微信开发者工具版本：Stable  v1.02.1907300 手机： HUAWEI-CLT-AL00 问题：电脑上可以显示拖动和缩放效果，但真机调试无法显示。 代码片段： <view class="scene"> <view class="scene-editor" id="scene-editor"> <canvas style="width: {{canvasWidth}}px; height: {{canvasHeight}}px;" class="scene-editor-main"   canvas-id="scene" catchtouchstart="onTouchStart" catchtouchmove="onTouchMove" catchtouchend="onTouchEnd" /> </view> <swiper circular="{{true}}" display-multiple-items="{{5}}" class="scene-template" previous-margin="10rpx" next-margin="10rpx" > <swiper-item wx:key="cover" wx:for="{{templates}}"> <view class="scene-item {{currentNewScene === index ? 'scene-item--active' : ''}}" bindtap="onTapScene" data-index="{{index}}"> <image class="scene-item-cover" mode="aspectFit" src="{{item.cover}}" /> </view> </swiper-item> </swiper> <button class="scene-download" type="primary" bindtap="downloadPic">保存照片</button> </view>