jQuery实现对象转为url参数的方法

//导出全部查询结果function exportExcel(btnFlag) {  //查询条件验证  searchCheck(btnFlag);  var str = parseParam(conditions);  var url = "/wamei/articleStatisticsController/export/excel.htm?"+str;  window.location.href=url;}//将对象转成url 参数var parseParam=function(param, key){  var paramStr="";  if(param instanceof String||param instanceof Number||param instanceof Boolean){    paramStr+="&"+key+"="+encodeURIComponent(param);  }else{    $.each(param,function(i){      var k=key==null?i:key+(param instanceof Array?"["+i+"]":"."+i);      paramStr+='&'+parseParam(this, k);    });  }  return paramStr.substr(1);};