微信小程序预览图片

 <view class="right">
 <a href="javascript:void(0)" data-src="{{data.images}}" bindtap="preview">
 查看照片
 </a>
 </view>

 //图片预览
preview: function (e) {
    let img = e.currentTarget.dataset.src;
    let completeImg = 'http://img.oneconn.net/' + img;
    console.log('completeImg',completeImg);
    let imgList = [];
    imgList.push(completeImg);
    wx.previewImage({
    current: completeImg, // 当前显示图片的http链接
    urls: imgList, // 需要预览的图片http链接列表
    success: function(data) {
        console.log('预览成功');
    },
    fail: function(err) {
        console.log(err.errMsg);
    }
    })
},