HTML

 我是把canvas嵌套在view里并被view设置id

<view >
  <canvas  style="width: 350px; height: 530px;" canvas-></canvas>
</view>

 

CSS

  把它给顶出去

#canvas{
  position: fixed;
  top: -9999999999999rpx;
}

  

  

uniapp微信小程序canvas隐藏

  

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