app/invitationCode/index.wxml

<!-- invitationCode/index.wxml -->
<view class="main">
    <view class="main-content" style="background-image: url({{appAssetsUrl3}}invitation_code_bg.png);">
        <view class="user-info">
            <image mode="aspectFill" src="{{memberphoto?memberphoto:(appAssetsUrl+'/images/bz1_nor.png')}}" class="head"></image>
            <view class="right">
                <view class="name">{{name==null?'--':name}}</view>
                <view class="code">邀请码: {{inviteCode}}</view>
            </view>
        </view>
        <view class="qrcode-info">
            <image class="invitationCode" mode="widthFix" src="{{invitationCodeImg}}"></image>
            <view class="text">青雲慧青年服务平台</view>
        </view>
    </view>
    <view class="bottom">
        <button class="btn btn1" bindtap="copyText">复制邀请码</button>
        <button class="btn btn2" bindtap="downloadQR">保存海报</button>
        <button class="btn btn3" bindtap="handleInvite">我的邀请</button>
        <!-- <button class="btn btn3" open-type="share">分享</button> -->
    </view>
    <canvas canvas-id="myCanvas" style="position: fixed; top: -9999px; left: -9999px; width: 750px; height: 1334px;"></canvas>
</view>