i=1

while i<10:

   j=1

   while j:

       print(i,"*",j,"=",i*j," ",end="")

       if i==j:

           break

       j+=1

   print("\n")

   i+=1

输出结果：

Python 3.5.4 (v3.5.4:3f56838, Aug  8 2017, 02:17:05) [MSC v.1900 64 bit (AMD64)] on win32

Type "copyright", "credits" or "license()" for more information.

>>>

=============== RESTART: C:/Users/togogo/Desktop/day3/test3.py ===============

1 * 1 = 1  

2 * 1 = 2  2 * 2 = 4  

3 * 1 = 3  3 * 2 = 6  3 * 3 = 9  

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

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

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

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

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

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

>>>