Delphi 7 和 Delphi 2007/2009/2012(XE3) 的区别

Delphi 7	Delphi 2007/2009/2012(XE3)
版本历史	Delphi 2007 (Delphi 11), the first version byCodeGear, was released on March 16, 2007.   Delphi 2009 (Delphi 12,),the first version byEmbarcadero, added UnicodeString data type, completely reworking the VCL and RTL for fullUnicode support, added generics and anonymous methods for Win32 native development.   Delphi XE3,  was released on September 4, 2012.  Firemonkey + 64Bit
編譯器方面	Unicode generics and anonymous methods a new compiler RTTI system namespace
AFX方面	Firemonkey
IDE方面	代码折叠/展开功能
支持平台	No .NET support for Windows 7 direct 2D 64-bit Windows Mac OS X

 

 

（1）枚举

Delphi 7

ONLY

MessageDlg('hello',mtError,[mbYes],0);

 

Delphi XE3

MessageDlg('hello',TMsgDlgType.mtError,[mbYes],0);

AND

MessageDlg('hello',mtError,[mbYes],0);

 

（2）字符串

相同點：

D7          ShortString,AnsiString,WideString

XE3        ShortString,AnsiString,WideString,UnicodeString

D7和XE3的string[100]都表示ShortString。

 

差異點：

D7         string表示AnsiString

XE3       string表示UnicodeString