bug优化，答题卡初始化

zhongshujie

2024-12-19 8a27f5724e10e82cc5a30bf7051397da2e697e63

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<!--pages/home/digitalRead/index.wxml-->
<view class="page-body">
  <web-view bind:message="drawBack" binderror="onError" bindload="onLoadWeb" src="{{src}}"></web-view>
</view>