{"id":2129,"date":"2025-02-28T23:59:43","date_gmt":"2025-02-28T15:59:43","guid":{"rendered":"https:\/\/www.laixuexila.com\/?p=2129"},"modified":"2025-02-28T23:59:43","modified_gmt":"2025-02-28T15:59:43","slug":"javascript-%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%88string%ef%bc%89-%e5%af%b9%e8%b1%a1","status":"publish","type":"post","link":"https:\/\/www.laixuexila.com\/index.php\/2025\/02\/28\/javascript-%e5%ad%97%e7%ac%a6%e4%b8%b2%ef%bc%88string%ef%bc%89-%e5%af%b9%e8%b1%a1\/","title":{"rendered":"JavaScript\u00a0\u5b57\u7b26\u4e32\uff08String\uff09\u00a0\u5bf9\u8c61"},"content":{"rendered":"\n<p>\u5728 JavaScript \u4e2d\uff0c<strong>\u5b57\u7b26\u4e32\uff08String\uff09<\/strong> \u662f\u4e00\u79cd\u539f\u59cb\u6570\u636e\u7c7b\u578b\uff0c\u7528\u4e8e\u8868\u793a\u6587\u672c\u6570\u636e\u3002\u9664\u4e86\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\uff08\u4f8b\u5982 <code>\"Hello\"<\/code> \u6216 <code>'World'<\/code>\uff09\u5916\uff0cJavaScript \u8fd8\u63d0\u4f9b\u4e86 <code>String<\/code> \u5bf9\u8c61\u6765\u5904\u7406\u5b57\u7b26\u4e32\u7684\u76f8\u5173\u65b9\u6cd5\u548c\u5c5e\u6027\u3002\u4e0e\u5927\u591a\u6570 JavaScript \u539f\u59cb\u7c7b\u578b\u4e0d\u540c\uff0c<code>String<\/code> \u5bf9\u8c61\u63d0\u4f9b\u4e86\u8bb8\u591a\u53ef\u4ee5\u8c03\u7528\u7684\u65b9\u6cd5\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. <strong>\u521b\u5efa\u5b57\u7b26\u4e32\u5bf9\u8c61<\/strong><\/h3>\n\n\n\n<p>\u5b57\u7b26\u4e32\u53ef\u4ee5\u76f4\u63a5\u901a\u8fc7\u5b57\u9762\u91cf\u521b\u5efa\uff0c\u6216\u8005\u901a\u8fc7 <code>String<\/code> \u6784\u9020\u51fd\u6570\u521b\u5efa\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/ \u5b57\u9762\u91cf\u65b9\u5f0f\u521b\u5efa\u5b57\u7b26\u4e32\nconst str1 = \"Hello, World!\";\nconst str2 = 'JavaScript';\n\n\/\/ \u4f7f\u7528 String \u6784\u9020\u51fd\u6570\u521b\u5efa\u5b57\u7b26\u4e32\u5bf9\u8c61\nconst str3 = new String(\"Hello, JavaScript!\");\nconsole.log(str3);  \/\/ \u8f93\u51fa\uff1aString { 'Hello, JavaScript!' }<\/code><\/pre>\n\n\n\n<p><strong>\u6ce8\u610f<\/strong>\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\uff08\u4f8b\u5982 <code>\"Hello\"<\/code>\uff09\u662f\u539f\u59cb\u7c7b\u578b\uff08primitive\uff09\u3002<\/li>\n\n\n\n<li>\u4f7f\u7528 <code>new String()<\/code> \u521b\u5efa\u7684\u5bf9\u8c61\u662f <code>String<\/code> \u7c7b\u578b\u7684\u5bf9\u8c61\uff08\u5bf9\u8c61\u5c01\u88c5\u7c7b\u578b\uff09\uff0c\u800c\u4e14\u5177\u6709\u5bf9\u8c61\u7684\u7279\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. <strong>String \u7684\u9759\u6001\u5c5e\u6027\u548c\u65b9\u6cd5<\/strong><\/h3>\n\n\n\n<h4 class=\"wp-block-heading\">\u9759\u6001\u5c5e\u6027<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>String.length<\/code>\uff1a\u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u5b57\u7b26\u6570\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const str = \"Hello\";\nconsole.log(str.length);  \/\/ \u8f93\u51fa\uff1a5<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">\u9759\u6001\u65b9\u6cd5<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>String.fromCharCode()<\/code>\uff1a\u63a5\u53d7\u4e00\u7cfb\u5217 Unicode \u503c\u5e76\u8fd4\u56de\u5bf9\u5e94\u5b57\u7b26\u7684\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(String.fromCharCode(65, 66, 67));  \/\/ \u8f93\u51fa\uff1a\"ABC\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>String.fromCodePoint()<\/code>\uff1a\u63a5\u53d7\u4e00\u7cfb\u5217 Unicode \u4ee3\u7801\u70b9\u5e76\u8fd4\u56de\u5bf9\u5e94\u5b57\u7b26\u7684\u5b57\u7b26\u4e32\u3002\u9002\u7528\u4e8e\u8d85\u51fa <code>fromCharCode<\/code> \u8303\u56f4\u7684\u5b57\u7b26\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(String.fromCodePoint(0x1F600));  \/\/ \u8f93\u51fa\uff1a \"\ud83d\ude00\"<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">3. <strong>String \u7684\u5b9e\u4f8b\u65b9\u6cd5<\/strong><\/h3>\n\n\n\n<p>\u5b57\u7b26\u4e32\u5bf9\u8c61\u63d0\u4f9b\u4e86\u5f88\u591a\u6709\u7528\u7684\u65b9\u6cd5\u6765\u64cd\u4f5c\u548c\u5904\u7406\u5b57\u7b26\u4e32\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">3.1 <strong>\u5b57\u7b26\u63d0\u53d6\u548c\u67e5\u627e\u65b9\u6cd5<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>charAt(index)<\/code>\uff1a\u8fd4\u56de\u6307\u5b9a\u4f4d\u7f6e\u7684\u5b57\u7b26\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const str = \"Hello, World!\";\nconsole.log(str.charAt(0));  \/\/ \u8f93\u51fa\uff1a \"H\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>charCodeAt(index)<\/code>\uff1a\u8fd4\u56de\u6307\u5b9a\u4f4d\u7f6e\u5b57\u7b26\u7684 Unicode \u7f16\u7801\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.charCodeAt(0));  \/\/ \u8f93\u51fa\uff1a72\uff08H \u7684 Unicode \u7f16\u7801\uff09<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>indexOf(searchValue, fromIndex)<\/code>\uff1a\u8fd4\u56de <code>searchValue<\/code> \u7b2c\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\uff0c\u5982\u679c\u672a\u627e\u5230\u5219\u8fd4\u56de <code>-1<\/code>\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.indexOf(\"World\"));  \/\/ \u8f93\u51fa\uff1a7\nconsole.log(str.indexOf(\"Java\"));   \/\/ \u8f93\u51fa\uff1a-1<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>lastIndexOf(searchValue, fromIndex)<\/code>\uff1a\u8fd4\u56de <code>searchValue<\/code> \u6700\u540e\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const str2 = \"Hello, World! Hello!\";\nconsole.log(str2.lastIndexOf(\"Hello\"));  \/\/ \u8f93\u51fa\uff1a14<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">3.2 <strong>\u5b57\u7b26\u4e32\u5207\u5272\u548c\u66ff\u6362<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>slice(beginIndex, endIndex)<\/code>\uff1a\u63d0\u53d6\u5b57\u7b26\u4e32\u7684\u4e00\u4e2a\u5b50\u5b57\u7b26\u4e32\uff0c\u8fd4\u56de\u65b0\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.slice(0, 5));  \/\/ \u8f93\u51fa\uff1a \"Hello\"\nconsole.log(str.slice(7));     \/\/ \u8f93\u51fa\uff1a \"World!\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>substring(beginIndex, endIndex)<\/code>\uff1a\u8fd4\u56de\u4e24\u4e2a\u7d22\u5f15\u4e4b\u95f4\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.substring(0, 5));  \/\/ \u8f93\u51fa\uff1a \"Hello\"\nconsole.log(str.substring(7, 12)); \/\/ \u8f93\u51fa\uff1a \"World\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>substr(startIndex, length)<\/code>\uff1a\u8fd4\u56de\u4ece <code>startIndex<\/code> \u5f00\u59cb\u6307\u5b9a\u957f\u5ea6\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.substr(7, 5));  \/\/ \u8f93\u51fa\uff1a \"World\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>replace(searchValue, newValue)<\/code>\uff1a\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u7b2c\u4e00\u4e2a\u5339\u914d\u7684\u5185\u5bb9\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.replace(\"World\", \"JavaScript\"));  \/\/ \u8f93\u51fa\uff1a \"Hello, JavaScript!\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>replaceAll(searchValue, newValue)<\/code>\uff1a\u66ff\u6362\u5b57\u7b26\u4e32\u4e2d\u6240\u6709\u5339\u914d\u7684\u5185\u5bb9\uff08ES2021 \u5f15\u5165\uff09\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str2.replaceAll(\"Hello\", \"Hi\"));  \/\/ \u8f93\u51fa\uff1a \"Hi, World! Hi!\"<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">3.3 <strong>\u5b57\u7b26\u4e32\u5927\u5c0f\u5199\u8f6c\u6362<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>toLowerCase()<\/code>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5c0f\u5199\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.toLowerCase());  \/\/ \u8f93\u51fa\uff1a \"hello, world!\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>toUpperCase()<\/code>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.toUpperCase());  \/\/ \u8f93\u51fa\uff1a \"HELLO, WORLD!\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>toLocaleLowerCase()<\/code> \u548c <code>toLocaleUpperCase()<\/code>\uff1a\u6839\u636e\u533a\u57df\u8bbe\u7f6e\u8f6c\u6362\u5927\u5c0f\u5199\u3002<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">3.4 <strong>\u4fee\u526a\u548c\u586b\u5145<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>trim()<\/code>\uff1a\u53bb\u9664\u5b57\u7b26\u4e32\u4e24\u7aef\u7684\u7a7a\u683c\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const str3 = \"   Hello, World!   \";\nconsole.log(str3.trim());  \/\/ \u8f93\u51fa\uff1a \"Hello, World!\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>padStart(targetLength, padString)<\/code>\uff1a\u5728\u5b57\u7b26\u4e32\u524d\u9762\u586b\u5145\u6307\u5b9a\u5b57\u7b26\uff0c\u76f4\u5230\u8fbe\u5230\u6307\u5b9a\u957f\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(\"5\".padStart(3, \"0\"));  \/\/ \u8f93\u51fa\uff1a \"005\"<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>padEnd(targetLength, padString)<\/code>\uff1a\u5728\u5b57\u7b26\u4e32\u540e\u9762\u586b\u5145\u6307\u5b9a\u5b57\u7b26\uff0c\u76f4\u5230\u8fbe\u5230\u6307\u5b9a\u957f\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(\"5\".padEnd(3, \"0\"));  \/\/ \u8f93\u51fa\uff1a \"500\"<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">3.5 <strong>\u5b57\u7b26\u4e32\u5206\u5272\u4e0e\u8fde\u63a5<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>split(separator, limit)<\/code>\uff1a\u5c06\u5b57\u7b26\u4e32\u5206\u5272\u6210\u4e00\u4e2a\u6570\u7ec4\uff0c\u5206\u9694\u7b26\u53ef\u4ee5\u662f\u5b57\u7b26\u4e32\u6216\u6b63\u5219\u8868\u8fbe\u5f0f\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const str4 = \"apple,banana,orange\";\nconst fruits = str4.split(\",\");\nconsole.log(fruits);  \/\/ \u8f93\u51fa\uff1a &#91;\"apple\", \"banana\", \"orange\"]<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>concat(string2, string3, ...)<\/code>\uff1a\u8fde\u63a5\u4e24\u4e2a\u6216\u66f4\u591a\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>const str5 = \"Hello\";\nconst str6 = \" World!\";\nconsole.log(str5.concat(str6));  \/\/ \u8f93\u51fa\uff1a \"Hello World!\"<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">3.6 <strong>\u5b57\u7b26\u4e32\u7684\u5176\u5b83\u65b9\u6cd5<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>includes(searchValue)<\/code>\uff1a\u5224\u65ad\u5b57\u7b26\u4e32\u4e2d\u662f\u5426\u5305\u542b\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.includes(\"World\"));  \/\/ \u8f93\u51fa\uff1a true\nconsole.log(str.includes(\"JavaScript\"));  \/\/ \u8f93\u51fa\uff1a false<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>startsWith(searchValue)<\/code>\uff1a\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u5f00\u5934\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.startsWith(\"Hello\"));  \/\/ \u8f93\u51fa\uff1a true<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>endsWith(searchValue)<\/code>\uff1a\u5224\u65ad\u5b57\u7b26\u4e32\u662f\u5426\u4ee5\u6307\u5b9a\u7684\u5b50\u5b57\u7b26\u4e32\u7ed3\u5c3e\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(str.endsWith(\"!\"));  \/\/ \u8f93\u51fa\uff1a true<\/code><\/pre>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>repeat(count)<\/code>\uff1a\u8fd4\u56de\u4e00\u4e2a\u65b0\u7684\u5b57\u7b26\u4e32\uff0c\u8868\u793a\u539f\u5b57\u7b26\u4e32\u91cd\u590d <code>count<\/code> \u6b21\u3002<\/li>\n<\/ul>\n\n\n\n<pre class=\"wp-block-code\"><code>console.log(\"abc\".repeat(3));  \/\/ \u8f93\u51fa\uff1a \"abcabcabc\"<\/code><\/pre>\n\n\n\n<h4 class=\"wp-block-heading\">3.7 <strong>\u6a21\u677f\u5b57\u7b26\u4e32 (Template Literals)<\/strong><\/h4>\n\n\n\n<p>ES6 \u5f15\u5165\u4e86\u6a21\u677f\u5b57\u7b26\u4e32\uff0c\u5b83\u662f\u4f7f\u7528\u53cd\u5f15\u53f7 <code>`<\/code> \u5305\u88f9\u7684\u5b57\u7b26\u4e32\uff0c\u652f\u6301\u5d4c\u5165\u8868\u8fbe\u5f0f\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const name = \"Alice\";\nconst greeting = `Hello, ${name}!`;\nconsole.log(greeting);  \/\/ \u8f93\u51fa\uff1a \"Hello, Alice!\"<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">4. <strong>\u5b57\u7b26\u4e32\u5b9e\u4f8b\u5316\u548c\u539f\u59cb\u5b57\u7b26\u4e32\u6bd4\u8f83<\/strong><\/h3>\n\n\n\n<p>\u5c3d\u7ba1\u4f60\u53ef\u4ee5\u4f7f\u7528 <code>new String()<\/code> \u521b\u5efa\u5b57\u7b26\u4e32\u5bf9\u8c61\uff0c\u4f46\u901a\u5e38\u4e0d\u63a8\u8350\u8fd9\u6837\u505a\uff0c\u56e0\u4e3a\u5b83\u4f1a\u8fd4\u56de\u4e00\u4e2a\u5bf9\u8c61\uff0c\u800c\u4e0d\u662f\u539f\u59cb\u5b57\u7b26\u4e32\u3002\u5e76\u4e14\u5728\u6bd4\u8f83\u65f6\u4e5f\u6709\u4e0d\u540c\u7684\u884c\u4e3a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>const strObj = new String(\"Hello\");\nconst strPrim = \"Hello\";\n\nconsole.log(strObj == strPrim);    \/\/ true\uff08\u6bd4\u8f83\u503c\uff09\nconsole.log(strObj === strPrim);   \/\/ false\uff08\u6bd4\u8f83\u5bf9\u8c61\u4e0e\u539f\u59cb\u503c\uff09<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">5. <strong>\u5b9e\u6218\u6848\u4f8b\uff1a\u5b57\u7b26\u4e32\u64cd\u4f5c<\/strong><\/h3>\n\n\n\n<p>\u5047\u8bbe\u4f60\u6b63\u5728\u5f00\u53d1\u4e00\u4e2a\u7b80\u5355\u7684\u6587\u672c\u5904\u7406\u5de5\u5177\uff0c\u8981\u6c42\u80fd\u591f\u6267\u884c\u4ee5\u4e0b\u64cd\u4f5c\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u6e05\u9664\u6587\u672c\u4e24\u7aef\u7684\u7a7a\u683c\u3002<\/li>\n\n\n\n<li>\u5c06\u6587\u672c\u8f6c\u6362\u4e3a\u5927\u5199\u3002<\/li>\n\n\n\n<li>\u7edf\u8ba1\u6587\u672c\u4e2d\u7684\u5355\u8bcd\u6570\u3002<\/li>\n<\/ol>\n\n\n\n<pre class=\"wp-block-code\"><code>function processText(input) {\n  const cleaned = input.trim();\n  const uppercased = cleaned.toUpperCase();\n  const wordCount = cleaned.split(\/\\s+\/).length;  \/\/ \u4f7f\u7528\u6b63\u5219\u62c6\u5206\u5355\u8bcd\n\n  return {\n    cleanedText: cleaned,\n    uppercasedText: uppercased,\n    wordCount: wordCount\n  };\n}\n\nconst result = processText(\"   Hello world, this is JavaScript!   \");\nconsole.log(result);\n\/\/ \u8f93\u51fa\uff1a\n\/\/ {\n\/\/   cleanedText: \"Hello world, this is JavaScript!\",\n\/\/   uppercasedText: \"HELLO WORLD, THIS IS JAVASCRIPT!\",\n\/\/   wordCount: 6\n\/\/ }<\/code><\/pre>\n\n\n\n<h3 class=\"wp-block-heading\">\u603b\u7ed3<\/h3>\n\n\n\n<p>JavaScript \u7684 <code>String<\/code> \u7c7b\u578b\u662f\u975e\u5e38\u7075\u6d3b\u548c\u5f3a\u5927\u7684\uff0c\u53ef\u4ee5\u5e2e\u52a9\u4f60\u8f7b\u677e\u5904\u7406\u548c\u64cd\u4f5c\u6587\u672c\u6570\u636e\u3002\u901a\u8fc7\u4e0a\u8ff0\u65b9\u6cd5\uff0c\u4f60\u53ef\u4ee5\u5b8c\u6210\u5b57\u7b26\u4e32\u7684\u57fa\u672c\u64cd\u4f5c\u3001\u67e5\u627e\u3001\u66ff\u6362\u3001\u683c\u5f0f\u5316\u7b49\u591a\u79cd\u4efb\u52a1\u3002\u7406\u89e3\u8fd9\u4e9b\u65b9\u6cd5\u5c06\u6781\u5927\u5730\u63d0\u5347\u4f60\u5728\u524d\u7aef\u5f00\u53d1\u4e2d\u7684\u6548\u7387\u548c\u80fd\u529b\u3002<\/p>\n\n\n\n<p>\u66f4\u591a\u8be6\u7ec6\u5185\u5bb9\u8bf7\u5173\u6ce8\u6390\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728 JavaScript \u4e2d\uff0c\u5b57\u7b26\u4e32\uff08String\uff09 \u662f\u4e00\u79cd\u539f\u59cb\u6570\u636e\u7c7b\u578b\uff0c\u7528\u4e8e\u8868\u793a\u6587\u672c\u6570\u636e\u3002\u9664\u4e86\u5b57\u7b26\u4e32\u5b57\u9762\u91cf\uff08 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-2129","post","type-post","status-publish","format-standard","hentry","category-javascript"],"_links":{"self":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2129","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/comments?post=2129"}],"version-history":[{"count":1,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2129\/revisions"}],"predecessor-version":[{"id":2130,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/posts\/2129\/revisions\/2130"}],"wp:attachment":[{"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/media?parent=2129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/categories?post=2129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laixuexila.com\/index.php\/wp-json\/wp\/v2\/tags?post=2129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}