效果
js
let app = getApp();Page({data: {img: "/images/1.jpg"},onLoad() {},scan() {wx.scanCode({success: (res) => {console.log("扫码结果");console.log(res);this.setData({img: res.result})},fail: (res) => {console.log(res);}})}})
html
<view class="view"><image class="cover-9" src="{{img}}" bindtap="img"></image><button type="primary" bindtap="scan" id="scan">扫一扫</button></view>
css
page{height: 100%;}.view{width: 100%;height: 100%;}.cover-9{width: 688rpx;height: 80%;margin: 0 30rpx;border:2rpx solid;border-radius:5px; }button{margin: 0 10rpx;width: 100%;}#scan{width: 730rpx;}
其实就是"/images/2.jpg"和"/images/3.jpg"2个字符串生成二维码， 然后在images文件夹下放对应路径的2张图片， 扫一扫二维码重新赋值。 参考地址： https://mp./debug/wxadoc/dev/api/scancode.html
