数据类型：POINTER TO [...] name>: POINTER TO [...] Number: POINTER TO INT; i

TO 重要 对于编译器版本 >= V [...] <identifier> : REFERENCE TO [...] A : REFERENCE TO DUT

。 允许的数据类型： BOOL , BYTE , WORD , DWORD

_VAR ... METHOD FB_Init : BOOL [...] InitRetains : BOOL; bInCopyCode : BOOL; nId : INT; lr

_USINT BOOL_TO_WORD BOOL_TO [...] Return_26 := BOOL_TO_WORD(TRUE [...] Return_260 := BOOL_TO_WORD(FALSE

___XWORD WORD_TO_BIT WORD_TO_BOOL [...] ___XWORD __UXINT_TO_BIT __UXINT_TO_BOOL [...] _USINT __UXINT_TO_WORD __UXINT_TO

___XWORD STRING_TO_BIT STRING_TO_BOOL [...] _USINT STRING_TO_WORD STRING_TO [...] ___XWORD WSTRING_TO_BIT WSTRING_TO_BOOL

___XWORD DATE_TO_BIT DATE_TO_BOOL [...] _USINT DATE_TO_WORD DATE_TO [...] _BIT DT_TO_BOOL DT_TO

___XWORD TIME_TO_BIT TIME_TO_BOOL [...] _ULINT TIME_TO_USINT TIME_TO_WORD [...] ___XWORD LTIME_TO_BIT LTIME_TO_BOOL

_BIT TO_BYTE TO_BOOL TO [...] _ULINT TO_USINT TO_WORD [...] IsTrue := TO_BOOL(1