比较时右侧的空格无关紧要
Whitespaces on the right side dont matter when comparing
DEFINE VARIABLE a AS CHARACTER NO-UNDO.
DEFINE VARIABLE b AS CHARACTER NO-UNDO.
a = "123".
b = "123 ".
MESSAGE a = b
VIEW-AS ALERT-BOX.
MESSAGE LENGTH(a) = LENGTH(b)
VIEW-AS ALERT-BOX.
有谁知道，为什么第一个等于 returns 真？
右侧的空格是否被忽略？因为左边的空格会导致等于为假。右边有多少个空格也无关紧要。
谢谢大家
嗯，这就是 ABL 的实施方式。
您可以使用比较功能。
MESSAGE a = b SKIP
COMPARE (a, "EQ", b, "RAW")
VIEW-AS ALERT-BOX.
The equal comparison ignores trailing blanks. Thus, "abc" is equal to "abc ". However, leading and embedded blanks are treated as characters and " abc" is not equal to "abc".
DEFINE VARIABLE a AS CHARACTER NO-UNDO.
DEFINE VARIABLE b AS CHARACTER NO-UNDO.
a = "123".
b = "123 ".
MESSAGE a = b
VIEW-AS ALERT-BOX.
MESSAGE LENGTH(a) = LENGTH(b)
VIEW-AS ALERT-BOX.
有谁知道，为什么第一个等于 returns 真？ 右侧的空格是否被忽略？因为左边的空格会导致等于为假。右边有多少个空格也无关紧要。
谢谢大家
嗯，这就是 ABL 的实施方式。
您可以使用比较功能。
MESSAGE a = b SKIP
COMPARE (a, "EQ", b, "RAW")
VIEW-AS ALERT-BOX.
The equal comparison ignores trailing blanks. Thus, "abc" is equal to "abc ". However, leading and embedded blanks are treated as characters and " abc" is not equal to "abc".