CODESYS STRING字符串判断是否相等

FUNCTION STRING_isAlike : BOOL
VAR_INPUT
	pstr1	: POINTER TO BYTE;
	pstr2	: POINTER TO BYTE;
END_VAR
VAR
END_VAR


IF (pstr1 = pstr2^) THEN

STRING_isAlike := TRUE;
RETURN;
END_IF
STRING_isAlike := FALSE;