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<uploadImages bind:myevent="imagesEvent" wx-if="{{pageType == 'add'}}"></uploadImages>
<uploadImages bind:myevent="imagesEvent" images="{{existenceImage}}" wx-if="{{pageType == 'change'}}" roomId="{{roomId}}"></uploadImages>
//组件绑定事件
imagesEvent:function(e){
var that=this
var roomImages = e.detail.imgUrl;
console.log(that.data.roomImageNum)
var roomImageNum = roomImages.length;
that.setData({
roomImages: roomImages,
roomImageNum: roomImageNum
})
console.log(that.data.roomImageNum)
},