werun-wxapp/nova-werun/components/previewImg/index.wxml

<view class="preview_box" wx:if="{{previewHideStatus}}" style="top:{{preview_box_top}}" catchtouchmove='stopPageScroll'>
    <view class="totalimg">{{imgindex}}/{{previewImgList.length}}</view>
    <view class="preview_box1" style="left:{{left}}" bindtap="jingzhi">
        <block wx:for="{{previewImgList}}" wx:key="key">
            <view class="img_box">
                <view bindtouchstart='touchStart' bindtouchmove='touchMove' bindtouchend='touchEnd'>
                    <movable-area scale-area>
                        <movable-view direction="all" animation catchscale="onScale" scale scale-min="1" scale-max="5" scale-value="{{scaleObj.scale}}">
                            <image src="{{item}}" style="width:100%;" mode="widthFix"></image>
                        </movable-view>
                    </movable-area>
                </view>
            </view>
        </block>
    </view>
</view>