Delphi 系统[1]保留字和关键字
1、定义:
- 关键字,编译器已内置的相关函数,不推荐用作标识符(有特别意义的标识符,有时又叫保留字),否则可能会出现异常错误.
- 保留字,指在高级语言中已经定义过的字,使用者不能再将这些字作为变量名或过程名使用。
2、字:
2.1 Delphi 保留字:
and array as asm begin case class const constructor destructor dispinterface div do downto else end except exports file finalization finally for function goto if implementation in inherited initialization inline interface is label library mod nil not object of or out packed procedure program property raise record repeat resourcestring set shl shr string then threadvar to try type unit until uses var while with xor
2.2 Delphi 关键字:
absolute abstract assembler automated cdecl contains default dispid dynamic export external far forward implements index message name near nodefault on overload override package pascal private protected public published read readonly register reintroduce requires resident safecall stdcall stored virtual write writeonly
3、关键字和保留字说明和使用示例:
- program、library、package、unit
- requires、contains
- interface、 implementation、initialization、finalization
- uses、 type
- var、 threadvar、 const、 resourcestring、absolute
- begin、end
- if、then、else、case
- for、to、downto、do、while、repeat、until
- with
- goto、label
- asm、assembler
- and、or、not、xor、shl、shr、div、mod
- try、finally、except、on、raise
- procedure、function、forward、out
创建时间:2021.08.10 更新时间: