u5efa\u5339\u914d\u6570\u5b57\u5b57\u7b26\u7684\u6a21\u5f0f<\/span>\n<\/code><\/pre>\n<pre class=\"language-java prettyprint linenums\"><code>\u5339\u914d\u6a21\u5f0f\u7684\u610f\u601d\u5c31\u662f\u4e00\u4e2a\u6a21\u677f\uff0c\u7528\u51e0\u4e2a\u7b26\u53f7\u8868\u793a\u4f60\u60f3\u5339\u914d\u7684\u4e1c\u897f\uff0c\u5c31\u53eb\u505a\u5339\u914d\u6a21\u5f0f\u3002\n\t\t\n\t\u4f8b\u5982\uff1a\n\t\t\n\t\\\\d+\uff0c\u4ee3\u8868\u5339\u914d\u4e00\u4e2a\u6216\u591a\u4e2a\u5b57\u7b26\uff0c\u5176\u4e2d\u2018\\d\u2019\u4ee3\u8868\u5339\u914d\u6570\u5b57\uff0c\u7b49\u6548\u4e8e[0-9]\u3002\n\t\n\t\u53cd\u659c\u6760\u7528\u6765\u8f6c\u4e49\uff0c\u56e0\u4e3a\\d\u672c\u8eab\u6709\u7279\u6b8a\u7684\u542b\u4e49\uff0c\u6240\u4ee5\u8ba9\u6700\u524d\u9762\n\t\u7684\u90a3\u4e2a\u53cd\u659c\u6760\u5c06\u7b2c\u4e8c\u4e2a\u53cd\u659c\u6760\u53d8\u4e3a\u4e00\u4e2a\u5b57\u7b26'\\'\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u4f7f\\d\u662f\u4e00\u4e2a\u7b26\u53f7\u4e86\n\t\n\t\u2019+\u2018\u4ee3\u8868\u5339\u914d\u524d\u9762\u7684\u5b57\u7b26\u6216\u5b50\u8868\u8fbe\u5f0f\u4e00\u6b21\u6216\u591a\u6b21\uff0c\u6bd4\u5982\uff1a\"wsx+\"\u53ef\u4ee5\u548c\n\t\"wsxw\"\u3001\"wsx\"\u3001\"swsxx\"\u7b49\u7b49\u5339\u914d\uff0c\u4e0d\u53ef\u4ee5\u548c\"ws\"\u3001\"sxw\"\u7b49\u7b49\u5339\u914d\n<\/code><\/pre>\n<h4>2. \u63a5\u4e0b\u6765\u5c31\u662f\u9009\u62e9\u5339\u914d\u7684\u5bf9\u8c61(\u5b57\u7b26\u4e32)<\/h4>\n<pre class=\"language-java prettyprint linenums\"><code>\u6211\u4eec\u4f1a\u7528\u5230\u5de5\u5177\u7c7bMatcher\uff0c\u4e2d\u6587\u5c31\u662f\u5339\u914d\u7684\u610f\u601d\u3002\n\nMatcher\u7684\u4e00\u4e2a\u5b9e\u4f8b\u4ee3\u8868\u4e00\u4e2a\u7528\u6765\u64cd\u4f5c\u5339\u914d\u5b57\u7b26\u4e32\u7684\u5bf9\u8c61\u3002\n\nMatcher\u5e38\u7528\u7684\u65b9\u6cd5\u6709find()\u3001start()\u3001end()\n\n\t&lt;1&gt; find()\u7528\u4e8e\u67e5\u627e\u662f\u5426\u6709\u60f3\u627e\u7684\u90a3\u4e2a\u5b57\u7b26\uff0c\u6709\u7684\u8bdd\u8fd4\u56detrue\n\t&lt;2&gt; start()\u8fd4\u56de\u4e0a\u4e00\u4e2a\u5339\u914d\u9879\u7684\u8d77\u59cb\u7d22\u5f15\n\t&lt;3&gt; end()\u8fd4\u56de\u4e0a\u4e00\u4e2a\u5339\u914d\u9879\u7684\u672b\u5c3e\u7d22\u5f15\n\t\n\t\u8fd9\u4e09\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4e0e\u5faa\u73af\u7ed3\u5408\u8d77\u6765\uff0c\u6ca1\u6709\u5339\u914d\u7684\u8bdd\u5b83\u4f1a\u81ea\u52a8\u8fed\u4ee3\uff0c\u7ee7\u7eed\u5f80\u4e0b\u627e\uff0c\n\u76f4\u81f3\u5339\u914d\u7ed3\u675f\u3002\n<\/code><\/pre>\n<h4>3. \u63a5\u4e0b\u6765\u5c31\u662f\u53bb\u6267\u884c\u5339\u914d\u64cd\u4f5c<\/h4>\n<h6>\u7531\u4e8efind()\u8fd4\u56de\u4e00\u4e2a\u5e03\u5c14\u503c\uff0c\u6240\u4ee5\u6211\u4eec\u53ef\u4ee5\u628a\u5b83\u76f4\u63a5\u5f53\u4f5cwhile\u7684\u6761\u4ef6\u3002<\/h6>\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u4ece\u5b57\u7b26\u4e32\u4e2d\u83b7\u5f97\u6570\u5b57\u7684\u4e00\u4e2a\u5b9e\u4f8b\uff1a<\/p>\n<pre><code class=\"prism language-java\"><span class=\"token class-name\">String<\/span> str <span class=\"token operator\">=<\/span> <span class=\"token string\">\"cheems123cheems456cheems789\"<\/span><span class=\"token punctuation\">;<\/span>\n\n\n<span class=\"token comment\">\/\/1.\u521b\u5efa\u5339\u914d\u6a21\u5f0f<\/span>\n<span class=\"token class-name\">Pattern<\/span> pattern <span class=\"token operator\">=<\/span> <span class=\"token class-name\">Pattern<\/span><span class=\"token punctuation\">.<\/span><span class=\"token function\">compile<\/span><span class=\"token punctuation\">(<\/span><span class=\"token string\">\"\\\\d+\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span><span class=\"token comment\">\/\/\u5339\u914d\u4e00\u4e2a\u6216\u591a\u4e2a\u6570\u5b57\u5b57\u7b26<\/span>\n\n<span class=\"token comment\">\/\/2.\u9009\u62e9\u5339\u914d\u5bf9\u8c61<\/span>\n<span class=\"token class-name\">Matcher<\/span> matcher <span class=\"token operator\">=<\/span> pattern<span class=\"token punctuation\">.<\/span><span class=\"token function\">matcher<\/span><span class=\"token punctuation\">(<\/span>str<span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token comment\">\/\/\u4e0e\u8c01\u5339\u914d\uff1f\u4e0e\u53c2\u6570\u5b57\u7b26\u4e32str\u5339\u914d<\/span>\n\n\n<span class=\"token keyword\">int<\/span> count <span class=\"token operator\">=<\/span> <span class=\"token number\">0<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token keyword\">while<\/span> <span class=\"token punctuation\">(<\/span>matcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">find<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token comment\">\/\/matcher.find()\u7528\u4e8e\u67e5\u627e\u662f\u5426\u6709\u8fd9\u4e2a\u5b57\u7b26\uff0c\u6709\u7684\u8bdd\u8fd4\u56detrue<\/span>\n<span class=\"token punctuation\">{ \n   <!-- --><\/span>\n\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\">\"\u7b2c\"<\/span> <span class=\"token operator\">+<\/span> <span class=\"token punctuation\">(<\/span><span class=\"token operator\">++<\/span>count<span class=\"token punctuation\">)<\/span> <span class=\"token operator\">+<\/span> <span class=\"token string\">\"\u6b21\u627e\u5230\"<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n\t  <span class=\"token comment\">\/\/start()\u8fd4\u56de\u4e0a\u4e00\u4e2a\u5339\u914d\u9879\u7684\u8d77\u59cb\u7d22\u5f15<\/span>\n\t  <span class=\"token comment\">\/\/end()\u8fd4\u56de\u4e0a\u4e00\u4e2a\u5339\u914d\u9879\u7684\u672b\u5c3e\u7d22\u5f15\u3002<\/span>\n  \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>str<span class=\"token punctuation\">.<\/span><span class=\"token function\">substring<\/span><span class=\"token punctuation\">(<\/span>matcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">start<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">,<\/span>matcher<span class=\"token punctuation\">.<\/span><span class=\"token function\">end<\/span><span class=\"token punctuation\">(<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">)<\/span><span class=\"token punctuation\">;<\/span>\n<span class=\"token punctuation\">}<\/span>\n<\/code><\/pre>\n<p>\u7ed3\u679c\uff1a<br \/> <img decoding=\"async\" src=\"https:\/\/img.mushiming.top\/app\/common_img\/afa2772b362043f7a3b8dddb97d525a3.png\" =\"\" =\"\u53ef\u4ee5\u770b\u5230\u5df2\u7ecf\u5339\u914d\u5230\u4e86\u6211\u4eec\u60f3\u8981\u7684\u4e1c\u897f\uff1a\u6570\u5b57\" alt=\"Java\u7b80\u5355\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u64cd\u4f5c (https:\/\/mushiming.com\/) \u6280\u672f\u535a\u5ba2 \u7b2c1\u5f20\" title=\"Java\u7b80\u5355\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u64cd\u4f5c \u6280\u672f\u535a\u5ba2 \u7b2c1\u5f20-\u7a46\u4e16\u660e\u535a\u5ba2\" ><\/p>\n<p>\u7531\u4e8e\u662f\u521d\u5b66\u8005\uff0c\u5982\u6709\u9519\u8bef\u8bf7\u5927\u529b\u6307\u51fa\uff0c\u6211\u4e00\u5b9a\u865a\u5fc3\u63a5\u53d7<\/p>\n<p>\u53c2\u8003\uff1aJava\u7b80\u5355\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u64cd\u4f5c<\/p>\n","protected":false},"excerpt":{"rendered":"Java\u7b80\u5355\u7684\u6b63\u5219\u8868\u8fbe\u5f0f\u5339\u914d\u64cd\u4f5c\u7b80\u5355\u5730\u5229\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u8fdb\u884c\u5339\u914d\u64cd\u4f5c\u8981\u660e\u786e\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u7528\u6765\u65b9\u4fbf\u5730\u5339\u914d\u5b57\u7b26\u4e32\u76841.\u9996\u5148\u8981\u521b\u5efa\u4e00...","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[82],"tags":[],"_links":{"self":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/523"}],"collection":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/comments?post=523"}],"version-history":[{"count":0,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/posts\/523\/revisions"}],"wp:attachment":[{"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/media?parent=523"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/categories?post=523"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mushiming.com\/wp-json\/wp\/v2\/tags?post=523"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}