JavaScript reading URL parameters enhanced and improved version_javascript skills

function getUrlArg(seekArg) { var url= location.href; //First use regular rules to separate the parameter part between the question mark and the pound sign, such as p=1&t= from http://www.jb51.net/testjs.htm?p=1&t=1&u=1#test 1&u=1 if (reMatch = url.match(/?([^#] )#?/)) { var querystring = reMatch[1]; //Use regular rules to split into arrays by & or =. The args array contains variable names and variable values ​​in order, such as p,1,t,2,u,24 var args = querystring.split(/&|=/); //Arg must be declared as an object. If you only write var arg; an error will be reported when assigning value later saying that the variable arg is undefined. var arg={}; for(i=0;i<args.length args arg return><br><input onclick="runEx('runcode74320')" type="button" value="运行代码"> <input onclick="doCopy('runcode74320')" type="button" value="复制代码"> <input onclick="doSave(runcode74320)" type="button" value="保存代码">[Ctrl A select all Note: <a href="http://www.jb51.net/article/23421.htm" title="查看具体详情" target="_blank">If you need to introduce external Js, you need to refresh to execute </a>]</args.length>