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

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

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