list: [
           \'http://img5.imgtn.bdimg.com/it/u=3300305952,1328708913&fm=26&gp=0.jpg\',
           \'http://img.52z.com/upload/news/image/20180312/20180312060838_67790.jpg\',
        ],

// 如果用了wepy的话
<swiper-item v-for="item in list">
        <image :src="item" class="slide-image" data-list="{{list}}" data-src="{{item}}" style="width:100%; height:276rpx;" @tap="previewImage"/>
</swiper-item>

// 原始小程序 data-list ： 所有预览图片； data-src： 当前预览图片
<swiper-item wx:for="{{list}}" wx:for-item="item">
                <image :src="item" class="slide-image" data-list="{{list}}" data-src="{{item}}" style="width:100%; height:276rpx;" @tap="previewImage"/>
</swiper-item>

methods: {
        previewImage: function (e) {
            var src = e.currentTarget.dataset.src; // 获取data-src
            var imgList = e.currentTarget.dataset.list; // 获取data-list
            wx.previewImage({
                current: src,   // 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(res) {
                    console.log(\'success\');
                },
                fail: function(res) {
                    console.log(\'fail\');
                },
            })
        }
},