python实现九九乘法口诀

# -*- coding: utf-8 -*-
# 简述：9*9乘法口诀表。
# 要求：逐项单位输出。例如1的一行，2的一行，以此类推
for i in range(1,10):
    for j in range(1,10):
        if i>=j:
            print i,"*",j,"=",i*j,
    print "\r\n"

运行结果：

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 

总结：windows下的换行符为\r\n