abap中 is initial 和space的区别
展开全部
举个例子：
DATA: n(4) TYPE n VALUE ‘0000‘.
IF ‘‘ = ‘ ‘ AND ‘‘ = 0 AND ‘ ‘ = 0 AND ‘‘ IS INITIAL AND ‘‘ IS INITIAL AND 0 IS INITIALAND n IS INITIAL.
WRITE: ‘IS INITIAL‘. 以上条件为真
ENDIF.
但‘0000‘数字常量串不能视为初始，下面条件也为真：
IF ‘‘ <> ‘0000‘ AND ‘ ‘ <> ‘0000‘ AND ‘0000‘ IS NOT INITIAL.
DATA: n(4) TYPE n VALUE ‘0000‘.
IF ‘‘ = ‘ ‘ AND ‘‘ = 0 AND ‘ ‘ = 0 AND ‘‘ IS INITIAL AND ‘‘ IS INITIAL AND 0 IS INITIALAND n IS INITIAL.
WRITE: ‘IS INITIAL‘. 以上条件为真
ENDIF.
但‘0000‘数字常量串不能视为初始，下面条件也为真：
IF ‘‘ <> ‘0000‘ AND ‘ ‘ <> ‘0000‘ AND ‘0000‘ IS NOT INITIAL.
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
推荐律师服务：
若未解决您的问题，请您详细描述您的问题，通过百度律临进行免费专业咨询
