C#winform编程

Question

C#，

Answer 1

获取磁盘空间,查查API,可以获取的
但是找文件夹,就有难度了,估计只能遍历搜索了

Answer 2

        BackgroundWorker backgroundWorker1 = new BackgroundWorker();        public Form2()
        {
            InitializeComponent();
            InitializeBackgroundWorker();
        }        private void InitializeBackgroundWorker()
        {
            backgroundWorker1.DoWork +=
                new DoWorkEventHandler(backgroundWorker1_DoWork);
            backgroundWorker1.RunWorkerCompleted +=
                new RunWorkerCompletedEventHandler(
            backgroundWorker1_RunWorkerCompleted);
        }
        private void backgroundWorker1_RunWorkerCompleted(
            object sender, RunWorkerCompletedEventArgs e)
        {
            if (null == e.Error)
            {
                MessageBox.Show("copy successed!");
            }
            else
            {
                MessageBox.Show(e.Error.ToString());
            }
            
        }        private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
        {
            CopyFolder(@"D:\XML", GetDiskFreeSpaceDrive().Name + "New\\");
        }        private void button1_Click(object sender, EventArgs e)
        {
            if (!backgroundWorker1.IsBusy)
            {
                backgroundWorker1.RunWorkerAsync();
            }
        }        public DriveInfo GetDiskFreeSpaceDrive()
        {
            System.IO.DriveInfo[] drives = System.IO.DriveInfo.GetDrives();            DriveInfo result = drives[0];            for (int i = 1; i < drives.Length; i++)
            {
                if (drives[i].TotalFreeSpace > result.TotalFreeSpace)
                {
                    result = drives[i];
                }
            }            return result;
        }        private static void CopyFolder(string from, string to)
        {
            if (!Directory.Exists(to))
                Directory.CreateDirectory(to);            // 子文件夹
            foreach (string sub in Directory.GetDirectories(from))
                CopyFolder(sub + "\\", to + Path.GetFileName(sub) + "\\");            // 文件
            foreach (string file in Directory.GetFiles(from))
                File.Copy(file, to + Path.GetFileName(file), true);
        }仅供参考！要注意一些参数的判断和文件读写的时候文件的判断以及exception