cobol学习的小作业        IDENTIFICATION DIVISION.   
       PROGRAM-ID. MULLIST2.
       ENVIRONMENT  DIVISION.
         
       DATA DIVISION.
       77 I PIC 99.
       77 J PIC 99.
       77 K PIC 999.
      
       77 M PIC ZZ.
       77 N PIC ZZ.
       77 O PIC ZZ.
       PROCEDURE DIVISION.
       PERFORM   VARYING   I   FROM   1   BY   1   UNTIL   I > 9  
       PERFORM   VARYING   J   FROM   1   BY   1   UNTIL   J > I
       COMPUTE K = I * J
       MOVE I TO M
       MOVE J TO N
       MOVE K TO O     
       DISPLAY N '*' M '=' O ';' WITH NO ADVANCING
       END-PERFORM
       DISPLAY ' '
       END-PERFORM 结果如下：