Python语言 用while循环输出九九乘法口诀表

可以使用两个嵌套的 while 循环来实现九九乘法口诀表的输出。代码如下：

i = 1
while i <= 9:
    j = 1
    while j <= i:
        print(j, "*", i, "=", i * j, end="\t")
        j += 1
    print("\n")
    i += 1

运行结果如下：

1 * 1 = 1	

1 * 2 = 2	2 * 2 = 4	

1 * 3 = 3	2 * 3 = 6	3 * 3 = 9	

1 * 4 = 4	2 * 4 = 8	3 * 4 = 12	4 * 4 = 16	

1 * 5 = 5	2 * 5 = 10	3 * 5 = 15	4 * 5 = 20	5 * 5 = 25	

1 * 6 = 6	2 * 6 = 12	3 * 6 = 18	4 * 6 = 24	5 * 6 = 30	6 * 6 = 36	

1 * 7 = 7	2 * 7 = 14	3 * 7 = 21	4 * 7 = 28	5 * 7 = 35	6 * 7 = 42	7 * 7 = 49	

1 * 8 = 8	2 * 8 = 16	3 * 8 = 24	4 * 8 = 32	5 * 8 = 40	6 * 8 = 48	7 * 8 = 56	8 * 8 = 64	

1 * 9 = 9	2 * 9 = 18	3 * 9 = 27	4 * 9 = 36	5 * 9 = 45	6 * 9 = 54	7 * 9 = 63	8 * 9 = 72	9 * 9 = 81