小程序练习：循环语句for，while实现99乘法表

打印99乘法表

for 循环语句实现：

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1 2 3 4 5 6

for i in range(1,10):     for j in range(1,10):         print(j,"x",i,"=",i*j,"\t",end="")   #因为print自动换行，end="" 为结尾不换行         if i==j:             print("")  #此处是结尾换行             break

while循环语句实现：

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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:             print("")             j=0             break

输出结果：

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1 2 3 4 5 6 7 8 9

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