Delphi XE 3 特性

1、Code Folding

procedure TForm1.btn1Click(Sender: TObject);
begin
{$REGION '测试区块'}
  ShowMessage('ok');
{$ENDREGION}
end;

C#

#region Optional text that appears when the code block is folded
.
.
.
#endregion 

Objective-C

#pragma region optional text
.
.
.
#pragma end_region 

2、代码格式化

3、