JavaScript 读URL参数增强改进版版

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function getUrlArg(seekArg) { var url= location.href; //先用正则把问号和井号之间的参数部分分离出来，如从 https://www.jb51.net/testjs.htm?p=1&t=1&u=1#test 中分出 p=1&t=1&u=1 if (reMatch = url.match(/\?([^#]+)#?/)) { var querystring = reMatch[1]; //用正则按 & 或 = 拆分到数组里，args 数组中依次是变量名和变量值，如p,1,t,2,u,24 var args = querystring.split(/&|=/); //必须把 arg 声明成对象，如果只写 var arg; 后面赋值时会报错说 arg 这个变量未定义 var arg={}; for(i=0;i<br><INPUT onclick="runEx('runcode88261')" type="button" value="运行代码" class="fn-butt" /> <INPUT onclick="copy2('runcode88261')" type="button" value="复制代码" class="fn-butt" /> <INPUT onclick="doSave(runcode88261)" type="button" value="保存代码" class="fn-butt" />[Ctrl+A 全选 注:引入外部Js需再刷新一下页面才能执行]</div>

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