cobol学习之八表的建立与使用

使用循环输出9*9乘法表：

000010 IDENTIFICATION			DIVISION.
000011  PROGRAM-ID.			STUDY5-103.
000020 ENVIRONMENT			DIVISION.
000030 DATA				DIVISION.
000031  WORKING-STORAGE			SECTION.
000040  77				DA1 PIC 99.
000050  77 				DA2 PIC 99.
000051  77				DA3 PIC 99.
000052  77				DA4 PIC Z9.
000053  77				DA5 PIC Z9.
000054  77 				DA6 PIC Z9.
000055*  01 CFB.
000056*     02   
000060 PROCEDURE			DIVISION.
000070 P.  PERFORM A
000080     VARYING DA1 FROM 1 BY 1 UNTIL DA1 > 9
000090            AFTER DA2 FROM 1 BY 1 UNTIL DA2 > DA1.
000100     STOP RUN.
000110 A.  COMPUTE DA3 = DA1 * DA2.
000111     MOVE DA3 TO DA4.
000112     MOVE DA1 TO DA5.
000113     MOVE DA2 TO DA6.
000120     IF DA1 = DA2
000121       DISPLAY DA6 "*" DA5 "=" DA4 " "  
000123     ELSE 
000124 	     DISPLAY DA6 "*" DA5 "=" DA4 " " WITH NO ADVANCING
000130     END-IF.   
000140