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目前项目有个需求，需要在微信小程序里实现一个自定义相机，然后用户可操作来拍照，最后将拍出来的照片进行人脸识别
<template> <view> <camera :device-position="devicePosition" flash="off" @error=
"error" style="width: 100%; height: 300px;"></camera> <button type="primary"
@click="takePhoto">拍照</button> <button type="primary" @click="
toggleDevicePosition">翻转摄像头</button> <view>预览</view> <image mode="widthFix" :src
="src"></image> </view> </template> <script> export default { data () { return {
src: "", cameraCtx: null, devicePosition: 'backs' //前置或后置摄像头，值为front, back } },
onLoad () { this.cameraCtx = uni.createCameraContext(); }, methods: { takePhoto
() { this.cameraCtx.takePhoto({ quality: 'high', success: (res) => { this.src =
res.tempImagePath } }); }, toggleDevicePosition () { this.devicePosition = this.
devicePosition== 'back' ? 'front' : 'back' }, error (e) { console.log(e.detail);
} } } </script> ``` 最后将拍摄到的图片通过人脸识别接口请求对比一下就行了
