//获取url参数

getQueryVariable(variable){

var query =decodeURIComponent(window.location.search.substring(1));

var vars = query.split("&");

          for (var i=0;i<vars.length;i++) {

                var pair = vars[i].split("=");

                 if(pair[0] == variable){return pair[1];}

            }

                return(false);

},