school-market/mini-app/pages/index/index.wxml

<!--index.wxml-->
<view class="container">
  <view class="userinfo">
  <!-- 点了之后就会调用wx.getUserInfo, 随后调用bindGetUserInfo -->
    <button wx:if="{{!hasUserInfo && canIUse}}" open-type="getUserInfo" bindgetuserinfo="bindGetUserInfo"> 点击登录 </button>
    <!-- <button wx:if="{{true}}" bindtap='login'> 点击登录 </button> -->
    <block wx:else>
      <image bindtap="bindViewTap" class="userinfo-avatar" src="{{userInfo.avatarUrl}}" mode="cover"></image>
      <text class="userinfo-nickname">{{userInfo.nickName}}</text>
    </block>
  </view>
  <view class="usermotto">
    <text class="user-motto">{{motto}}</text>
  </view>
</view>