#ELSEIF

• 来源: https://www.freebasic.net/wiki/wikka.php?wakka=KeyPgPpelseif
• 最后更新: 2023-10-02

---

预处理器条件指令

语法

#if (expression1)

' Conditionally included statements if expression1 is True

#elseif (expression2)

' Conditionally included statements if expression2 is True

#else

' Conditionally included statements if both
' expression1 and expression2 are False

#endif

说明

#elseif 可添加到 #if 块中，以提供额外的条件。

示例

start GeSHi

#DEFINE WORDSIZE 16
#IF (WORDSIZE = 16)
  ' Do some some 16 bit stuff
#ELSEIF (WORDSIZE = 32)
  ' Do some some 32 bit stuff
#ELSE
  #ERROR WORDSIZE must be set To 16 Or 32
#ENDIF

end GeSHi

与 QB 的区别

• FreeBASIC 新增

另请参阅

• #define
• #macro
• #if
• #else
• #elseifdef
• #elseifndef
• #endif
• #ifdef
• #ifndef
• #undef
• defined

返回 目录