python實現99乘法表

for i in range(1,10):
    for j in range(1,i+1):
        print(i,'*',j,'=',i*j,end='\t')
    print()

最後的print()的作用是換行。第一個print中的end=“\t”這裏是不換行的，導致裏面循環結束不會換行，那麼第二個print是讓第一個循環結束一下就換行一次。

如果出現多個print的話，前面的print沒有換行，就可以添加一個空的print用來換行。

運行結果如下：

1 x 1 = 1	
2 x 1 = 2	2 x 2 = 4	
3 x 1 = 3	3 x 2 = 6	3 x 3 = 9	
4 x 1 = 4	4 x 2 = 8	4 x 3 = 12	4 x 4 = 16	
5 x 1 = 5	5 x 2 = 10	5 x 3 = 15	5 x 4 = 20	5 x 5 = 25	
6 x 1 = 6	6 x 2 = 12	6 x 3 = 18	6 x 4 = 24	6 x 5 = 30	6 x 6 = 36	
7 x 1 = 7	7 x 2 = 14	7 x 3 = 21	7 x 4 = 28	7 x 5 = 35	7 x 6 = 42	7 x 7 = 49	
8 x 1 = 8	8 x 2 = 16	8 x 3 = 24	8 x 4 = 32	8 x 5 = 40	8 x 6 = 48	8 x 7 = 56	8 x 8 = 64	
9 x 1 = 9	9 x 2 = 18	9 x 3 = 27	9 x 4 = 36	9 x 5 = 45	9 x 6 = 54	9 x 7 = 63	9 x 8 = 72	9 x 9 = 81