ABAP 不等于 大于等于 小于等于的几种写法详解编程语言

不等于：【NE】、【<>】、【><】；

大于等于：【GE】、【>=】、【=>】；

小于等于：【LE】、【<=】、【=>】。

小于：【LT】、【<】；

大于：【GT】、【>】；

 DATA: A TYPE I, 
        B TYPE I. 
 
****************TEST1: 
  WRITE:'TEST1:', / . 
  A = '1'. 
  B = '1'. 
 
  IF B >< A. 
    WRITE: B,'><',A. 
  ELSE. 
    WRITE: B,'=',A. 
  ENDIF. 
  WRITE /. 
 
****************TEST2: 
  WRITE:'TEST2:', / . 
  A = '1'. 
  B = '2'. 
 
  IF B >< A. 
    WRITE: B,'><',A. 
  ELSE. 
    WRITE: B,'=',A. 
  ENDIF. 
  WRITE /. 
 
 
****************TEST3: 
  WRITE:'TEST3:', / . 
  A = '1'. 
  B = '2'. 
 
  IF B => A. 
    WRITE: B,'=>',A. 
  ELSE. 
    WRITE: B,'<',A. 
  ENDIF. 
  WRITE /. 
 
 
****************TEST4: 
  WRITE:'TEST4:', / . 
  A = '2'. 
  B = '1'. 
 
  IF B => A. 
    WRITE: B,'=>',A. 
  ELSE. 
    WRITE: B,'<',A. 
  ENDIF. 
  WRITE /. 
 
 
****************TEST5: 
  WRITE:'TEST5:', / . 
  A = '1'. 
  B = '2'. 
 
  IF B =< A. 
    WRITE: B,'=>',A. 
  ELSE. 
    WRITE: B,'>',A. 
  ENDIF. 
  WRITE /. 
 
 
****************TEST6: 
  WRITE:'TEST6:', / . 
  A = '2'. 
  B = '1'. 
 
  IF B =< A. 
    WRITE: B,'=<',A. 
  ELSE. 
    WRITE: B,'>',A. 
  ENDIF. 
  WRITE /.