<view class='imgs' >

<block wx:for="{{imgs}}" wx:key='index'>

<image src='{{item}}' bindtap='previewImg' data-url="{{imgurl}}{{item}}" data-index='{{index}}'></image>

</block>

</view>

data: {

imgurl: '../../image/',

imgs: [  //小程序只能预览网络图片不能预览本地图片

'../../image/1@2x.png',

'../../image/2@2x.png',

'../../image/3@2x.png',

'../../image/4@2x.png',

'../../image/5@2x.png',

'../../image/6@2x.png',

'../../image/7@2x.png',

'../../image/8@2x.png',

'../../image/9@2x.png',

],

// imgs1:[

//   'https://gs.wyjzpw.com/images/jiudiananli@2x.png',

//   'https://gs.wyjzpw.com/images/xuexiaoanli@2x.png',

//   'https://gs.wyjzpw.com/images/yiyuananli@2x.png',

//   'https://gs.wyjzpw.com/images/qiyeanli@2x.png'

// ]

},

//图片预览

previewImg: function (e) {

var that = this;

console.log(e.currentTarget.dataset.index);

var index = e.currentTarget.dataset.index;

var imgs = this.data.imgs;

var imgurl = that.data.imgurl;

wx.previewImage({

current: imgs[index],     //当前图片地址

urls: imgs,               //所有要预览的图片的地址集合 数组形式

success: function (res) { },

fail: function (res) { },

complete: function (res) { },

})

}

贴代码片段 谢谢。你这样提问题 谁知道什么原因。