export async function calculateFileMd5(filePath) {
    return new Promise((resolve, reject) => {
        const fs = wx.getFileSystemManager();
        fs.getFileInfo({
            filePath: filePath,
            digestAlgorithm: 'md5',
            success(res) {
                resolve(res.digest);
            },
            fail(err) {
                reject(err);
            }
        });
    });
}