Python（7）-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：
1 for i in range(1,10): 2 for j in range(1,10): 3 print(j,"x",i,"=",i*j,"\t",end="") #因为print自动换行，end="" 为结尾不换行 4 if i==j: 5 print("") #此处是结尾换行 6 break
while循环语句实现：
1 i=0 2 j=0 3 while i <9: 4 i+=1 5 while j <9: 6 j += 1 7 print(j, "x", i, "=", i * j, "\t", end="") 8 if i==j: 9 print("") 10 j=0 11 break
输出结果：
1 1 x 1 = 1 2 1 x 2 = 2 2 x 2 = 4 3 1 x 3 = 3 2 x 3 = 6 3 x 3 = 9 4 1 x 4 = 4 2 x 4 = 8 3 x 4 = 12 4 x 4 = 16 5 1 x 5 = 5 2 x 5 = 10 3 x 5 = 15 4 x 5 = 20 5 x 5 = 25 6 1 x 6 = 6 2 x 6 = 12 3 x 6 = 18 4 x 6 = 24 5 x 6 = 30 6 x 6 = 36 7 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 8 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 9 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
打印99乘法表
for 循环语句实现：
1 for i in range(1,10): 2 for j in range(1,10): 3 print(j,"x",i,"=",i*j,"\t",end="") #因为print自动换行，end="" 为结尾不换行 4 if i==j: 5 print("") #此处是结尾换行 6 break
while循环语句实现：
1 i=0 2 j=0 3 while i <9: 4 i+=1 5 while j <9: 6 j += 1 7 print(j, "x", i, "=", i * j, "\t", end="") 8 if i==j: 9 print("") 10 j=0 11 break
输出结果：
1 1 x 1 = 1 2 1 x 2 = 2 2 x 2 = 4 3 1 x 3 = 3 2 x 3 = 6 3 x 3 = 9 4 1 x 4 = 4 2 x 4 = 8 3 x 4 = 12 4 x 4 = 16 5 1 x 5 = 5 2 x 5 = 10 3 x 5 = 15 4 x 5 = 20 5 x 5 = 25 6 1 x 6 = 6 2 x 6 = 12 3 x 6 = 18 4 x 6 = 24 5 x 6 = 30 6 x 6 = 36 7 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 8 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 9 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