C# 对话框之FolderBrowserDialog

1. //folder控件描述Environment.SpecialFolder.Desktop;
   folderBrowserDialog1.Description = "请选择一个包含TXT格式的文件夹：";
   //指定folder根=桌面
   folderBrowserDialog1.RootFolder = Environment.SpecialFolder.Desktop;
   //是否添加新建文件夹的按钮
   folderBrowserDialog1.ShowNewFolderButton = true;
   
   if (folderBrowserDialog1.ShowDialog() == DialogResult.OK)
   {
   
   
   richTextBox1.Text = folderBrowserDialog1.SelectedPath;
   
   }