1 private void btn_帮助文档_ItemClick(object sender, ItemClickEventArgs e) 2 { 3 try 4 { 5 System.Diagnostics.Process.Start(@"..help软件系统帮助文档.pdf"); 6 } 7 catch(Exception ex) 8 { 9 MessageBox.Show(ex.Message); 10 } 11 }