delphi各个版本编译开关值
{$IFDEF VER80} - Delphi 1 {$IFDEF VER90} - Delphi 2 {$IFDEF VER100} - Delphi 3 {$IFDEF VER120} - Delphi 4 {$IFDEF VER130} - Delphi 5 {$IFDEF VER140} - Delphi 6 {$IFDEF VER150} - Delphi 7 {$IFDEF VER160} - Delphi 8 {$IFDEF VER170} - Delphi 2005 {$IFDEF VER180} - Delphi 2006 {$IFDEF VER180} - Delphi 2007 {$IFDEF VER185} - Delphi 2007 {$IFDEF VER200} - Delphi 2009 {$IFDEF VER210} - Delphi 2010 {$IFDEF VER220} - Delphi XE {$IFDEF VER230} - Delphi XE2
{$IF CompilerVersion >= 18.5} //some code only compiled for Delphi 2007 and later {$IFEND} Delphi XE2 - 23 Delphi XE - 22 Delphi 2010 - 21 Delphi 2009 - 20 Delphi 2007 - 18.5 Delphi 2006 - 18 Delphi 2005 - 17 Delphi 8 - 16 Delphi 7 - 15 Delphi 6 - 14