帮我写份Python 99乘法表

以下是Python程序实现99乘法表：

for i in range(1, 10):
    for j in range(1, i + 1):
        print(f"{j} × {i} = {i * j}", end="\t")
    print()

运行结果：

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	

在这个程序中，我们使用两个for循环嵌套来遍历九九乘法表中的每一个元素。外层循环控制行数，内层循环控制列数。在内层循环中，我们使用print()函数输出每一个元素，其中利用了Python 3.6及以上版本的格式化字符串（f-string）来简化字符串拼接的过程。最后一定要记得使用print()函数换行，否则所有的元素会在同一行输出