{"id":586,"date":"2015-02-15T14:36:25","date_gmt":"2015-02-15T06:36:25","guid":{"rendered":"http:\/\/www.daliane.com\/?p=586"},"modified":"2015-02-15T14:38:32","modified_gmt":"2015-02-15T06:38:32","slug":"qian_duan_leng_zhi_shi","status":"publish","type":"post","link":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/qian_duan_leng_zhi_shi\/","title":{"rendered":"\u524d\u7aef\u51b7\u77e5\u8bc6"},"content":{"rendered":"

\u524d\u7aef\u5df2\u7ecf\u88ab\u73a9\u513f\u574f\u4e86\uff01\u50cfconsole.log()\u53ef\u4ee5\u5411\u63a7\u5236\u53f0\u8f93\u51fa\u56fe\u7247\u7b49\u70ab\u9177\u7684\u73a9\u610f\u5df2\u7ecf\u4e0d\u662f\u4ec0\u4e48\u65b0\u95fb\u4e86\uff0c\u50cf\u7528||\u64cd\u4f5c\u7b26\u7ed9\u53d8\u91cf\u8d4b\u9ed8\u8ba4\u503c\u4e5f\u662f\u4eba\u5c3d\u7686\u77e5\u7684\u65e7\u95fb\u4e86\uff0c\u4eca\u5929\u770b\u5230Quora\u4e0a\u4e00\u4e2a\u5e16\u5b50\uff0c\u77ac\u95f4\u53c8GET\u4e86\u597d\u591a\u524d\u7aef\u6280\u80fd\uff0c\u4e00\u4e9b\u5c5e\u4e8e\u6280\u5de7\uff0c\u4e00\u4e9b\u5219\u662f\u95fb\u6240\u672a\u95fb\u7684\u51b7\u77e5\u8bc6\uff0c\u4e00\u65f6\u95f4\u8fd8\u6d88\u5316\u4e0d\u8fc7\u6765\u3002\u73b0\u5206\u7c7b\u6574\u7406\u51fa\u6765\u5206\u4eab\u7ed9\u5927\u5bb6\uff0c\u4e5f\u8865\u5145\u4e86\u4e00\u4e9b\u5e73\u65f6\u7684\u79ef\u7d2f\u548c\u6269\u5c55\u4e86\u4e00\u4e9b\u5185\u5bb9\u3002<\/p>\n

HTML\u7bc7<\/h1>\n

\u6d4f\u89c8\u5668\u5730\u5740\u680f\u8fd0\u884cJavaScript\u4ee3\u7801<\/h2>\n

\u8fd9\u4e2a\u5f88\u591a\u4eba\u5e94\u8be5\u8fd8\u662f\u77e5\u9053\u7684\uff0c\u5728\u6d4f\u89c8\u5668\u5730\u5740\u680f\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884cJavaScript\u4ee3\u7801\uff0c\u505a\u6cd5\u662f\u4ee5javascript:\u5f00\u5934\u540e\u8ddf\u8981\u6267\u884c\u7684\u8bed\u53e5\u3002\u6bd4\u5982\uff1a<\/p>\n

\n
javascript<\/span>:<\/span>alert<\/span>(<\/span>'hello from address bar :)'<\/span>);<\/span>\r\n<\/pre>\n<\/div>\n
\u5c06\u4ee5\u4e0a\u4ee3\u7801\u8d34\u5230\u6d4f\u89c8\u5668\u5730\u5740\u680f\u56de\u8f66\u540ealert\u6b63\u5e38\u6267\u884c\uff0c\u4e00\u4e2a\u5f39\u7a97\u795e\u73b0\u3002<\/p>\n
\u9700\u8981\u6ce8\u610f\u7684\u662f\u5982\u679c\u662f\u901a\u8fc7copy paste\u4ee3\u7801\u5230\u6d4f\u89c8\u5668\u5730\u5740\u680f\u7684\u8bdd\uff0cIE\u53caChrome\u4f1a\u81ea\u52a8\u53bb\u6389\u4ee3\u7801\u5f00\u5934\u7684javascript:\uff0c\u6240\u4ee5\u9700\u8981\u624b\u52a8\u6dfb\u52a0\u8d77\u6765\u624d\u80fd\u6b63\u786e\u6267\u884c\uff0c\u800cFirefox\u4e2d\u867d\u7136\u4e0d\u4f1a\u81ea\u52a8\u53bb\u6389\uff0c\u4f46\u5b83\u6839\u672c\u5c31\u4e0d\u652f\u6301\u5728\u5730\u5740\u680f\u8fd0\u884cJS\u4ee3\u7801\uff0csigh~<\/em><\/p>\n
\u8fd9\u4e00\u6280\u672f\u5728\u6211\u7684\u53e6\u4e00\u7bc7\u535a\u6587\u300a\u8ba9Chrome \u63a5\u7ba1\u90ae\u4ef6\u8fde\u63a5\uff0c\u6536\u53d1\u90ae\u4ef6\u66f4\u65b9\u4fbf\u4e86\u300b\u4e2d\u6709\u4f7f\u7528\u5230\uff0c\u5229\u7528\u5728\u6d4f\u89c8\u5668\u5730\u5740\u680f\u4e2d\u6267\u884cJavaScript\u4ee3\u7801\u5c06Gmail\u8bbe\u7f6e\u4e3a\u7cfb\u7edf\u7684\u90ae\u4ef6\u63a5\u7ba1\u7a0b\u5e8f\u3002<\/p>\n
\u6d4f\u89c8\u5668\u5730\u5740\u680f\u8fd0\u884cHTML\u4ee3\u7801<\/h2>\n
\u5982\u679c\u8bf4\u4e0a\u9762\u90a3\u6761\u5c0f\u79d8\u5bc6\u77e5\u9053\u7684\u4eba\u8fd8\u7b97\u591a\u7684\u8bdd\uff0c\u8fd9\u6761\u79d8\u7b08\u77e5\u9053\u7684\u4eba\u5c31\u8981\u5c11\u4e00\u4e9b\u4e86\uff0c\u5728\u975eIE\u5185\u6838\u7684\u6d4f\u89c8\u5668\u5730\u5740\u680f\u53ef\u4ee5\u76f4\u63a5\u8fd0\u884cHTML\u4ee3\u7801\uff01<\/p>\n
\u6bd4\u5982\u5728\u5730\u5740\u680f\u8f93\u5165\u4ee5\u4e0b\u4ee3\u7801\u7136\u540e\u56de\u8f66\u8fd0\u884c\uff0c\u4f1a\u51fa\u73b0\u6307\u5b9a\u7684\u9875\u9762\u5185\u5bb9\u3002<\/p>\n
\n
data<\/span>:<\/span>text<\/span>\/<\/span>html<\/span>,<\/span><<\/span>h1<\/span>><\/span>Hello<\/span>,<\/span> world<\/span>!<\/span><\/<\/span>h1<\/span>><\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u4f60\u9020\u4e48\uff0c\u53ef\u4ee5\u628a\u6d4f\u89c8\u5668\u5f53\u7f16\u8f91\u5668<\/h2>\n
\u8fd8\u662f\u6d4f\u89c8\u5668\u5730\u5740\u680f\u4e0a\u505a\u6587\u7ae0\uff0c\u5c06\u4ee5\u4e0b\u4ee3\u7801\u8d34\u5230\u5730\u5740\u680f\u8fd0\u884c\u540e\u6d4f\u89c8\u5668\u53d8\u6210\u4e86\u4e00\u4e2a\u539f\u59cb\u800c\u7b80\u5355\u7684\u7f16\u8f91\u5668\uff0c\u4e0eWindows\u81ea\u5e26\u7684notepad\u4e00\u6837\uff0c\u543c\u543c\u3002<\/p>\n
\n
data<\/span>:<\/span>text<\/span>\/<\/span>html<\/span>,<\/span> <<\/span>html<\/span> contenteditable<\/span>><\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u5f52\u6839\u7ed3\u5e95\u591a\u4e8f\u4e86HTML5\u4e2d\u65b0\u52a0\u7684contenteditable\u5c5e\u6027\uff0c\u5f53\u5143\u7d20\u6307\u5b9a\u4e86\u8be5\u5c5e\u6027\u540e\uff0c\u5143\u7d20\u7684\u5185\u5bb9\u6210\u4e3a\u53ef\u7f16\u8f91\u72b6\u6001\u3002<\/p>\n
\u63a8\u800c\u5e7f\u4e4b\uff0c\u5c06\u4ee5\u4e0b\u4ee3\u7801\u653e\u5230console\u6267\u884c\u540e\uff0c\u6574\u4e2a\u9875\u9762\u5c06\u53d8\u5f97\u53ef\u7f16\u8f91\uff0c\u968f\u610f\u8df5\u8e0f\u5427~<\/p>\n
\n
document<\/span>.<\/span>body<\/span>.<\/span>contentEditable<\/span>=<\/span>'true'<\/span>;<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u5229\u7528a\u6807\u7b7e\u81ea\u52a8\u89e3\u6790URL<\/h2>\n
\u5f88\u591a\u65f6\u5019\u6211\u4eec\u6709\u4ece\u4e00\u4e2aURL\u4e2d\u63d0\u53d6\u57df\u540d\uff0c\u67e5\u8be2\u5173\u952e\u5b57\uff0c\u53d8\u91cf\u53c2\u6570\u503c\u7b49\u7684\u9700\u8981\uff0c\u800c\u4e07\u4e07\u6ca1\u60f3\u5230\u53ef\u4ee5\u8ba9\u6d4f\u89c8\u5668\u65b9\u4fbf\u5730\u5e2e\u6211\u4eec\u5b8c\u6210\u8fd9\u4e00\u4efb\u52a1\u800c\u4e0d\u7528\u6211\u4eec\u5199\u6b63\u5219\u53bb\u6293\u53d6\u3002\u65b9\u6cd5\u5c31\u5728JS\u4ee3\u7801\u91cc\u5148\u521b\u5efa\u4e00\u4e2aa\u6807\u7b7e\u7136\u540e\u5c06\u9700\u8981\u89e3\u6790\u7684URL\u8d4b\u503c\u7ed9a\u7684href\u5c5e\u6027\uff0c\u7136\u540e\u5c31\u5f97\u5230\u4e86\u4e00\u5207\u6211\u4eec\u60f3\u8981\u7684\u4e86\u3002<\/p>\n
\n
var<\/span> a<\/span> =<\/span> document<\/span>.<\/span>createElement<\/span>(<\/span>'a'<\/span>);<\/span>\r\n a<\/span>.<\/span>href<\/span> =<\/span> 'http:\/\/www.cnblogs.com\/wayou\/p\/'<\/span>;<\/span>\r\n console<\/span>.<\/span>log<\/span>(<\/span>a<\/span>.<\/span>host<\/span>);<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u5229\u7528\u8fd9\u4e00\u539f\u7406\uff0c\u7a0d\u5fae\u6269\u5c55\u4e00\u4e0b\uff0c\u5c31\u5f97\u5230\u4e86\u4e00\u4e2a\u66f4\u52a0\u5065\u58ee\u7684\u89e3\u6790URL\u5404\u90e8\u5206\u7684\u901a\u7528\u65b9\u6cd5\u4e86\u3002\u4e0b\u9762\u4ee3\u7801\u6765\u81eaJames\u7684\u535a\u5ba2\u3002<\/p>\n
\n
function<\/span> parseURL<\/span>(<\/span>url<\/span>)<\/span> {<\/span>\r\n    var<\/span> a<\/span> =<\/span>  document<\/span>.<\/span>createElement<\/span>(<\/span>'a'<\/span>);<\/span>\r\n    a<\/span>.<\/span>href<\/span> =<\/span> url<\/span>;<\/span>\r\n    return<\/span> {<\/span>\r\n        source<\/span>:<\/span> url<\/span>,<\/span>\r\n        protocol<\/span>:<\/span> a<\/span>.<\/span>protocol<\/span>.<\/span>replace<\/span>(<\/span>':'<\/span>,<\/span>''<\/span>),<\/span>\r\n        host<\/span>:<\/span> a<\/span>.<\/span>hostname<\/span>,<\/span>\r\n        port<\/span>:<\/span> a<\/span>.<\/span>port<\/span>,<\/span>\r\n        query<\/span>:<\/span> a<\/span>.<\/span>search<\/span>,<\/span>\r\n        params<\/span>:<\/span> (<\/span>function<\/span>(){<\/span>\r\n            var<\/span> ret<\/span> =<\/span> {},<\/span>\r\n                seg<\/span> =<\/span> a<\/span>.<\/span>search<\/span>.<\/span>replace<\/span>(<\/span>\/^?\/<\/span>,<\/span>''<\/span>).<\/span>split<\/span>(<\/span>'&'<\/span>),<\/span>\r\n                len<\/span> =<\/span> seg<\/span>.<\/span>length<\/span>,<\/span> i<\/span> =<\/span> 0<\/span>,<\/span> s<\/span>;<\/span>\r\n            for<\/span> (;<\/span>i<\/span><<\/span>len<\/span>;<\/span>i<\/span>++<\/span>)<\/span> {<\/span>\r\n                if<\/span> (<\/span>!<\/span>seg<\/span>[<\/span>i<\/span>])<\/span> {<\/span> continue<\/span>;<\/span> }<\/span>\r\n                s<\/span> =<\/span> seg<\/span>[<\/span>i<\/span>].<\/span>split<\/span>(<\/span>'='<\/span>);<\/span>\r\n                ret<\/span>[<\/span>s<\/span>[<\/span>0<\/span>]]<\/span> =<\/span> s<\/span>[<\/span>1<\/span>];<\/span>\r\n            }<\/span>\r\n            return<\/span> ret<\/span>;<\/span>\r\n        })(),<\/span>\r\n        file<\/span>:<\/span> (<\/span>a<\/span>.<\/span>pathname<\/span>.<\/span>match<\/span>(<\/span>\/\/([^\/?#]+)$\/<\/span>i<\/span>)<\/span> ||<\/span> [,<\/span>''<\/span>])[<\/span>1<\/span>],<\/span>\r\n        hash<\/span>:<\/span> a<\/span>.<\/span>hash<\/span>.<\/span>replace<\/span>(<\/span>'#'<\/span>,<\/span>''<\/span>),<\/span>\r\n        path<\/span>:<\/span> a<\/span>.<\/span>pathname<\/span>.<\/span>replace<\/span>(<\/span>\/^([^\/])\/<\/span>,<\/span>'\/$1'<\/span>),<\/span>\r\n        relative<\/span>:<\/span> (<\/span>a<\/span>.<\/span>href<\/span>.<\/span>match<\/span>(<\/span>\/tps?:\/\/[^\/]+(.+)\/<\/span>)<\/span> ||<\/span> [,<\/span>''<\/span>])[<\/span>1<\/span>],<\/span>\r\n        segments<\/span>:<\/span> a<\/span>.<\/span>pathname<\/span>.<\/span>replace<\/span>(<\/span>\/^\/\/<\/span>,<\/span>''<\/span>).<\/span>split<\/span>(<\/span>'\/'<\/span>)<\/span>\r\n    };<\/span>\r\n}<\/span>\r\n<\/pre>\n<\/div>\n
\u9875\u9762\u62e5\u6709ID\u7684\u5143\u7d20\u4f1a\u521b\u5efa\u5168\u5c40\u53d8\u91cf<\/h2>\n
\u5728\u4e00\u5f20HTML\u9875\u9762\u4e2d\uff0c\u6240\u6709\u8bbe\u7f6e\u4e86ID\u5c5e\u6027\u7684\u5143\u7d20\u4f1a\u5728JavaScript\u7684\u6267\u884c\u73af\u5883\u4e2d\u521b\u5efa\u5bf9\u5e94\u7684\u5168\u5c40\u53d8\u91cf\uff0c\u8fd9\u610f\u5473\u7740document.getElementById\u50cf\u4eba\u7684\u9611\u5c3e\u4e00\u6837\u663e\u5f97\u591a\u4f59\u4e86\u3002\u4f46\u5b9e\u9645\u9879\u76ee\u4e2d\u6700\u597d\u8001\u8001\u5b9e\u5b9e\u8be5\u600e\u4e48\u5199\u5c31\u600e\u4e48\u5199\uff0c\u6bd5\u7adf\u5e38\u89c4\u4ee3\u7801\u51fa\u4e71\u5b50\u7684\u673a\u4f1a\u8981\u5c0f\u5f97\u591a\u3002<\/p>\n
\n
<div<\/span> id<\/span>=<\/span>\"sample\"<\/span>><\/div><\/span>\r\n<script<\/span> type<\/span>=<\/span>\"text\/javascript\"<\/span>><\/span>\r\n        console<\/span>.<\/span>log<\/span>(<\/span>sample<\/span>);<\/span>\r\n<\/script><\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u52a0\u8f7dCDN\u6587\u4ef6\u65f6\uff0c\u53ef\u4ee5\u7701\u6389HTTP\u6807\u8bc6<\/h2>\n
\u73b0\u5728\u5f88\u6d41\u884c\u7684CDN\u5373\u4ece\u4e13\u95e8\u7684\u670d\u52a1\u5668\u52a0\u8f7d\u4e00\u4e9b\u901a\u7528\u7684JS\u548cCSS\u6587\u4ef6\uff0c\u51fa\u4e8e\u5b89\u5168\u8003\u8651\u6709\u7684CDN\u670d\u52a1\u5668\u4f7f\u7528HTTPS\u65b9\u5f0f\u8fde\u63a5\uff0c\u800c\u6709\u7684\u662f\u4f20\u7edf\u7684HTTP\uff0c\u5176\u5b9e\u6211\u4eec\u5728\u4f7f\u7528\u65f6\u53ef\u4ee5\u5ffd\u7565\u6389\u8fd9\u4e2a\uff0c\u5c06\u5b83\u4eceURL\u4e2d\u7701\u53bb\u3002<\/p>\n
\n
<script<\/span> src<\/span>=<\/span>\"\/\/domain.com\/path\/to\/script.js\"<\/span>><\/script><\/span>\r\n<\/pre>\n<\/div>\n
\u8fd9\u4e00\u70b9\u5728\u4e4b\u524d\u4e00\u7bc7\u8bd1\u6587\u535a\u5ba2\u300ajQuery\u7f16\u7a0b\u6700\u4f73\u5b9e\u8df5\u300b\u4e2d\u4e5f\u6709\u63d0\u5230\u3002<\/p>\n
\u5229\u7528script\u6807\u7b7e\u4fdd\u5b58\u4efb\u610f\u4fe1\u606f<\/h2>\n
\u5c06script\u6807\u7b7e\u8bbe\u7f6e\u4e3atype=\u2019text\u2019\u7136\u540e\u53ef\u4ee5\u5728\u91cc\u9762\u4fdd\u5b58\u4efb\u610f\u4fe1\u606f\uff0c\u4e4b\u540e\u53ef\u4ee5\u5728JavaScript\u4ee3\u7801\u4e2d\u5f88\u65b9\u4fbf\u5730\u83b7\u53d6\u3002<\/p>\n
\n
<script<\/span> type<\/span>=<\/span>\"text\"<\/span> id<\/span>=<\/span>\"template\"<\/span>><\/span>\r\n\t<<\/span>h1<\/span>><\/span>This<\/span> won<\/span>'<\/span>t display<\/span><\/<\/span>h1<\/span>><\/span>\r\n<\/script><\/span>\r\n<\/pre>\n<\/div>\n
\n
var<\/span> text<\/span> =<\/span> document<\/span>.<\/span>getElementById<\/span>(<\/span>'template'<\/span>).<\/span>innerHTML<\/span>\r\n<\/pre>\n<\/div>\n
CSS\u7bc7<\/h1>\n
\u5173\u4e8eCSS\u7684\u6076\u4f5c\u5267<\/h2>\n
\u76f8\u4fe1\u4f60\u770b\u5b8c\u4ee5\u4e0b\u4ee3\u7801\u540e\u80fd\u591f\u9884\u6599\u5230\u4f1a\u51fa\u73b0\u4ec0\u4e48\u6548\u679c\u3002<\/p>\n
\n
*<\/span>{<\/span>\r\n    cursor<\/span>:<\/span> none<\/span>!<\/span>important<\/span>;<\/span>\r\n}<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u7b80\u5355\u7684\u6587\u5b57\u6a21\u7cca\u6548\u679c<\/h2>\n
\u4ee5\u4e0b\u4e24\u884c\u7b80\u5355\u7684CSS3\u4ee3\u7801\u53ef\u8fbe\u5230\u5c06\u6587\u5b57\u6a21\u7cca\u5316\u5904\u7406\u7684\u76ee\u7684\uff0c\u51fa\u6765\u7684\u6548\u679c\u6709\u70b9\u50cf\u4f7f\u7528PS\u7684\u6ee4\u955c\uff0cso cool!<\/p>\n
\n
p<\/span> {<\/span>\r\n    color<\/span>:<\/span> transparent<\/span>;<\/span>\r\n    text<\/span>-<\/span>shadow<\/span>:<\/span> #111<\/span> 0<\/span> 0<\/span> 5px<\/span>;<\/span>\r\n}<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u5782\u76f4\u5c45\u4e2d<\/h2>\n
\u6709\u597d\u591a\u6b21\u535a\u4e3b\u90fd\u6709\u8fd9\u6837\u7684\u9700\u6c42\uff0c\u5782\u76f4\u5c45\u4e2d\u663e\u793a\u67d0\u4e2aDIV\uff0c\u6211\u4eec\u77e5\u9053CSS\u4e2d\u5929\u7136\u6709\u6c34\u5e73\u5c45\u4e2d\u7684\u6837\u5f0ftext-align:center\u3002\u552f\u72ec\u8fd9\u4e2a\u5782\u76f4\u5c45\u4e2d\u65e0\u89e3\u3002<\/p>\n
\u5f53\u7136\u4f60\u53ef\u4ee5\u5c06\u5bb9\u5668\u8bbe\u7f6e\u4e3adisplay:table\uff0c\u7136\u540e\u5c06\u5b50\u5143\u7d20\u4e5f\u5c31\u662f\u8981\u5782\u76f4\u5c45\u4e2d\u663e\u793a\u7684\u5143\u7d20\u8bbe\u7f6e\u4e3adisplay:table-cell\uff0c\u7136\u540e\u52a0\u4e0avertical-align:middle\u6765\u5b9e\u73b0\uff0c\u4f46\u6b64\u79cd\u5b9e\u73b0\u5f80\u5f80\u4f1a\u56e0\u4e3adisplay\uff1atable\u800c\u7834\u574f\u6574\u4f53\u5e03\u5c40\uff0c\u90a3\u8fd8\u4e0d\u5982\u76f4\u63a5\u7528table\u6807\u7b7e\u4e86\u5462\u3002<\/p>\n
\u4e0b\u9762\u8fd9\u4e2a\u6837\u5f0f\u5229\u7528\u4e86translate\u6765\u5de7\u5999\u5b9e\u73b0\u4e86\u5782\u76f4\u5c45\u4e2d\u6837\u5f0f\uff0c\u9700IE9+\u3002<\/p>\n
\n
.<\/span>center<\/span>-<\/span>vertical<\/span> {<\/span>\r\n    position<\/span>:<\/span> relative<\/span>;<\/span>\r\n    top<\/span>:<\/span> 50<\/span>%<\/span>;<\/span>\r\n    transform<\/span>:<\/span> translateY<\/span>(<\/span>-<\/span>50<\/span>%<\/span>);<\/span>\r\n}<\/span>\r\n<\/pre>\n<\/div>\n
\u76f8\u6bd4\u800c\u8a00\uff0c\u6c34\u5e73\u5c45\u4e2d\u8981\u7b80\u5355\u5f97\u591a\uff0c\u50cf\u4e0a\u9762\u63d0\u5230\u7684text-align:center\uff0c\u7ecf\u5e38\u7528\u5230\u7684\u6280\u5de7\u8fd8\u6709margin:0 auto\u3002\u4f46\u5bf9\u4e8emargin\u5927\u6cd5\u4e5f\u53ea\u5728\u5b50\u5143\u7d20\u5bbd\u5ea6\u5c0f\u4e8e\u5bb9\u5668\u5bbd\u5ea6\u65f6\u7ba1\u7528\uff0c\u5f53\u5b50\u5143\u7d20\u5bbd\u5ea6\u5927\u4e8e\u5bb9\u5668\u5bbd\u5ea6\u65f6\u6b64\u6cd5\u5931\u6548\u3002<\/p>\n
\u5982\u6cd5\u70ae\u5236\uff0c\u5229\u7528left\u548ctransform\u540c\u6837\u53ef\u5b9e\u73b0\u6c34\u5e73\u5c45\u4e2d\uff0c\u4e0d\u8fc7\u610f\u4e49\u4e0d\u5927\uff0c\u6bd5\u7adftext-align\u548cmargin\u5dee\u4e0d\u591a\u6ee1\u8db3\u9700\u6c42\u4e86\u3002<\/p>\n
\n
.<\/span>center<\/span>-<\/span>horizontal<\/span> {<\/span>\r\n    position<\/span>:<\/span> relative<\/span>;<\/span>\r\n    left<\/span>:<\/span> 50<\/span>%<\/span>;<\/span>\r\n    transform<\/span>:<\/span> translateX<\/span>(<\/span>-<\/span>50<\/span>%<\/span>);<\/span> \r\n}<\/span>\r\n<\/pre>\n<\/div>\n
\u591a\u91cd\u8fb9\u6846<\/h2>\n
\u5229\u7528\u91cd\u590d\u6307\u5b9abox-shadow\u6765\u8fbe\u5230\u591a\u4e2a\u8fb9\u6846\u7684\u6548\u679c<\/p>\n
\u5728\u7ebf\u6f14\u793a<\/p>\n
\n
\/*CSS Border with Box-Shadow Example*\/<\/span>\r\ndiv<\/span> {<\/span>\r\n    box<\/span>-<\/span>shadow<\/span>:<\/span> 0<\/span> 0<\/span> 0<\/span> 6px<\/span> rgba<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>.<\/span>2<\/span>)<\/span>,<\/span> 0<\/span> 0<\/span> 0<\/span> 12px<\/span> rgba<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>.<\/span>2<\/span>)<\/span>,<\/span> 0<\/span> 0<\/span> 0<\/span> 18px<\/span> rgba<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>.<\/span>2<\/span>)<\/span>,<\/span> 0<\/span> 0<\/span> 0<\/span> 24px<\/span> rgba<\/span>(<\/span>0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>,<\/span> 0<\/span>.<\/span>2<\/span>);<\/span>\r\n    height<\/span>:<\/span> 200px<\/span>;<\/span>\r\n    margin<\/span>:<\/span> 50px<\/span> auto<\/span>;<\/span>\r\n    width<\/span>:<\/span> 400px<\/span>\r\n}<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u5b9e\u65f6\u7f16\u8f91CSS<\/h2>\n
\u901a\u8fc7\u8bbe\u7f6estyle\u6807\u7b7e\u7684display:block\u6837\u5f0f\u53ef\u4ee5\u8ba9\u9875\u9762\u7684style\u6807\u7b7e\u663e\u793a\u51fa\u6765\uff0c\u5e76\u4e14\u52a0\u4e0acontentEditable\u5c5e\u6027\u540e\u53ef\u4ee5\u8ba9\u6837\u5f0f\u6210\u4e3a\u53ef\u7f16\u8f91\u72b6\u6001\uff0c\u66f4\u6539\u540e\u7684\u6837\u5f0f\u6548\u679c\u4e5f\u662f\u5b9e\u65f6\u66f4\u65b0\u5448\u73b0\u7684\u3002\u6b64\u6280\u5de7\u5728IE\u4e0b\u65e0\u6548\u3002\u62e5\u6709\u6b64\u6280\u80fd\u8005\uff0c\u9006\u5929\u4e5f\uff01<\/p>\n
\n
<!DOCTYPE html><\/span>\r\n<html><\/span>\r\n    <body><\/span>\r\n        <style<\/span> style<\/span>=<\/span>\"<\/span>display<\/span>:<\/span>block<\/span>\"<\/span> contentEditable<\/span>><\/span>\r\n        \tbody<\/span> {<\/span> color<\/span>:<\/span> blue<\/span> }<\/span>\r\n        <\/style><\/span>\r\n    <\/body><\/span>\r\n<\/html><\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u521b\u5efa\u957f\u5bbd\u6bd4\u56fa\u5b9a\u7684\u5143\u7d20<\/h2>\n
\u901a\u8fc7\u8bbe\u7f6e\u7236\u7ea7\u7a97\u53e3\u7684padding-bottom\u53ef\u4ee5\u8fbe\u5230\u8ba9\u5bb9\u5668\u4fdd\u6301\u4e00\u5b9a\u7684\u957f\u5ea6\u6bd4\u7684\u76ee\u7684\uff0c\u8fd9\u5728\u54cd\u5e94\u5f0f\u9875\u9762\u8bbe\u8ba1\u4e2d\u6bd4\u8f83\u6709\u7528\uff0c\u80fd\u591f\u4fdd\u6301\u5143\u7d20\u4e0d\u53d8\u5f62\u3002<\/p>\n
\n
<div<\/span> style<\/span>=<\/span>\"<\/span>width<\/span>:<\/span> 100<\/span>%;<\/span> position<\/span>:<\/span> relative<\/span>;<\/span> padding<\/span>-<\/span>bottom<\/span>:<\/span> 20<\/span>%;<\/span>\"<\/span>><\/span>\r\n    <div<\/span> style<\/span>=<\/span>\"<\/span>position<\/span>:<\/span> absolute<\/span>;<\/span> left<\/span>:<\/span> 0<\/span>;<\/span> top<\/span>:<\/span> 0<\/span>;<\/span> right<\/span>:<\/span> 0<\/span>;<\/span> bottom<\/span>:<\/span> 0<\/span>;<\/span>background<\/span>-<\/span>color<\/span>:<\/span>yellow<\/span>;<\/span>\"<\/span>><\/span>\r\n        this content will have a constant aspect ratio that varies based on the width.\r\n    <\/span><\/div><\/span>\r\n<\/div><\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
CSS\u4e2d\u4e5f\u53ef\u4ee5\u505a\u7b80\u5355\u8fd0\u7b97<\/h2>\n
\u901a\u8fc7CSS\u4e2d\u7684calc\u65b9\u6cd5\u53ef\u4ee5\u8fdb\u884c\u4e00\u4e9b\u7b80\u5355\u7684\u8fd0\u7b97\uff0c\u4ece\u800c\u8fbe\u5230\u52a8\u6001\u6307\u5b9a\u5143\u7d20\u6837\u5f0f\u7684\u76ee\u7684\u3002<\/p>\n
\n
.<\/span>container<\/span>{<\/span>\r\n\tbackground<\/span>-<\/span>position<\/span>:<\/span> calc<\/span>(<\/span>100<\/span>%<\/span> -<\/span> 50px<\/span>)<\/span> calc<\/span>(<\/span>100<\/span>%<\/span> -<\/span> 20px<\/span>);<\/span>\r\n}<\/span>\r\n<\/pre>\n<\/div>\n
JavaScript\u7bc7<\/h1>\n
\u751f\u6210\u968f\u673a\u5b57\u7b26\u4e32<\/h2>\n
\u5229\u7528Math.random\u548ctoString\u751f\u6210\u968f\u673a\u5b57\u7b26\u4e32\uff0c\u6765\u81ea\u524d\u4e00\u9635\u5b50\u770b\u5230\u7684\u4e00\u7bc7\u535a\u6587\u3002\u8fd9\u91cc\u7684\u6280\u5de7\u662f\u5229\u7528\u4e86toString\u65b9\u6cd5\u53ef\u4ee5\u63a5\u6536\u4e00\u4e2a\u57fa\u6570\u4f5c\u4e3a\u53c2\u6570\u7684\u539f\u7406\uff0c\u8fd9\u4e2a\u57fa\u6570\u4ece2\u523036\u5c01\u9876\u3002\u5982\u679c\u4e0d\u6307\u5b9a\uff0c\u9ed8\u8ba4\u57fa\u6570\u662f10\u8fdb\u5236\u3002\u7565\u5c4c\uff01<\/p>\n
\n
function<\/span> generateRandomAlphaNum<\/span>(<\/span>len<\/span>)<\/span> {<\/span>\r\n    var<\/span> rdmString<\/span> =<\/span> \"\"<\/span>;<\/span>\r\n    for<\/span> (;<\/span> rdmString<\/span>.<\/span>length<\/span> <<\/span> len<\/span>;<\/span> rdmString<\/span> +=<\/span> Math<\/span>.<\/span>random<\/span>().<\/span>toString<\/span>(<\/span>36<\/span>).<\/span>substr<\/span>(<\/span>2<\/span>));<\/span>\r\n    return<\/span> rdmString<\/span>.<\/span>substr<\/span>(<\/span>0<\/span>,<\/span> len<\/span>);<\/span>\r\n}<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u6574\u6570\u7684\u64cd\u4f5c<\/h2>\n
JavaScript\u4e2d\u662f\u6ca1\u6709\u6574\u578b\u6982\u5ff5\u7684\uff0c\u4f46\u5229\u7528\u597d\u4f4d\u64cd\u4f5c\u7b26\u53ef\u4ee5\u8f7b\u677e\u5904\u7406\uff0c\u540c\u65f6\u83b7\u5f97\u6548\u7387\u4e0a\u7684\u63d0\u5347\u3002<\/p>\n
|0\u548c~~\u662f\u5f88\u597d\u7684\u4e00\u4e2a\u4f8b\u5b50\uff0c\u4f7f\u7528\u8fd9\u4e24\u8005\u53ef\u4ee5\u5c06\u6d6e\u70b9\u8f6c\u6210\u6574\u578b\u4e14\u6548\u7387\u65b9\u9762\u8981\u6bd4\u540c\u7c7b\u7684parseInt,Math.round\u00a0\u8981\u5feb\u3002\u5728\u5904\u7406\u50cf\u7d20\u53ca\u52a8\u753b\u4f4d\u79fb\u7b49\u6548\u679c\u7684\u65f6\u5019\u4f1a\u5f88\u6709\u7528\u3002\u6027\u80fd\u6bd4\u8f83\u89c1\u6b64\u3002<\/p>\n
\n
var<\/span> foo<\/span> =<\/span> (<\/span>12.4<\/span> \/<\/span> 4.13<\/span>)<\/span> |<\/span> 0<\/span>;<\/span>\/\/\u7ed3\u679c\u4e3a3<\/span>\r\nvar<\/span> bar<\/span> =<\/span> ~~<\/span>(<\/span>12.4<\/span> \/<\/span> 4.13<\/span>);<\/span>\/\/\u7ed3\u679c\u4e3a3<\/span>\r\n<\/pre>\n<\/div>\n
\u987a\u4fbf\u8bf4\u53e5\uff0c!!\u5c06\u4e00\u4e2a\u503c\u65b9\u4fbf\u5feb\u901f\u8f6c\u5316\u4e3a\u5e03\u5c14\u503c\u00a0!!window===true\u00a0\u3002<\/p>\n
\u91cd\u5199\u539f\u751f\u6d4f\u89c8\u5668\u65b9\u6cd5\u4ee5\u5b9e\u73b0\u65b0\u529f\u80fd<\/h2>\n
\u4e0b\u8f7d\u7684\u4ee3\u7801\u901a\u8fc7\u91cd\u5199\u6d4f\u89c8\u5668\u7684alert\u8ba9\u5b83\u53ef\u4ee5\u8bb0\u5f55\u5f39\u7a97\u7684\u6b21\u6570\u3002<\/p>\n
\n
(<\/span>function<\/span>()<\/span> {<\/span>\r\n    var<\/span> oldAlert<\/span> =<\/span> window<\/span>.<\/span>alert<\/span>,<\/span>\r\n        count<\/span> =<\/span> 0<\/span>;<\/span>\r\n    window<\/span>.<\/span>alert<\/span> =<\/span> function<\/span>(<\/span>a<\/span>)<\/span> {<\/span>\r\n        count<\/span>++<\/span>;<\/span>\r\n        oldAlert<\/span>(<\/span>a<\/span> +<\/span> \"n You've called alert \"<\/span> +<\/span> count<\/span> +<\/span> \" times now. Stop, it's evil!\"<\/span>);<\/span>\r\n    };<\/span>\r\n})();<\/span>\r\nalert<\/span>(<\/span>\"Hello World\"<\/span>);<\/span>\r\n<\/pre>\n<\/div>\n
\u5173\u4e8econsole\u7684\u6076\u4f5c\u5267<\/h2>\n
\u5173\u4e8e\u91cd\u5199\u539f\u751f\u65b9\u6cd5\uff0c\u8fd9\u91cc\u6709\u4e2a\u6076\u4f5c\u5267\u5927\u5bb6\u53ef\u4ee5\u62ff\u53bb\u5bfb\u5f00\u5fc3\u3002Chrome\u7684console.log\u662f\u652f\u6301\u5bf9\u6587\u5b57\u6dfb\u52a0\u6837\u5f0f\u7684\uff0c\u751a\u81f3log\u56fe\u7247\u90fd\u53ef\u4ee5\u3002\u4e8e\u662f\u53ef\u4ee5\u91cd\u5199\u6389\u9ed8\u8ba4\u7684log\u65b9\u6cd5\uff0c\u628a\u5c06\u8981log\u7684\u6587\u5b57\u5e94\u7528\u5230CSS\u7684\u6a21\u7cca\u6548\u679c\uff0c\u8fd9\u6837\u5f53\u6709\u4eba\u8bd5\u56fe\u8c03\u7528console.log()\u7684\u65f6\u5019\uff0c\u51fa\u6765\u7684\u662f\u6a21\u7cca\u4e0d\u6e05\u7684\u6587\u5b57\u3002\u597d\u51b7\uff0c\u6211\u8868\u793a\u6ca1\u6709\u7b11\u3002<\/p>\n
\u662f\u4ece\u8fd9\u7bc7G+\u5e16\u5b50\u7684\u8bc4\u8bba\u91cc\u770b\u5230\u7684\u3002\u4f7f\u7528\u4e4b\u540e\u7684\u6548\u679c\u662f\u518d\u6b21\u8c03\u7528log\u4f1a\u8f93\u51fa\u5b57\u8ff9\u6a21\u7cca\u4e0d\u6e05\u7684\u6587\u5b57\u3002<\/p>\n
\n
var<\/span> _log<\/span> =<\/span> console<\/span>.<\/span>log<\/span>;<\/span>\r\nconsole<\/span>.<\/span>log<\/span> =<\/span> function<\/span>()<\/span> {<\/span>\r\n  _log<\/span>.<\/span>call<\/span>(<\/span>console<\/span>,<\/span> '%c'<\/span> +<\/span> [].<\/span>slice<\/span>.<\/span>call<\/span>(<\/span>arguments<\/span>).<\/span>join<\/span>(<\/span>' '<\/span>),<\/span> 'color:transparent;text-shadow:0 0 2px rgba(0,0,0,.5);'<\/span>);<\/span>\r\n};<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u4e0d\u58f0\u660e\u7b2c\u4e09\u4e2a\u53d8\u91cf\u7684\u503c\u4ea4\u6362<\/h2>\n
\u6211\u4eec\u90fd\u77e5\u9053\u4ea4\u6362\u4e24\u4e2a\u53d8\u91cf\u503c\u7684\u5e38\u89c4\u505a\u6cd5\uff0c\u90a3\u5c31\u662f\u58f0\u660e\u4e00\u4e2a\u4e2d\u95f4\u53d8\u91cf\u6765\u6682\u5b58\u3002\u4f46\u9c9c\u6709\u4eba\u53bb\u6311\u6218\u4e0d\u58f0\u660e\u4e2d\u95f4\u53d8\u91cf\u7684\u60c5\u51b5\uff0c\u4e0b\u9762\u7684\u4ee3\u7801\u7ed9\u51fa\u4e86\u8fd9\u79cd\u5b9e\u73b0\u3002\u86ee\u6709\u521b\u610f \u7684\u3002<\/p>\n
\n
var<\/span> a<\/span>=<\/span>1<\/span>,<\/span>b<\/span>=<\/span>2<\/span>;<\/span>a<\/span>=<\/span>[<\/span>b<\/span>,<\/span>b<\/span>=<\/span>a<\/span>][<\/span>0<\/span>];<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n
\u4e07\u7269\u7686\u5bf9\u8c61<\/h2>\n
\u5728JavaScript\u7684\u4e16\u754c\uff0c\u4e07\u7269\u7686\u5bf9\u8c61\u3002\u9664\u4e86null\u548cundefined\uff0c\u5176\u4ed6\u57fa\u672c\u7c7b\u578b\u6570\u5b57\uff0c\u5b57\u7b26\u4e32\u548c\u5e03\u5c14\u503c\u90fd\u6709\u5bf9\u5e94\u6709\u5305\u88c5\u5bf9\u8c61\u3002\u5bf9\u8c61\u7684\u4e00\u4e2a\u7279\u5f81\u662f\u4f60\u53ef\u4ee5\u5728\u5b83\u8eab\u4e0a\u76f4\u63a5\u8c03\u7528\u65b9\u6cd5\u3002\u5bf9\u4e8e\u6570\u5b57\u57fa\u672c\u7c7b\u578b\uff0c\u5f53\u8bd5\u56fe\u5728\u5176\u8eab\u4e0a\u8c03\u7528toString\u65b9\u6cd5\u4f1a\u5931\u8d25\uff0c\u4f46\u7528\u62ec\u53f7\u62ec\u8d77\u6765\u540e\u518d\u8c03\u7528\u5c31\u4e0d\u4f1a\u5931\u8d25\u4e86\uff0c\u5185\u90e8\u5b9e\u73b0\u662f\u7528\u76f8\u5e94\u7684\u5305\u88c5\u5bf9\u8c61\u5c06\u57fa\u672c\u7c7b\u578b\u8f6c\u4e3a\u5bf9\u8c61\u3002\u6240\u4ee5(1).toString()\u76f8\u5f53\u4e8enew Number(1).toString()\u3002\u56e0\u6b64\uff0c\u4f60\u7684\u786e\u53ef\u4ee5\u628a\u57fa\u672c\u7c7b\u578b\u6570\u5b57\uff0c\u5b57\u7b26\u4e32\uff0c\u5e03\u5c14\u7b49\u5f53\u5bf9\u8c61\u4f7f\u7528\u7684\uff0c\u53ea\u662f\u6ce8\u610f\u8bed\u6cd5\u8981\u5f97\u4f53\u3002<\/p>\n
\u540c\u65f6\u6211\u4eec\u6ce8\u610f\u5230\uff0cJavaScript\u4e2d\u6570\u5b57\u662f\u4e0d\u5206\u6d6e\u70b9\u548c\u6574\u5f62\u7684\uff0c\u6240\u6709\u6570\u5b57\u5176\u5b9e\u5747\u662f\u6d6e\u70b9\u7c7b\u578b\uff0c\u53ea\u662f\u628a\u5c0f\u6570\u70b9\u7701\u7565\u4e86\u800c\u4ee5\uff0c\u6bd4\u5982\u4f60\u770b\u5230\u76841\u53ef\u4ee5\u5199\u62101.\uff0c\u8fd9\u4e5f\u5c31\u662f\u4e3a\u4ec0\u4e48\u5f53\u4f60\u8bd5\u56fe1.toString()\u65f6\u4f1a\u62a5\u9519\uff0c\u6240\u4ee5\u6b63\u786e\u7684\u5199\u6cd5\u5e94\u8be5\u662f\u8fd9\u6837\uff1a1..toString()\uff0c\u6216\u8005\u5982\u4e0a\u9762\u6240\u8ff0\u52a0\u4e0a\u62ec\u53f7\uff0c\u8fd9\u91cc\u62ec\u53f7\u7684\u4f5c\u7528\u662f\u7ea0\u6b63JS\u89e3\u6790\u5668\uff0c\u4e0d\u8981\u628a1\u540e\u9762\u7684\u70b9\u5f53\u6210\u5c0f\u6570\u70b9\u3002\u5185\u90e8\u5b9e\u73b0\u5982\u4e0a\u9762\u6240\u8ff0\uff0c\u662f\u5c061.\u7528\u5305\u88c5\u5bf9\u8c61\u8f6c\u6210\u5bf9\u8c61\u518d\u8c03\u7528\u65b9\u6cd5\u3002<\/p>\n
If\u8bed\u53e5\u7684\u53d8\u5f62<\/h2>\n
\u5f53\u4f60\u9700\u8981\u5199\u4e00\u4e2aif\u8bed\u53e5\u7684\u65f6\u5019\uff0c\u4e0d\u59a8\u5c1d\u8bd5\u53e6\u4e00\u79cd\u66f4\u7b80\u4fbf\u7684\u65b9\u6cd5\uff0c\u7528JavaScript\u4e2d\u7684\u903b\u8f91\u64cd\u4f5c\u7b26\u6765\u4ee3\u66ff\u3002<\/p>\n
\n
var<\/span> day<\/span>=<\/span>(<\/span>new<\/span> Date<\/span>).<\/span>getDay<\/span>()<\/span>===<\/span>0<\/span>;<\/span>\r\n\/\/\u4f20\u7edfif\u8bed\u53e5<\/span>\r\nif<\/span> (<\/span>day<\/span>)<\/span> {<\/span>\r\n\talert<\/span>(<\/span>'Today is Sunday!'<\/span>);<\/span>\r\n};<\/span>\r\n\/\/\u8fd0\u7528\u903b\u8f91\u4e0e\u4ee3\u66ffif<\/span>\r\nday<\/span>&&<\/span>alert<\/span>(<\/span>'Today is Sunday!'<\/span>);<\/span>\r\n<\/pre>\n<\/div>\n
\u6bd4\u5982\u4e0a\u9762\u7684\u4ee3\u7801\uff0c\u9996\u5148\u5f97\u5230\u4eca\u5929\u7684\u65e5\u671f\uff0c\u5982\u679c\u662f\u661f\u671f\u5929\uff0c\u5219\u5f39\u7a97\uff0c\u5426\u5219\u4ec0\u4e48\u4e5f\u4e0d\u505a\u3002\u6211\u4eec\u77e5\u9053\u903b\u8f91\u64cd\u4f5c\u5b58\u5728\u77ed\u8def\u7684\u60c5\u51b5\uff0c\u5bf9\u4e8e\u903b\u8f91\u4e0e\u8868\u8fbe\u5f0f\uff0c\u53ea\u6709\u4e24\u8005\u90fd\u771f\u624d\u7ed3\u679c\u624d\u4e3a\u771f\uff0c\u5982\u679c\u524d\u9762\u7684day\u53d8\u91cf\u88ab\u5224\u65ad\u4e3a\u5047\u4e86\uff0c\u90a3\u4e48\u5bf9\u4e8e\u6574\u4e2a\u4e0e\u8868\u8fbe\u5f0f\u6765\u8bf4\u7ed3\u679c\u5c31\u662f\u5047\uff0c\u6240\u4ee5\u5c31\u4e0d\u4f1a\u7ee7\u7eed\u53bb\u6267\u884c\u540e\u9762\u7684alert\u4e86\uff0c\u5982\u679c\u524d\u9762day\u4e3a\u771f\uff0c\u5219\u8fd8\u8981\u7ee7\u7eed\u6267\u884c\u540e\u9762\u7684\u4ee3\u7801\u6765\u786e\u5b9a\u6574\u4e2a\u8868\u8fbe\u5f0f\u7684\u771f\u5047\u3002\u5229\u7528\u8fd9\u70b9\u8fbe\u5230\u4e86if\u7684\u6548\u679c\u3002<\/p>\n
\u5bf9\u4e8e\u4f20\u7edf\u7684if\u8bed\u53e5\uff0c\u5982\u679c\u6267\u884c\u4f53\u4ee3\u7801\u8d85\u8fc7\u4e861 \u6761\u8bed\u53e5\uff0c\u5219\u9700\u8981\u52a0\u82b1\u62ec\u53f7\uff0c\u800c\u5229\u7528\u9017\u53f7\u8868\u8fbe\u5f0f\uff0c\u53ef\u4ee5\u6267\u884c\u4efb\u610f\u6761\u4ee3\u7801\u800c\u4e0d\u7528\u52a0\u82b1\u62ec\u53f7\u3002<\/p>\n
\n
if<\/span>(<\/span>conditoin<\/span>)<\/span> alert<\/span>(<\/span>1<\/span>),<\/span>alert<\/span>(<\/span>2<\/span>),<\/span>console<\/span>.<\/span>log<\/span>(<\/span>3<\/span>);<\/span>\r\n<\/pre>\n<\/div>\n
\u4e0a\u9762if\u8bed\u53e5\u4e2d\uff0c\u5982\u679c\u6761\u4ef6\u6210\u7acb\u5219\u6267\u884c\u4e09\u4e2a\u64cd\u4f5c\uff0c\u4f46\u6211\u4eec\u4e0d\u9700\u8981\u7528\u82b1\u62ec\u53f7\u5c06\u8fd9\u4e09\u53e5\u4ee3\u7801\u62ec\u8d77\u6765\u3002\u5f53\u7136\uff0c\u8fd9\u662f\u4e0d\u63a8\u8350\u7684\uff0c\u8fd9\u91cc\u662f\u51b7\u77e5\u8bc6\u8bfe\u5802:)<\/p>\n
\u7981\u6b62\u522b\u4eba\u4ee5iframe\u52a0\u8f7d\u4f60\u7684\u9875\u9762<\/h2>\n
\u4e0b\u9762\u7684\u4ee3\u7801\u5df2\u7ecf\u4e0d\u8a00\u81ea\u660e\u4e86\uff0c\u6ca1\u4ec0\u4e48\u597d\u591a\u8bf4\u7684\u3002<\/p>\n
\n
if<\/span> (<\/span>window<\/span>.<\/span>location<\/span> !=<\/span> window<\/span>.<\/span>parent<\/span>.<\/span>location<\/span>)<\/span> window<\/span>.<\/span>parent<\/span>.<\/span>location<\/span> =<\/span> window<\/span>.<\/span>location<\/span>;<\/span>\r\n<\/pre>\n<\/div>\n
console.table<\/h2>\n
Chrome\u4e13\u5c5e\uff0cIE\u7ed5\u9053\u7684console\u65b9\u6cd5\u3002\u53ef\u4ee5\u5c06JavaScript\u5173\u8054\u6570\u7ec4\u4ee5\u8868\u683c\u5f62\u5f0f\u8f93\u51fa\u5230\u6d4f\u89c8\u5668console\uff0c\u6548\u679c\u5f88\u60ca\u8d5e\uff0c\u754c\u9762\u5f88\u7f8e\u89c2\u3002<\/p>\n
\n
\/\/\u91c7\u8d2d\u60c5\u51b5<\/span>\r\nvar<\/span> data<\/span> =<\/span> [{<\/span>'\u54c1\u540d'<\/span>:<\/span> '\u675c\u96f7\u65af'<\/span>,<\/span> '\u6570\u91cf'<\/span>:<\/span> 4<\/span>},<\/span> {<\/span>'\u54c1\u540d'<\/span>:<\/span> '\u5188\u672c'<\/span>,<\/span> '\u6570\u91cf'<\/span>:<\/span> 3<\/span>}];<\/span>\r\nconsole<\/span>.<\/span>table<\/span>(<\/span>data<\/span>);<\/span>\r\n<\/pre>\n<\/div>\n
\"\"<\/p>\n","protected":false},"excerpt":{"rendered":"
\u524d\u7aef\u5df2\u7ecf\u88ab\u73a9\u513f\u574f\u4e86\uff01\u50cfconsole.log()\u53ef\u4ee5\u5411\u63a7\u5236\u53f0\u8f93\u51fa\u56fe\u7247\u7b49\u70ab\u9177\u7684\u73a9\u610f\u5df2\u7ecf\u4e0d\u662f\u4ec0\u4e48\u65b0\u95fb\u4e86\uff0c\u50cf\u7528||\u64cd…<\/p>\n","protected":false},"author":2,"featured_media":587,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[56],"tags":[19,53,23],"_links":{"self":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts\/586"}],"collection":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/comments?post=586"}],"version-history":[{"count":1,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts\/586\/revisions"}],"predecessor-version":[{"id":601,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/posts\/586\/revisions\/601"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/media\/587"}],"wp:attachment":[{"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/media?parent=586"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/categories?post=586"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.daliane.com\/category\/jinjiaoyou\/wp-json\/wp\/v2\/tags?post=586"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}