uniapp微信小程序实现调用摄像头扫一扫的功能

<script>
methods: {
list() {
				uni.scanCode({
					onlyFromCamera: true,
					success: (res) => {
						console.log('扫描二维码成功,结果:' + res.result);
					},
					error: (res) => {
						console.log('扫描二维码出现错误')
					}
				})
			},
} 
</script>