python99乘法表,双层for循环

Here's the 9x9 multiplication table:

```1 x 1 = 1t1 x 2 = 2t1 x 3 = 3t1 x 4 = 4t1 x 5 = 5t1 x 6 = 6t1 x 7 = 7t1 x 8 = 8t1 x 9 = 9t2 x 1 = 2t2 x 2 = 4t2 x 3 = 6t2 x 4 = 8t2 x 5 = 10t2 x 6 = 12t2 x 7 = 14t2 x 8 = 16t2 x 9 = 18t3 x 1 = 3t3 x 2 = 6t3 x 3 = 9t3 x 4 = 12t3 x 5 = 15t3 x 6 = 18t3 x 7 = 21t3 x 8 = 24t3 x 9 = 27t4 x 1 = 4t4 x 2 = 8t4 x 3 = 12t4 x 4 = 16t4 x 5 = 20t4 x 6 = 24t4 x 7 = 28t4 x 8 = 32t4 x 9 = 36t5 x 1 = 5t5 x 2 = 10t5 x 3 = 15t5 x 4 = 20t5 x 5 = 25t5 x 6 = 30t5 x 7 = 35t5 x 8 = 40t5 x 9 = 45t6 x 1 = 6t6 x 2 = 12t6 x 3 = 18t6 x 4 = 24t6 x 5 = 30t6 x 6 = 36t6 x 7 = 42t6 x 8 = 48t6 x 9 = 54t7 x 1 = 7t7 x 2 = 14t7 x 3 = 21t7 x 4 = 28t7 x 5 = 35t7 x 6 = 42t7 x 7 = 49t7 x 8 = 56t7 x 9 = 63t8 x 1 = 8t8 x 2 = 16t8 x 3 = 24t8 x 4 = 32t8 x 5 = 40t8 x 6 = 48t8 x 7 = 56t8 x 8 = 64t8 x 9 = 72t9 x 1 = 9t9 x 2 = 18t9 x 3 = 27t9 x 4 = 36t9 x 5 = 45t9 x 6 = 54t9 x 7 = 63t9 x 8 = 72t9 x 9 = 81t```

Python 99乘法表的完成与优化

99乘法表，又称乘法口诀表，是小学数学中常见的操练内容。在Python编程中，完成99乘法表不只可以协助初学者了解循环结构，还能加深对字符串操作和格式化的了解。本文将具体介绍Python中完成99乘法表的多种办法，并讨论怎么优化输出作用。

根底完成：双层for循环

在Python中，完成99乘法表最直观的办法是运用双层for循环。外层循环操控行，内层循环操控列。以下是一个简略的完成示例：

```python

for i in range(1, 10):

for j in range(1, i 1):

print(f\