獲取使用者頭像和暱稱：

<!--index.wxml-->
<view class="container">
  <view  bindtap="bindViewTap" class="userinfo">
    <image class="userinfo-avatar" src="{{userInfo.avatarUrl}}" background-size="cover"></image>
    <text class="userinfo-nickname">{{userInfo.nickName}}</text>
  </view>
  <view class="usermotto">
    <text class="user-motto">{{motto}}</text>
  </view>
</view>
 

/**index.wxss**/
.userinfo {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.userinfo-avatar {
  width: 128rpx;
  height: 128rpx;
  margin: 20rpx;
  border-radius: 50%;
}

.userinfo-nickname {
  color: #aaa;
}

.usermotto {
  margin-top: 200px;
}

//index.js
//獲取應用例項
var app = getApp()
Page({
  data: {
    motto: 'Hello World',
    userInfo: {}
  },
  //事件處理函式
  bindViewTap: function() {
    wx.navigateTo({
      url: '../logs/logs'
    })
  },
  onLoad: function () {
    console.log('onLoad')
    var that = this
    //呼叫應用例項的方法獲取全域性資料
    app.getUserInfo(function(userInfo){
      //更新資料
      that.setData({
        userInfo:userInfo
      })
    })
  }
})
 

呼叫登陸介面 app.js

//app.js
App({
  onLaunch: function () {
    //呼叫API從本地快取中獲取資料
    // var logs = wx.getStorageSync('logs') || []
    // logs.unshift(Date.now())
    // wx.setStorageSync('logs', logs)
  },
  getUserInfo:function(cb){
    var that = this;
    if(this.globalData.userInfo){
      typeof cb == "function" && cb(this.globalData.userInfo)
    }else{
      //呼叫登入介面
      wx.login({
        success: function () {
          wx.getUserInfo({
            success: function (res) {
              that.globalData.userInfo = res.userInfo;
              typeof cb == "function" && cb(that.globalData.userInfo)
            }
          })
        }
      });
    }
  },
  globalData:{
    userInfo:null
  }
})