1         /// <summary>
 2         /// FileInfo相关操作
 3         /// </summary>
 4         public static void OperationAboutFileInfo()
 5         {
 6             #region 操作文件FileInfo
 7 
 8             ////右键MyFirstTxt ==>属性==>始终复制 
 9             FileInfo fileInfo = new FileInfo("MyFirstTxt.txt");
10 
11             Console.WriteLine(fileInfo.Exists);
12 
13             //获取文件后缀名
14             Console.WriteLine(fileInfo.Extension);
15 
16             //打印文件名
17             Console.WriteLine(fileInfo.Name);
18 
19             //获取文件目录
20             Console.WriteLine(fileInfo.Directory);
21 
22             Console.WriteLine(fileInfo.Length);
23 
24             Console.WriteLine(fileInfo.IsReadOnly);
25 
26             //复制文件
27             fileInfo.CopyTo("tt.txt");
28 
29             fileInfo.Delete();
30 
31 
32         
33             #endregion 操作文件FileInfo
34         }

 1         /// <summary>
 2         /// 判断、创建文件、重命名
 3         /// </summary>
 4         /// <param name="fileName"></param>
 5         public static void CreateFileAndRename(string fileName)
 6         {
 7             FileInfo fileInfo = new FileInfo(fileName);
 8             if (!fileInfo.Exists)
 9             {
10                 fileInfo.Create();
11             }
12 
13             //移动到同名目录中 相当于重命名
14             fileInfo.MoveTo("HelloWorld.txt");
15         }