C# 文件操作

 1            //检查文件是否存在
 2             File.Exists(@"c:\my folder\filename");
 3             try { File.Delete(@"c:\jihua.cnblogs.com.txt"); }
 4             catch
 5             {
 6                 MessageBox.Show("删除失败", "jihua.cnblogs.com");
 7             }
 8             try { File.Create(@"c:\jihua.cnblogs.com.txt"); }
 9             catch
10             {
11                 MessageBox.Show("创建失败", "jihua.cnblogs.com");
12             }
13             try { File.Move(@"c:\jihua.cnblogs.com.txt", @"c:\new.jihua.cnblogs.com.txt"); }
14             catch
15             {
16                 MessageBox.Show("移动失败", "jihua.cnblogs.com");
17             }
18             //打开文件
19             if (Msg.AskQuestion("是否打开文件？"))
20             {
21                 System.Diagnostics.Process.Start(filename);
22             }
23             

            bool exists = Directory.Exists(@"c:\my folder");//检查文件夹是否存
            try { Directory.Delete(@"c:\my folder"); }
            catch
            {
            MessageBox.Show("删除失败", "jihua.cnblogs.com");
            }
            try { Directory.CreateDirectory(@"c:\my folder"); }
            catch
            {
            MessageBox.Show("创建失败","jihua.cnblogs.com");
            }
            try { Directory.Move(@"c:\my folder",@"d:\folder"); }
            catch
            {
            MessageBox.Show("移动失败", "jihua.cnblogs.com");
            }