mini-prog/miniprogram/pages/experience-webview/experience-webview.wxml

<view wx:if="{{!webViewReady}}" class="experience-webview__loading">
  <view class="experience-webview__loading-title">内容页加载中</view>
  <view wx:if="{{loadErrorText}}" class="experience-webview__loading-error">{{loadErrorText}}</view>
</view>

<web-view
  wx:if="{{webViewReady && webViewSrc}}"
  src="{{webViewSrc}}"
  bindmessage="handleWebViewMessage"
  binderror="handleWebViewError"
></web-view>