编辑代码

for y in 1...10
	for x in 1...(y+1)
		printf("%d * %d = %-2d ", x, y, x*y)
	end
	printf("\n")
end

i = 1
while i <= 9
	j = 1
	while j <= i
    	mul = j * i
    	printf("%d x %d = %-2d ", j, i, mul)
        j = j + 1
	end
    i = i + 1
    printf("\n")
end