<camera v-show="!isCanvasShow" mode="normal" device-position="back" flash="off" :style="{height: cameraHeight + 'px'}">

      <cover-view class="controls" style="width: 100%; height: 100%">

        <cover-image class="limit-image-box" :src="limitBoxImageSrc"></cover-image>

      </cover-view>

    </camera>

测试：

发布：