时好时坏，有时能get,有时不能，浏览器直连的时候是正常的，

/*获取排行榜 */

   let index = 0;

   let resultArr = [];

   while(index < 5){

    let topListData = await request("/top/list",{idx:index++})

    let topListItem = {name:topListData.playlist.name,tracks:topListData.playlist.tracks.slice(0,3)};

    resultArr.push(topListItem);

    this.setData({

      topList:resultArr

    })

  }

===================request.js============================

import config from "./config";

export default(url,data={},method="GET")=>{

   return new Promise((resolve, reject) => {

        wx.request({

            url:config.host+url,

            data,

            method,

            success:(res)=>{

              console.log("请求成功",res);

              resolve(res.data);

            },

            fail: (err)=> {

              console.log("请求失败",err);

              reject(err);

            }

        })

    })

}