WXML
<image wx:for="{ {img}}" src="{ {item}}" mode="widthFix" bindtap="PreviewImg" data-index="{ {index}}"></image>
JS
data: {
img:[
'/img/test1.jpg',
'/img/test2.jpg'
]
},
//预览图片
PreviewImg: function (e) {
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let index = e.target.dataset.index;
var img=this.data.img;
wx.previewImage({
current: img[index],
urls: img,
})
},