function getQueryVariable(variable)
        {
          let query = window.location.search.substring(1);
          let vars = query.split("&");
          for (let i=0;i<vars.length;i++) {
            let pair = vars[i].split("=");
            if(pair[0] == variable){return pair[1];}
          }
          return(false);
        }
        alert(getQueryVariable('你需要获取的参数名'))