获取链接中指定参数的值

getUrlArgs(){
      let qs = location.search.length > 0 ? location.search.substring(1) : "",
          args = {},
          items = qs.length ? qs.split("&") : [],
          item = null,
          name = null,
          value = null,
          i = 0,
          len = items.length;
          for(i;i<len;i++){
              item = items[i].split("=");
              name = decodeURIComponent(item[0]);//解码
              value = decodeURIComponent(item[1]);
              args[name] = value;
            }
            return args;
        }