reader/pages/login/login.wxml

<!--pages/login/login.wxml-->
<view class="dialog" catchtouchmove="touchMove">
    <view class="dialog-contain">
        <view class="text">使用您的微信登录</view>
        <button class="btn" wx:if="{{canIUseGetUserProfile}}" bindtap="getUserProfile">登录</button>
        <button class="btn" wx:else open-type="getUserInfo" bindgetuserinfo="impower">登录</button>
    </view>
</view>