小程序多图删除

　　　　　　　　　　　　　　<view class="weui-cell">
                            <view class="weui-cell__bd">
                                <view class="weui-uploader">
                                    <view class="weui-uploader__hd">
                                        <view class="weui-uploader__title">当前设备照片</view>
                                        <view class="weui-uploader__info">{{current.length}}/3</view>
                                    </view>
                                    <view class="weui-uploader__bd">
                                        <view class="weui-uploader__files" id="uploaderFiles">
                                            <block wx:for="{{current}}" wx:key="*this">
                                                <view class="weui-uploader__file" bindlongpress="currentDelImg" data-index="{{index}}">
                                                    <image class="weui-uploader__img" src="{{item}}" id="{{item}}" bindtap="currentPreviewImage" mode="aspectFill" />
                                                </view>
                                            </block>
                                        </view>
                                        <view class="weui-uploader__input-box" wx:if="{{current.length < 3}}">
                                            <view class="weui-uploader__input" bindtap="currentChooseImage"></view>
                                        </view>
                                    </view>
                                </view>
                            </view>
                        </view>

/* 删除图片 */
    currentDelImg: function (e) {
        var that = this;
        var current = that.data.current;
        var index = e.currentTarget.dataset.index;//获取当前长按图片下标
        wx.showModal({
            title: '提示',
            content: '确定要删除此图片吗？',
            success: function (res) {
                if (res.confirm) {
                    console.log('点击确定了');
                    current.splice(index, 1);
                } else if (res.cancel) {
                    console.log('点击取消了');
                    return false;
                }
                that.setData({
                    current
                });
            }
        })
    }