C#遍历指定文件夹中的所有文件 
DirectoryInfo TheFolder=new DirectoryInfo(folderFullName);
//遍历文件夹
foreach(DirectoryInfo NextFolder in TheFolder.GetDirectories())
   this.listBox1.Items.Add(NextFolder.Name);
//遍历文件
foreach(FileInfo NextFile in TheFolder.GetFiles())
   this.listBox2.Items.Add(NextFile.Name);

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