前阶段遇见复制文件夹问题，一时想到要用递归，总结如下：
复制文件夹
1 static void Main(string[] args) 2 { 3 CopyDirectroy(@"c:\Dell", @"d:\Dell"); 4 } 5 static void CopyDirectroy(string sourePath, string targetPath) 6 { 7 DirectoryInfo sourceDir = new DirectoryInfo(sourePath);// 8 DirectoryInfo targetDir = new DirectoryInfo(targetPath);// 9 if (!sourceDir.Exists) 10 { 11 return; 12 } 13 if (!targetDir.Exists) 14 { 15 Directory.CreateDirectory(targetPath);// 16 } 17 FileInfo[] files = sourceDir.GetFiles();// 18 int filesLength = files.Length;// 19 for (int i = 0; i < filesLength; i++)// 20 { 21 File.Copy(files[i].FullName, targetPath + "\\" + files[i].Name, true);// 22 } 23 DirectoryInfo[] dirs = sourceDir.GetDirectories();// 24 for (int i = 0; i < dirs.Length; i++) 25 { 26 CopyDirectroy(dirs[i].FullName, targetPath + "\\" + dirs[i].Name);// 27 } 28 }