Python九九乘法表上三角打印教程

本教程将教你如何使用Python语言打印九九乘法表的上三角部分。

代码实现pythonfor i in range(1, 10): for j in range(i, 10): print(f'{i} x {j} = {i*j:2d}', end=' ') print()

代码解释

for i in range(1, 10):：外层循环控制行数，从1循环到9。2. for j in range(i, 10):：内层循环控制列数，从当前行数i循环到9。3. print(f'{i} x {j} = {i*j:2d}', end=' ')：打印每一行的数据，使用f-string格式化输出，{i*j:2d}表示将乘积结果格式化为2位整数，不足两位用空格填充。4. print(): 内层循环结束后换行。

输出结果

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

希望这篇教程能帮助你理解如何使用Python打印九九乘法表的上三角部分。