{"id":2447,"date":"2024-11-10T11:36:55","date_gmt":"2024-11-10T03:36:55","guid":{"rendered":"https:\/\/fwq.ai\/blog\/2447\/"},"modified":"2024-11-10T11:36:55","modified_gmt":"2024-11-10T03:36:55","slug":"javascript-%e9%97%ad%e5%8c%85%e4%b8%ad%e7%9a%84%e5%8f%8c%e6%8b%ac%e5%8f%b7%ef%bc%9a%e4%b8%ba%e4%bb%80%e4%b9%88%e9%9c%80%e8%a6%81%e5%ae%83%e4%bb%ac%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/2447\/","title":{"rendered":"JavaScript \u95ed\u5305\u4e2d\u7684\u53cc\u62ec\u53f7\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83\u4eec\uff1f"},"content":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/001\/246\/273\/173076841669308.jpg\" class=\"aligncenter\" title=\"JavaScript \u95ed\u5305\u4e2d\u7684\u53cc\u62ec\u53f7\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83\u4eec\uff1f\u63d2\u56fe\" alt=\"JavaScript \u95ed\u5305\u4e2d\u7684\u53cc\u62ec\u53f7\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83\u4eec\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u6df1\u5165\u7406\u89e3 js \u95ed\u5305\u7684\u8fde\u7eed\u62ec\u53f7<\/strong><\/p>\n<p>\u4f5c\u4e3a\u4e00\u540d\u4ece ++\/java \u8f6c\u5230 js \u7684\u5f00\u53d1\u8005\uff0c\u4f60\u53ef\u80fd\u5bf9\u95ed\u5305\u8868\u8fbe\u5f0f\u7684\u53cc\u62ec\u53f7\u5f62\u5f0f\u611f\u5230\u7591\u60d1\u3002\u4ee5\u4e0b\u662f\u5bf9\u5176\u80cc\u540e\u7684\u539f\u7406\u548c\u89c4\u8303\u7684\u89e3\u91ca\uff1a<\/p>\n<p><strong>\u53cc\u62ec\u53f7\u7684\u7528\u9014<\/strong><\/p>\n<ul>\n<li>\u5916\u5c42\u7684\u62ec\u53f7\u7528\u4e8e\u7acb\u5373\u8c03\u7528\u51fd\u6570\u8868\u8fbe\u5f0f\u3002<\/li>\n<li>\u5185\u5c42\u7684\u62ec\u53f7\u5b9a\u4e49\u51fd\u6570\u672c\u8eab\u3002<\/li>\n<\/ul>\n<p><strong>\u793a\u4f8b\u89e3\u91ca<\/strong><\/p>\n<p><span>\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n<p>\u5728\u4f60\u7684\u793a\u4f8b\u4e2d\uff1a<\/p>\n<pre>(function() {\n  var a = 5;\n})();<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<ul>\n<li>\u5916\u5c42\u5706\u62ec\u53f7\u7acb\u5373\u8c03\u7528\u4e86\u533f\u540d\u51fd\u6570\u3002<\/li>\n<li>\u5185\u5c42\u5706\u62ec\u53f7\u5b9a\u4e49\u4e86\u51fd\u6570\uff0c\u521b\u5efa\u4e86\u4e00\u4e2a\u65b0\u7684\uff0c\u5176\u4e2d a \u4e3a 5\u3002<\/li>\n<li>\u51fd\u6570\u6267\u884c\u540e\uff0c\u6b64\u4f5c\u7528\u57df\u88ab\u91ca\u653e\uff0ca \u7684\u503c\u6062\u590d\u4e3a\u5168\u5c40\u53d8\u91cf\u7684 6\u3002<\/li>\n<\/ul>\n<p><strong>\u4e3a\u4ec0\u4e48\u662f\u8fd9\u4e2a\u89c4\u8303<\/strong><\/p>\n<p>\u8fd9\u79cd\u53cc\u62ec\u53f7\u7684\u89c4\u8303\u662f\u7531\u4ee5\u4e0b\u56e0\u7d20\u51b3\u5b9a\u7684\uff1a<\/p>\n<ul>\n<li> <strong>\u7acb\u5373\u8c03\u7528\uff1a<\/strong>\u5916\u5c42\u5706\u62ec\u53f7\u4f7f\u51fd\u6570\u7acb\u5373\u6267\u884c\uff0c\u5141\u8bb8\u8bbf\u95ee\u5176\u5c01\u95ed\u4f5c\u7528\u57df\u4e2d\u7684\u53d8\u91cf\uff0c\u4ece\u800c\u521b\u5efa\u95ed\u5305\u3002<\/li>\n<li> <strong>\u79c1\u6709\u4f5c\u7528\u57df\uff1a<\/strong>\u5185\u5c42\u5706\u62ec\u53f7\u521b\u5efa\u4e86\u4e00\u4e2a\u79c1\u6709\u4f5c\u7528\u57df\uff0c\u5176\u4e2d\u51fd\u6570\u7684\u53d8\u91cf\u5bf9\u5916\u90e8\u4ee3\u7801\u4e0d\u53ef\u89c1\u3002<\/li>\n<li> <strong>\u7075\u6d3b\u6027\uff1a<\/strong>\u7acb\u5373\u8c03\u7528\u51fd\u6570\u8868\u8fbe\u5f0f\u5141\u8bb8\u6211\u4eec\u7075\u6d3b\u5730\u4f7f\u7528\u51fd\u6570\uff0c\u5305\u62ec\u5c06\u5176\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u6216\u5b58\u50a8\u5728\u53d8\u91cf\u4e2d\u3002<\/li>\n<\/ul>\n<p><strong>\u8bb0\u4f4f\uff0c\u5e76\u975e\u6240\u6709\u95ed\u5305\u90fd\u4f7f\u7528\u8fd9\u79cd\u53cc\u62ec\u53f7\u683c\u5f0f\u3002\u7136\u800c\uff0c\u5b83\u662f\u4e00\u79cd\u5e38\u89c1\u4e14\u5f3a\u5927\u7684\u6a21\u5f0f\uff0c\u7528\u4e8e\u521b\u5efa\u548c\u7ba1\u7406\u79c1\u6709\u4f5c\u7528\u57df\u5185\u7684\u53d8\u91cf\u8bbf\u95ee\u3002<\/strong><\/p>\n<p>\u4ee5\u4e0a\u5c31\u662fJavaScript \u95ed\u5305\u4e2d\u7684\u53cc\u62ec\u53f7\uff1a\u4e3a\u4ec0\u4e48\u9700\u8981\u5b83\u4eec\uff1f\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>\u6df1\u5165\u7406\u89e3 js \u95ed\u5305\u7684\u8fde\u7eed\u62ec\u53f7 \u4f5c\u4e3a\u4e00\u540d\u4ece ++\/java \u8f6c\u5230 js \u7684\u5f00\u53d1\u8005\uff0c\u4f60\u53ef\u80fd\u5bf9\u95ed\u5305\u8868\u8fbe\u5f0f\u7684\u53cc\u62ec\u53f7\u5f62\u5f0f\u611f\u5230\u7591\u60d1\u3002\u4ee5\u4e0b\u662f\u5bf9\u5176\u80cc\u540e\u7684\u539f\u7406\u548c\u89c4\u8303\u7684\u89e3\u91ca\uff1a \u53cc\u62ec\u53f7\u7684\u7528\u9014 \u5916\u5c42\u7684\u62ec\u53f7\u7528\u4e8e\u7acb\u5373\u8c03\u7528\u51fd\u6570\u8868\u8fbe\u5f0f\u3002 \u5185\u5c42\u7684\u62ec\u53f7\u5b9a\u4e49\u51fd\u6570\u672c\u8eab\u3002 \u793a\u4f8b\u89e3\u91ca \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b \u5728\u4f60\u7684\u793a\u4f8b\u4e2d\uff1a (function() { var a = 5; 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