uni-app实现图片上传，添加展示与删除

如图，uni-app实现图片上传，添加展示与删除

<!-- 上传照片 -->
            <view class="item-num">
                <view class="upload-img">
                    <!-- 预览缩略图 -->
                    <view class="q-image-wrap">
                        <!-- 图片缩略图  -->
                        <block v-for="(imgItem, idx) in photoFiles" :key="idx">
                            <view class="item">
                                <image class="q-image" :src="imgItem.url" mode="aspectFill" :data-cur="imgItem.url" @tap="refundPicPreView"></image>
                                </image>
                                <!-- 移除图片的按钮  -->
                                <view class="q-image-remover" :data-idx="idx" @tap="removeImage">
                                    <!-- <text>x</text> -->
                                    <image src="../../static/icons/delect.png" mode=""></image>
                                </view>
                            </view>
                        </block>
                        <!-- 添加图片图标 -->
                        <view class="item" v-if="photoFiles.length < 6" @tap="getUploadImg">
                            <image class="q-image" src="../../static/icons/default-img.png" mode="">
                            </image>
                        </view>
                    </view>
                </view>
            </view>
            <!-- end -->

静态的data数据：
data() {
            return {
                photoFiles: [
                    {url: "../../static/text.jpg",id:1},
                    {url: "../../static/text.jpg",id:2},
                    {url: "../../static/text.jpg",id:3},
                    {url: "../../static/text.jpg",id:4},
                    {url: "../../static/text.jpg",id:5}
                ], //凭证图片列表
            };
        },

/**
             * 上传图片
             */
            getUploadImg: function(e) {
                var idx = e.target.dataset.idx;
                console.log(idx);
                var ths = this;
                wx.chooseImage({
                    count: 1,
                    // 默认9
                    sizeType: ['compressed'],
                    sourceType: ['album', 'camera'],
                    success: function(res) {
                        // 图片的本地临时文件路径列表
                        var tempFilePaths = res.tempFilePaths;
                        uni.showLoading({
                            mask: true
                        });
                        var params = {
                          url: "/p/file/upload",
                          filePath: tempFilePaths[0],
                          name: 'file',
                          callBack: function (res2) {
                            uni.hideLoading()
                            var img = {};
                            img.path = JSON.parse(res2).filePath;
                            img.url = JSON.parse(res2).resourcesUrl + JSON.parse(res2).filePath;
                            var photoFiles = ths.photoFiles;
                            photoFiles.push(img);
                            ths.setData({
                              photoFiles: photoFiles
                            });
                          }
                        };
                        http.upload(params);
                    }
                });
            },
            /**
             * 图片点击预览
             */
            refundPicPreView(e) {
                var current = e.currentTarget.dataset.cur
                var urls = []
                this.photoFiles.forEach(el => {
                    urls.push(el.url)
                })
                uni.previewImage({
                    current: current,
                    urls: urls
                })
            },

            /**
             * 删除图片
             */
            removeImage: function(e){
                var idx = e.currentTarget.dataset.idx;
                var photoFiles = this.photoFiles;
                photoFiles.splice(idx, 1);
                this.setData({
                    photoFiles: photoFiles
                })
            }

.item-num {}

.item-num .upload-img {
    padding: 40rpx 40rpx 40rpx 30rpx;
}

.item-num .upload-img .q-image-wrap {
    display: flex;
    /* height: 500rpx; */
    flex-wrap: wrap;
}

.item-num .upload-img .q-image-wrap .item {
    position: relative;
    height: 200rpx;
     200rpx;
    margin-right: 20rpx;
    margin-bottom: 20rpx;
}

.item-num .upload-img .q-image-wrap .item .q-image {
    height: 200rpx;
     200rpx;
}

.item-num .upload-img .q-image-wrap .item .q-image-remover {
     0;
    height: 0;
    border-top: 66rpx solid #bfde85;
    border-left: 66rpx solid transparent;
    position: absolute;
    top: 0;
    right: 0;
}

/* .item-num .upload-img .q-image-wrap .item .q-image-remover text{
     30rpx;
    display: block;
    height: 30rpx;
    color: #FFFFFF;
    text-align: center;
    line-height: 30rpx;
    font-size: 30rpx;
    border-radius: 20rpx;
    background-color: #bfde85;
    position: absolute;
    top: -60rpx;
    right: 0;
} */

.item-num .upload-img .q-image-wrap .item .q-image-remover image {
     24rpx;
    height: 24rpx;
    position: absolute;
    top: -60rpx;
    right: 4rpx;
}

上传的没搞明白，有待改进