微信小程序 点击预览单个图片

wxml文件

 

js文件

  data: {
    img:'http://img3.imgtn.bdimg.com/it/u=3652463820,1272160945&fm=26&gp=0.jpg'
  },
  //预览单个图片
  previewImage: function (e) {
    let that = this;
    let src = e.currentTarget.dataset.src;
    wx.previewImage({
      current: src, // 当前显示图片的http链接
      urls: [src] // =============重点重点=============
    })

  },