中。请编写函数item实现此功能。
Prog1.bas
DECLARE FUNCTION item(a,k)
a = 8: n = 4
FOR j = 1 TO n
sum = sum + item(a,j)
NEXT j
PRINT "Sum=";sum
OPEN "QB42.DAT" FOR OUTPUT AS #1
PRINT #1, sum
CLOSE #1
END
FUNCTION item(a,k)
END FUNCTION
参考程序答案
DECLARE FUNCTION item (a, k)
a = 8: n = 4
FOR j = 1 TO n
sum = sum + item(a, j)
NEXT j
PRINT "Sum="; sum
OPEN "QB42.DAT" FOR OUTPUT AS #1
PRINT #1, sum
CLOSE #1
END
FUNCTION item (a, k)
mm = a
FOR i = 2 TO k
mm = mm * 10 + a
NEXT
item = mm
END FUNCTION
第5题
编制程序PROG1.BAS其功能是:打印下列图形。