{"id":1411,"date":"2024-11-10T09:24:19","date_gmt":"2024-11-10T01:24:19","guid":{"rendered":"https:\/\/fwq.ai\/blog\/1411\/"},"modified":"2024-11-10T09:24:19","modified_gmt":"2024-11-10T01:24:19","slug":"%e6%8e%8c%e6%8f%a1-javascript-%e4%b8%ad%e7%9a%84%e5%be%aa%e7%8e%af%ef%bc%9a%e7%bb%bc%e5%90%88%e6%8c%87%e5%8d%97","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/1411\/","title":{"rendered":"\u638c\u63e1 JavaScript \u4e2d\u7684\u5faa\u73af\uff1a\u7efc\u5408\u6307\u5357"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173042515452826.jpg\" class=\"aligncenter\" title=\"\u638c\u63e1 JavaScript \u4e2d\u7684\u5faa\u73af\uff1a\u7efc\u5408\u6307\u5357\u63d2\u56fe\" alt=\"\u638c\u63e1 JavaScript \u4e2d\u7684\u5faa\u73af\uff1a\u7efc\u5408\u6307\u5357\u63d2\u56fe\" \/><\/p>\n<p>\u5faa\u73af\u662f\u7f16\u7a0b\u7684\u57fa\u7840\uff1a\u4f7f\u6211\u4eec\u80fd\u591f\u7528\u6700\u5c11\u7684\u4ee3\u7801\u6267\u884c\u91cd\u590d\u6027\u4efb\u52a1\u3002\u65e0\u8bba\u60a8\u662f\u521a\u521a\u5165\u95e8\u7684\u521d\u5b66\u8005\uff0c\u8fd8\u662f\u5e0c\u671b\u7cbe\u70bc\u77e5\u8bc6\u7684\u7ecf\u9a8c\u4e30\u5bcc\u7684\u5f00\u53d1\u4eba\u5458\uff0c\u7406\u89e3\u5faa\u73af\u90fd\u5c06\u5927\u5927\u589e\u5f3a\u60a8\u7f16\u5199\u9ad8\u6548\u3001\u5e72\u51c0\u4e14\u6709\u8da3\u7684\u4ee3\u7801\u7684\u80fd\u529b\u3002<\/p>\n<p>\u5728\u672c\u6307\u5357\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u7814\u7a76\u4e0d\u540c\u7c7b\u578b\u7684\u5faa\u73af\u3001\u5b83\u4eec\u5728\u6d41\u884c\u7f16\u7a0b\u8bed\u8a00\u4e2d\u7684\u8bed\u6cd5\uff0c\u4ee5\u53ca\u6709\u5173\u4f55\u65f6\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u4f7f\u7528\u5b83\u4eec\u7684\u4e00\u4e9b\u63d0\u793a\u3002<\/p>\n<p>\u4ec0\u4e48\u662f\u5faa\u73af\uff1f<\/p>\n<p>\u5faa\u73af\u662f\u4e00\u79cd\u7f16\u7a0b\u7ed3\u6784\/\u51fd\u6570\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u91cd\u590d\u4e00\u7ec4\u6307\u4ee4\uff0c\u76f4\u5230\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u3002\u901a\u8fc7\u4f7f\u7528\u5faa\u73af\uff0c\u6211\u4eec\u53ef\u4ee5\u907f\u514d\u91cd\u590d\u3001\u5904\u7406\u5927\u578b\u6570\u636e\u96c6\u5e76\u6709\u6548\u5730\u673a\u68b0\u5316\u4efb\u52a1\u3002 javascript \u4e2d\u4f7f\u7528\u5faa\u73af\u6765\u6839\u636e\u6761\u4ef6\u6267\u884c\u91cd\u590d\u4efb\u52a1\uff0c\u6b64\u6761\u4ef6\u901a\u5e38\u8fd4\u56de true \u6216 false\u3002<\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u5e38\u89c1\u7528\u4f8b\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u8fed\u4ee3\u5217\u8868\u6216\u6570\u7ec4<\/li>\n<li>\u8fd0\u884c\u4ee3\u7801\u4e00\u5b9a\u6b21\u6570<\/li>\n<li>\u641c\u7d22\u96c6\u5408\u4e2d\u7684\u7279\u5b9a\u9879\u76ee<\/li>\n<li>\u6267\u884c\u67d0\u4e2a\u64cd\u4f5c\uff0c\u76f4\u5230\u6ee1\u8db3\u6761\u4ef6<\/li>\n<\/ul>\n<p>\u5faa\u73af\u7c7b\u578b<\/p>\n<ol>\n<li>for \u5faa\u73af<\/li>\n<li>while \u5faa\u73af<\/li>\n<li>do-while \u5faa\u73af<\/li>\n<li>for&#8230;of \u5faa\u73af<\/li>\n<li>for&#8230;in \u5faa\u73af<\/li>\n<li>\u5d4c\u5957\u5faa\u73af<\/li>\n<\/ol>\n<p>\u5927\u591a\u6570\u7f16\u7a0b\u8bed\u8a00\u4e2d\u901a\u5e38\u5b58\u5728\u4e09\u79cd\u4e3b\u8981\u7c7b\u578b\u7684\u5faa\u73af\uff1a<\/p>\n<ol>\n<li>for \u5faa\u73af<\/li>\n<li>while \u5faa\u73af<\/li>\n<li>do-while \u5faa\u73af<\/li>\n<\/ol>\n<p>\u8ba9\u6211\u4eec\u6765\u5206\u89e3\u4e00\u4e0b\u6bcf\u79cd\u7c7b\u578b\u3002<\/p>\n<ol>\n<li>for \u5faa\u73af<\/li>\n<\/ol>\n<p>\u5f53\u60a8\u9884\u5148\u77e5\u9053\u9700\u8981\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\u591a\u5c11\u6b21\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\uff0c\u5b83\u975e\u5e38\u9002\u5408\u8fed\u4ee3\u6570\u7ec4\u6216\u96c6\u5408\u3002<\/p>\n<p>\u8bed\u6cd5\uff08javascript \u793a\u4f8b\uff09\uff1a<\/p>\n<p>\u793a\u4f8b1\uff1a<\/p>\n<pre>for i in range(5);\n    print(\"hello, world!\");\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0crange(5) \u751f\u6210\u4e00\u4e2a\u4ece 0 \u5230 4 \u7684\u5e8f\u5217\u3002\u5faa\u73af\u5c06\u8fd0\u884c\u4e94\u6b21\uff0c\u6253\u5370\u201chello, world!\u201d\u6bcf\u6b21\u3002<\/p>\n<p>\u793a\u4f8b2\uff1a<\/p>\n<pre>for(let i = 0; i &lt;= 10; i++) {\n    console.log(i);\n}\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u5b83\u6307\u51fa\uff1b\u5982\u679c\u7b49\u4e8e 0 \u7684 i \u5c0f\u4e8e\u6216\u7b49\u4e8e 10\uff0c\u5219\u4ee4 i = 0\uff1b\u589e\u91cf\uff08i++\uff09\u3002\u8fd9\u4e2a javascript \u8fd0\u7b97\u7b26\uff08++\uff09\u5c06\u8fd4\u56de\u539f\u59cb\u503c\u5e76\u5faa\u73af\u76f4\u5230 10\u3002<\/p>\n<p>\u793a\u4f8b3\uff1a<\/p>\n<pre>for(let i = 0; i &lt;= 10; i++) {\n    console.log(`for loop number: ${i}`);\n}\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u6b64\u793a\u4f8b\u5b9e\u9645\u4e0a\u4e0e\u524d\u9762\u7684\u793a\u4f8b\u76f8\u540c\uff0c\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u4f7f\u7528\u7f8e\u5143\u7b26\u53f7 ($) \u548c\u53cd\u5f15\u53f7\u6765\u63d0\u4f9b\u5c06\u6587\u672c\u201cfor loop number\u201d\u6dfb\u52a0\u5230\u5faa\u73af\u7684\u529f\u80fd\u3002<\/p>\n<p>\u793a\u4f8b 4\uff1a<\/p>\n<pre>for (let i = 20; i &gt;= 0; i--){\n    console.log(i)\n}\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u5b83\u6307\u51fa\uff0c\u4ee4 i = 20\uff1b\u5982\u679c i \u5927\u4e8e\u6216\u7b49\u4e8e 0 \u5219\u51cf\u91cf\u3002\u81ea\u51cf\u8fd0\u7b97\u5c06\u6570\u5b57\u51cf 1\uff0c\u5b83\u4f7f\u7528 &#8211;operator\u3002<\/p>\n<p>\u4f55\u65f6\u4f7f\u7528\uff1a<\/p>\n<p>\u5f53\u60a8\u77e5\u9053\u786e\u5207\u7684\u8fed\u4ee3\u6b21\u6570\u6216\u9700\u8981\u8fed\u4ee3\u5217\u8868\u3001\u5b57\u5178\u6216\u6570\u7ec4\u4e2d\u7684\u5143\u7d20\u65f6\uff0c\u8bf7\u4f7f\u7528 for \u5faa\u73af\u3002<\/p>\n<ol>\n<li>while \u5faa\u73af<\/li>\n<\/ol>\n<p>\u5f53\u4e8b\u5148\u4e0d\u77e5\u9053\u8fed\u4ee3\u6b21\u6570\u65f6\uff0c\u4f7f\u7528 while \u5faa\u73af\u3002\u76f8\u53cd\uff0c\u5faa\u73af\u5c06\u7ee7\u7eed\u4e0b\u53bb\uff0c\u76f4\u5230\u4e0d\u518d\u6ee1\u8db3\u6307\u5b9a\u7684\u6761\u4ef6\u3002 while \u5faa\u73af\u7684\u4e0d\u540c\u4e4b\u5904\u5728\u4e8e\u60a8\u5728\u5916\u90e8\u8bbe\u7f6e\u53d8\u91cf\u3002<\/p>\n<p>\u8bed\u6cd5\uff08javascript \u793a\u4f8b\uff09\uff1a<\/p>\n<p>\u793a\u4f8b1\uff1a<\/p>\n<pre>let i = 0;\nwhile(i &lt; 10){\nconsole.log(`for while number: ${i}`);\n\ni++;\n}\n\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\u53ef\u4ee5\u770b\u51fa\u53d8\u91cf\u662f\u5728\u5916\u90e8\u8bbe\u7f6e\u7684\uff0c\u5b83\u58f0\u660elet i = 0;\u5982\u679c i \u5c0f\u4e8e 10 \u589e\u91cf\uff08i++\uff09\uff0c\u5219\u4f7f\u7528\u7f8e\u5143\u7b26\u53f7\uff08$\uff09\u548c\u53cd\u5f15\u53f7\u6765\u914d\u7f6e\u6587\u672c\u201cfor while loop\u201d\u3002<\/p>\n<p>\u793a\u4f8b2\uff1a<\/p>\n<pre>let johnpaul = 0;\nwhile(johnpaul &lt; 5) {\nconsole.log(\"hello, world!\");\njohnpaul++;\n}\n\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4ee3\u7801\u5c06\u53d8\u91cf johnpaul \u521d\u59cb\u5316\u4e3a 0\uff0c\u5e76\u4f7f\u7528 while \u5faa\u73af\u6253\u5370\u201chello, world!\u201d\u76f4\u5230\u7ea6\u7ff0\u4fdd\u7f57\u6ee1 5 \u5c81\u3002<\/p>\n<p>\u4f55\u65f6\u4f7f\u7528\uff1a<\/p>\n<p>\u5f53\u8fed\u4ee3\u6b21\u6570\u672a\u77e5\u6216\u53d6\u51b3\u4e8e\u5faa\u73af\u5185\u53ef\u80fd\u53d1\u751f\u53d8\u5316\u7684\u6761\u4ef6\u65f6\uff0c\u8bf7\u4f7f\u7528 while \u5faa\u73af\u3002\u5b83\u901a\u5e38\u7528\u4e8e\u9700\u8981\u6301\u7eed\u68c0\u67e5\u7684\u4efb\u52a1\uff0c\u4f8b\u5982\u7b49\u5f85\u7528\u6237\u8f93\u5165\u3002<\/p>\n<ol>\n<li>do-while \u5faa\u73af <\/li>\n<\/ol>\n<p>do-while \u5faa\u73af\u4e0e while \u5faa\u73af\u7c7b\u4f3c\uff0c\u4f46\u5b83\u4fdd\u8bc1\u5faa\u73af\u5185\u7684\u4ee3\u7801\u5728\u6d4b\u8bd5\u6761\u4ef6\u4e4b\u524d\u81f3\u5c11\u8fd0\u884c\u4e00\u6b21\u3002\u8fd9\u79cd\u7c7b\u578b\u7684\u5faa\u73af\u5e76\u975e\u5728\u6240\u6709\u8bed\u8a00\uff08\u4f8b\u5982 \uff09\u4e2d\u90fd\u53ef\u7528\uff0c\u4f46\u5728 javascript\u3001c \u548c java \u4e2d\u5f88\u5e38\u89c1\u3002<\/p>\n<p>\u8bed\u6cd5\uff08javascript \u793a\u4f8b\uff09\uff1a<\/p>\n<p>\u793a\u4f8b1\uff1a<\/p>\n<pre>let jude = 0;\ndo {\n     console.log(\"hello world!\");\n     jude++;\n} while  (jude &lt; 5); \n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u201c\u4f60\u597d\uff0c\u4e16\u754c\uff01\u201d\u5c06\u5728\u8bc4\u4f30\u6761\u4ef6 (jude <\/p>\n<p>\u793a\u4f8b2\uff1a<\/p>\n<pre>let number = 1;\ndo {\n    console.log(\"current number is: \" + number);\n    number++;\n} while (number &lt;= 5);\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6570\u5b57\u521d\u59cb\u5316\/\u7b49\u4e8e 1\u3002\u7136\u540e\u8fd0\u884c \u200b\u200bdo \u5757\uff0c\u6253\u5370\u201c\u5f53\u524d\u6570\u5b57\u662f\uff1a\u201d\uff0c\u540e\u8ddf\u6570\u5b57\u7684\u503c\u3002\u6253\u5370\u540e\uff0cnumber \u589e\u52a0 1 \u53ea\u8981\u6761\u4ef6\uff08number <\/p>\n<p>\u4f55\u65f6\u4f7f\u7528\uff1a<\/p>\n<p>\u5f53\u65e0\u8bba\u6761\u4ef6\u5982\u4f55\u90fd\u9700\u8981\u5faa\u73af\u4f53\u81f3\u5c11\u6267\u884c\u4e00\u6b21\u65f6\uff0c\u8bf7\u4f7f\u7528 do-while \u5faa\u73af\u3002\u5bf9\u4e8e\u5728\u5faa\u73af\u5185\u8fdb\u884c\u521d\u59cb\u5316\u7684\u4efb\u52a1\u975e\u5e38\u6709\u7528\u3002<\/p>\n<p>\u9009\u62e9\u6b63\u786e\u7684\u5faa\u73af<\/p>\n<ul>\n<li>\n<p>for \u5faa\u73af\uff1a\u5f53\u60a8\u77e5\u9053\u786e\u5207\u7684\u8fed\u4ee3\u6b21\u6570\u6216\u9700\u8981<br \/> \u8fed\u4ee3\u5143\u7d20\u3002<\/p>\n<\/li>\n<li>\n<p>while \u5faa\u73af\uff1a\u5f53\u8fed\u4ee3\u6b21\u6570\u672a\u77e5\u4e14\u53d6\u51b3\u4e8e <br \/> \u65f6 \u72b6\u51b5\u3002<\/p>\n<\/li>\n<li>\n<p>do-while \u5faa\u73af\uff1a\u5f53\u60a8\u5e0c\u671b\u5faa\u73af\u4f53\u4e4b\u524d\u81f3\u5c11\u6267\u884c\u4e00\u6b21\u65f6\uff0c\u5373\u4f7f\u6761\u4ef6\u6700\u521d\u4e3a false\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u5faa\u73af\u63a7\u5236\uff1a\u4e2d\u65ad\u548c\u7ee7\u7eed<\/p>\n<p>\u5728\u5927\u591a\u6570\u7f16\u7a0b\u8bed\u8a00\u4e2d\uff0c\u90fd\u6709\u63a7\u5236\u8bed\u53e5\u6765\u7ba1\u7406\u5faa\u73af\u6267\u884c\uff1a<\/p>\n<ul>\n<li>break\uff1a\u7acb\u5373\u9000\u51fa\u5faa\u73af\u3002<\/li>\n<li>\u7ee7\u7eed\uff1a\u8df3\u8fc7\u5f53\u524d\u8fed\u4ee3\u5e76\u79fb\u81f3\u4e0b\u4e00\u4e2a\u8fed\u4ee3\u3002<\/li>\n<\/ul>\n<p>\u793a\u4f8b\uff1a<\/p>\n<pre>for (let i = 0; i &lt; 10; i++) {\n    if (i === 5) {\n        break; \/\/ Stops the loop when i is 5\n    } else if (i % 2 === 0) {\n        continue; \/\/ Skips even numbers\n    }\n}\n<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u8bf4\u660e\uff1a<\/p>\n<ul>\n<li>\u5faa\u73af\u4ece 0 \u8fed\u4ee3\u5230 9\u3002<\/li>\n<li>\u5f53 i \u4e3a 5 \u65f6\uff0cbreak \u505c\u6b62\u5faa\u73af\u3002<\/li>\n<li>\u5982\u679c i \u662f\u5076\u6570\uff0c\u5219\u7ee7\u7eed\u8df3\u5230\u4e0b\u4e00\u6b21\u8fed\u4ee3\u800c\u4e0d\u6253\u5370\u3002<\/li>\n<li>\u4ec5\u6253\u5370 5 \u4ee5\u4e0b\u7684\u5947\u6570\u3002<\/li>\n<\/ul>\n<p>\u5faa\u73af\u7684\u5e38\u89c1\u9519\u8bef<\/p>\n<ol>\n<li>\n<p>\u65e0\u9650\u5faa\u73af\uff1a\u5f53\u5faa\u73af\u7684\u9000\u51fa\u6761\u4ef6\u6c38\u8fdc\u4e0d\u4f1a<br \/>\u65f6\uff0c\u5c31\u4f1a\u53d1\u751f\u8fd9\u79cd\u60c5\u51b5 \u9047\u89c1\u4e86\u3002\u4f8b\u5982\u5fd8\u8bb0\u5728 while \u5faa\u73af\u4e2d\u589e\u52a0\u8ba1\u6570\u5668\u3002<\/p>\n<\/li>\n<li>\n<p>\u5dee\u4e00\u9519\u8bef\uff1a\u5f53\u8303\u56f4\u4e0d<br \/>\u65f6\uff0c\u7ecf\u5e38\u53d1\u751f\u5728for\u5faa\u73af\u4e2d \u8bbe\u7f6e\u6b63\u786e\u3002 <\/p>\n<\/li>\n<li>\n<p>\u4e0d\u5fc5\u8981\u7684\u5faa\u73af\uff1a\u4f7f\u7528\u4f18\u5316\u64cd\u4f5c\u6216\u5185\u7f6e\u51fd\u6570\u53ef\u4ee5\u63d0\u9ad8\u6548\u7387\u7684\u5faa\u73af\u3002<\/p>\n<\/li>\n<\/ol>\n<p>\u6700\u4f73\u5b9e\u8df5<\/p>\n<ul>\n<li>\n<p>\u4f7f\u7528\u63cf\u8ff0\u6027\u53d8\u91cf\uff1a\u4f7f\u7528 i\u3001a \u6216 b \u7b49\u901a\u7528\u540d\u79f0\uff0c<br \/> \u5c3d\u7ba1\u4e0d\u662f\u63cf\u8ff0\u6027\u7684\uff0c\u4f46\u4e5f\u7b97\u6570\u3002\u800c\u662f\u4f7f\u7528\u63cf\u8ff0\u6027\u53d8\u91cf\u540d\u79f0<br \/> \u5982\u679c\u53ef\u80fd\u7684\u8bdd\uff0c\u6bd4\u5982 john\u3001mn\u3001count\u3001jude\u3001johnpaul \u7b49\uff0c<br \/> \u7279\u522b\u662f\u5bf9\u4e8e\u5d4c\u5957\u5faa\u73af\u3002<\/p>\n<\/li>\n<li>\n<p>\u8003\u8651\u6027\u80fd\uff1a\u5728\u5927\u578b\u6570\u636e\u5e93\u4e0a\u8fd0\u884c\u7684\u5faa\u73af\u53ef\u80fd\u4f1a\u51cf\u6162<br \/> \u7a0b\u5e8f\u3002\u5bfb\u627e\u4f18\u5316\uff0c\u4f8b\u5982\u6570\u7ec4 <br \/> \u4e2d\u7684\u5217\u8868\u63a8\u5bfc\u5f0f javascript \u4e2d\u7684\u65b9\u6cd5\u3002<\/p>\n<\/li>\n<\/ul>\n<p>\u7ed3\u8bba<\/p>\n<p>\u5faa\u73af\u662f\u7f16\u7a0b\u4e2d\u5fc5\u4e0d\u53ef\u5c11\u7684\u5de5\u5177\uff0c\u4f7f\u60a8\u80fd\u591f\u81ea\u52a8\u6267\u884c\u91cd\u590d\u4efb\u52a1\u5e76\u8f7b\u677e\u5904\u7406\u590d\u6742\u7684\u6570\u636e\u5e93\u3002\u901a\u8fc7\u638c\u63e1 for\u3001while \u548c do-while \u5faa\u73af\uff0c\u60a8\u5c06\u80fd\u591f\u5e94\u5bf9\u5404\u79cd\u7f16\u7801\u6311\u6218\u3002 <\/p>\n<p>\u5e0c\u671b\u8fd9\u6709\u5e2e\u52a9\uff01\u5982\u679c\u60a8\u5e0c\u671b\u6211\u6dfb\u52a0\u5177\u4f53\u7684\u7ec6\u8282\u6216\u793a\u4f8b\uff0c\u8bf7\u544a\u8bc9\u6211\uff0c\u5982\u679c\u60a8\u5728\u8fd0\u884c\u4ee3\u7801\u65f6\u9047\u5230\u4efb\u4f55\u56f0\u96be\/\u95ee\u9898\uff0c\u8bf7\u5411\u6211\u8be2\u95ee\uff0c\u6211\u5f88\u4e50\u610f\u63d0\u4f9b\u5e2e\u52a9\u3002<\/p>\n<p>\u7f16\u7801\u5feb\u4e50\uff01<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u638c\u63e1 JavaScript \u4e2d\u7684\u5faa\u73af\uff1a\u7efc\u5408\u6307\u5357\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5faa\u73af\u662f\u7f16\u7a0b\u7684\u57fa\u7840\uff1a\u4f7f\u6211\u4eec\u80fd\u591f\u7528\u6700\u5c11\u7684\u4ee3\u7801\u6267\u884c\u91cd\u590d\u6027\u4efb\u52a1\u3002\u65e0\u8bba\u60a8\u662f\u521a\u521a\u5165\u95e8\u7684\u521d\u5b66\u8005\uff0c\u8fd8\u662f\u5e0c\u671b\u7cbe\u70bc\u77e5\u8bc6\u7684\u7ecf\u9a8c\u4e30\u5bcc\u7684\u5f00\u53d1\u4eba\u5458\uff0c\u7406\u89e3\u5faa\u73af\u90fd\u5c06\u5927\u5927\u589e\u5f3a\u60a8\u7f16\u5199\u9ad8\u6548\u3001\u5e72\u51c0\u4e14\u6709\u8da3\u7684\u4ee3\u7801\u7684\u80fd\u529b\u3002 \u5728\u672c\u6307\u5357\u4e2d\uff0c\u6211\u4eec\u5c06\u6df1\u5165\u7814\u7a76\u4e0d\u540c\u7c7b\u578b\u7684\u5faa\u73af\u3001\u5b83\u4eec\u5728\u6d41\u884c\u7f16\u7a0b\u8bed\u8a00\u4e2d\u7684\u8bed\u6cd5\uff0c\u4ee5\u53ca\u6709\u5173\u4f55\u65f6\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u4f7f\u7528\u5b83\u4eec\u7684\u4e00\u4e9b\u63d0\u793a\u3002 \u4ec0\u4e48\u662f\u5faa\u73af\uff1f \u5faa\u73af\u662f\u4e00\u79cd\u7f16\u7a0b\u7ed3\u6784\/\u51fd\u6570\uff0c\u5b83\u5141\u8bb8\u6211\u4eec\u91cd\u590d\u4e00\u7ec4\u6307\u4ee4\uff0c\u76f4\u5230\u6ee1\u8db3\u7279\u5b9a\u6761\u4ef6\u3002\u901a\u8fc7\u4f7f\u7528\u5faa\u73af\uff0c\u6211\u4eec\u53ef\u4ee5\u907f\u514d\u91cd\u590d\u3001\u5904\u7406\u5927\u578b\u6570\u636e\u96c6\u5e76\u6709\u6548\u5730\u673a\u68b0\u5316\u4efb\u52a1\u3002 javascript \u4e2d\u4f7f\u7528\u5faa\u73af\u6765\u6839\u636e\u6761\u4ef6\u6267\u884c\u91cd\u590d\u4efb\u52a1\uff0c\u6b64\u6761\u4ef6\u901a\u5e38\u8fd4\u56de true \u6216 false\u3002 \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5e38\u89c1\u7528\u4f8b\u5305\u62ec\uff1a \u8fed\u4ee3\u5217\u8868\u6216\u6570\u7ec4 \u8fd0\u884c\u4ee3\u7801\u4e00\u5b9a\u6b21\u6570 \u641c\u7d22\u96c6\u5408\u4e2d\u7684\u7279\u5b9a\u9879\u76ee \u6267\u884c\u67d0\u4e2a\u64cd\u4f5c\uff0c\u76f4\u5230\u6ee1\u8db3\u6761\u4ef6 \u5faa\u73af\u7c7b\u578b for \u5faa\u73af while \u5faa\u73af do-while \u5faa\u73af for&#8230;of \u5faa\u73af for&#8230;in \u5faa\u73af \u5d4c\u5957\u5faa\u73af \u5927\u591a\u6570\u7f16\u7a0b\u8bed\u8a00\u4e2d\u901a\u5e38\u5b58\u5728\u4e09\u79cd\u4e3b\u8981\u7c7b\u578b\u7684\u5faa\u73af\uff1a for \u5faa\u73af while \u5faa\u73af do-while \u5faa\u73af \u8ba9\u6211\u4eec\u6765\u5206\u89e3\u4e00\u4e0b\u6bcf\u79cd\u7c7b\u578b\u3002 for \u5faa\u73af \u5f53\u60a8\u9884\u5148\u77e5\u9053\u9700\u8981\u6267\u884c\u4e00\u6bb5\u4ee3\u7801\u591a\u5c11\u6b21\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\uff0c\u5b83\u975e\u5e38\u9002\u5408\u8fed\u4ee3\u6570\u7ec4\u6216\u96c6\u5408\u3002 \u8bed\u6cd5\uff08javascript \u793a\u4f8b\uff09\uff1a \u793a\u4f8b1\uff1a for i in range(5); print(&#8220;hello, world!&#8221;); \u767b\u5f55\u540e\u590d\u5236 \u5728\u6b64\u793a\u4f8b\u4e2d\uff0crange(5) \u751f\u6210\u4e00\u4e2a\u4ece 0 \u5230 4 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-1411","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=1411"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/1411\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=1411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=1411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=1411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}