#define、#undef、#ifdef、#ifndef、#if、#elif、#else、#endif、defined解释 2019-01-20 12:41 −#define、#undef、#ifdef、#ifndef、#if、#elif、#else、#endif、defined。 #define 定义一个预处理宏#undef &nb... 丛林离线 0 750 <123>
a Delphi conditional symbol with the given name. The symbol is recognized for the remainder of the compilation of the current module in which the symbol is declared, or until it appears in an {$UNDEF name} directive. The {$DEFINE name} directive has no effect if name is already defined....
$IFDEF 等同于 $IF DEFINED(...) :它们的结束分别是: $ENDIF、$IFEND; 例子中的 VER200 是 Delphi 2009 的标识. begin {$IFDEF VER200} ShowMessage... 麦麦提敏 0 233 Delphi 的编译指令 2011-04-27 11:35 − Delphi 的编译指令(2): 条件语句的更多用法。 摘自:http://tech.ddvip.com/...
try {$IF DEFINED(CLR)} Instance := InstanceClass.Create(Self); Reference := Instance; {$ELSE} Instance := TComponent(InstanceClass.NewInstance); //这里是直接用的TComponent对象赋值一个派生类空间,面向对象是允许的 TComponent(Reference) := Instance; //这里的Reference是一个实参,这句用于指向创建...
What's the difference between 'fascism' and 'socialism'? More Commonly Misspelled Words Words You Always Have to Look Up Popular in Wordplay See All 8 Words with Fascinating Histories 8 Words for Lesser-Known Musical Instruments Birds Say the Darndest Things ...
Delphi filed for bankruptcy in 2005, and in July 2009, Delphi's six defined benefit pension plans were terminated and trusteed by the Pension Benefit Guaranty Corporation (PBGC). In March 2011, GAO issued a report providing a timeline of key events leading to the plans' termination (GAO-11...
1. $IFDEF 等同于 $IF DEFINED(...) : 它们的结束分别是: $ENDIF、$IFEND; 例子中的 VER200 是 Delphi 2009 的标识. begin {$IFDEF VER200} ShowMessage('这是 Delphi 2009'); {$ENDIF} {$IF DEFINED(VER200)} ShowMessage('这是 Delphi 2009'); ...
1. $IFDEF 等同于 $IF DEFINED(...) : 它们的结束分别是: $ENDIF、$IFEND; 例子中的 VER200 是 Delphi 2009 的标识. begin{$IFDEF VER200}ShowMessage('这是 Delphi 2009');{$ENDIF}{$IF DEFINED(VER200)}ShowMessage('这是 Delphi 2009');{$IFEND}end; ...
Delphi的中文错误提示 ';' not allowed before 'ELSE' ElSE前不允许有“;” '' clause not allowed in OLE automation section 在OLE自动区段不允许“”子句 '' is not a type identifier 不是类型标识符 '' not previously declared as a PROPERTY 前面没有说明PROPERTY ...
In the {$D+,L-} state, only symbols defined in a unit's interface part are listed in the Publics section. For modules compiled in the {$D-} state, there are no entries in the Line Numbers section. 用默认的编译选项{$D+,L+}编译模块(程序或单元),Publics Section列举所有的全局变量、...