//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);
},