python—用for循环、while循环打印九九乘法表

用for循环打印九九乘法表：

for i in range (1,10):
    for j in range (1,10):
        print(i,"X",j,"=",i*j,"\t",end="")#end=""表示不换行
        if i == j:
            print("")
            break

打印结果是：

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 	

while循环打印九九乘法表：

i=0
j=0
while i<9:
    i+=1
    while j<9:
        j+=1
        print(j,"x",i,"=",i*j,"\t",end="")
        if i==j:
            j=0
            print("")
            break

打印结果是：

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