复制代码1、打开文件路径: OpenFileDialog a= new OpenFileDialog(); //new一个方法a.Filter = "(*.et;*.xls;*.xlsx)|*.et;*.xls;*.xlsx|all|*.*"; //删选、设定文件显示类型a.ShowDialog(); //显示打开文件的窗口string fileName = a.FileName; //获得选择的文件路径System.Diagnostics.Process.Start(fileName);//打开指定路径下的文件2、打开文件夹路径FolderBrowserDialog a = new FolderBrowserDialog();a.ShowDialog();folderName = a.SelectedPath; //获得选择的文件夹路径3、保存文件SaveFileDialog a = new SaveFileDialog();a.Filter = "(*.et;*.xls;*.xlsx)|*.et;*.xls;*.xlsx|all|*.*"; //删选、设定文件显示类型a.ShowDialog();string path = a.FileName;