<view id="container"><block wx:if="{{posterDataUrl}}"><image class="poster-bg _img" src="{{posterDataUrl}}" width="100%" height="auto"></image></block><block wx:else><view class="item-box" id="poster"><image class="poster-bg _img" src="{{$root.m0}}"></image><canvas class="qr" style="{{'left:'+((canWeidth-134)/2+'px')+';'}}" canvas-id="qrCode-canvas" id="qrCode-canvas"></canvas></view></block></view>