// 允许从相机和相册扫码
uni.scanCode({
    success: function (res) {
        console.log('条码类型：' + res.scanType);
        console.log('条码内容：' + res.result);
    }
});

// 只允许通过相机扫码
uni.scanCode({
    onlyFromCamera: true,
    success: function (res) {
        console.log('条码类型：' + res.scanType);
        console.log('条码内容：' + res.result);
    }
});

// 调起条码扫描
uni.scanCode({
    scanType: ['barCode'],
    success: function (res) {
        console.log('条码类型：' + res.scanType);
        console.log('条码内容：' + res.result);
    }
});