小程序--图片点击放大

https://developers.weixin.qq.com/miniprogram/dev/api/media/image/wx.previewImage.html

    // 图片点击放大
  previewImage:function(event){
    var current = event.currentTarget.dataset.src;
    wx.previewImage({
      current: current, // 当前显示图片的http链接
      urls: this.data.goods_info.image// 需要预览的图片http链接列表
    })
  },

 <view  wx:for="{{goods_info.image}}">
        <image bindtap='previewImage' src="{{item}}" data-src='{{item}}' mode="widthFix" style="margin: auto"></image>
    </view>