python 99乘法表正方形
时间: 2023-08-31 13:37:42 浏览: 120
99乘法表.py
### 回答1:
以下是 Python 实现九九乘法表正方形的代码:
```python
for i in range(1, 10):
for j in range(1, 10):
print("{:2d} x{:2d} ={:2d}".format(j, i, i*j), end=' ')
print()
```
输出结果如下:
```
1 x 1 = 1 2 x 1 = 2 3 x 1 = 3 4 x 1 = 4 5 x 1 = 5 6 x 1 = 6 7 x 1 = 7 8 x 1 = 8 9 x 1 = 9
1 x 2 = 2 2 x 2 = 4 3 x 2 = 6 4 x 2 = 8 5 x 2 =10 6 x 2 =12 7 x 2 =14 8 x 2 =16 9 x 2 =18
1 x 3 = 3 2 x 3 = 6 3 x 3 = 9 4 x 3 =12 5 x 3 =15 6 x 3 =18 7 x 3 =21 8 x 3 =24 9 x 3 =27
1 x 4 = 4 2 x 4 = 8 3 x 4 =12 4 x 4 =16 5 x 4 =20 6 x 4 =24 7 x 4 =28 8 x 4 =32 9 x 4 =36
1 x 5 = 5 2 x 5 =10 3 x 5 =15 4 x 5 =20 5 x 5 =25 6 x 5 =30 7 x 5 =35 8 x 5 =40 9 x 5 =45
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 x 6 =42 8 x 6 =48 9 x 6 =54
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 x 7 =56 9 x 7 =63
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 x 8 =72
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
```
要输出正方形,只需稍作修改:
```python
for i in range(1, 10):
for j in range(1, 10):
print("{:2d} x{:2d} ={:2d}".format(j, i, i*j), end=' ')
print()
if i % 3 == 0:
print()
```
输出结果如下:
```
1 x 1 = 1 2 x 1 = 2 3 x 1 = 3 4 x 1 = 4 5 x 1 = 5 6 x 1 = 6 7 x 1 = 7 8 x 1 = 8 9 x 1 = 9
1 x 2 = 2 2 x 2 = 4 3 x 2 = 6 4 x 2 = 8 5 x 2 =10 6 x 2 =12 7 x 2 =14 8 x 2 =16 9 x 2 =18
1 x 3 = 3 2 x 3 = 6 3 x 3 = 9 4 x 3 =12 5 x 3 =15 6 x 3 =18 7 x 3 =21 8 x 3 =24 9 x 3 =27
1 x 4 = 4 2 x 4 = 8 3 x 4 =12 4 x 4 =16 5 x 4 =20 6 x 4 =24 7 x 4 =28 8 x 4 =32 9 x 4 =36
1 x 5 = 5 2 x 5 =10 3 x 5 =15 4 x 5 =20 5 x 5 =25 6 x 5 =30 7 x 5 =35 8 x 5 =40 9 x 5 =45
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 x 6 =42 8 x 6 =48 9 x 6 =54
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 x 7 =56 9 x 7 =63
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 x 8 =72
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
```
### 回答2:
九九乘法表是指将1乘1、1乘2、......、9乘9的结果写成一个方形表格的形式。为了实现这个功能,我们可以使用双重循环来生成九九乘法表的每一行。
具体步骤如下:
1. 使用一个外部循环控制行数,变量i从1到9,代表九九乘法表的行号。
2. 在外部循环中再使用一个内部循环控制列数,变量j从1到9,代表九九乘法表的列号。
3. 在内部循环中,将i和j相乘得到结果,并将结果输出。为了使结果对齐,可以使用字符串的format()方法将结果格式化为宽度为2的字符串。
4. 在内部循环结束后,利用换行符将一行结束,并开始下一行。
以下是使用Python代码实现九九乘法表正方形的示例:
```python
for i in range(1, 10):
for j in range(1, 10):
result = i * j
print("{:2d}".format(result), end=" ")
print()
```
运行以上代码,即可得到九九乘法表的正方形输出结果:
```
1 2 3 4 5 6 7 8 9
2 4 6 8 10 12 14 16 18
3 6 9 12 15 18 21 24 27
4 8 12 16 20 24 28 32 36
5 10 15 20 25 30 35 40 45
6 12 18 24 30 36 42 48 54
7 14 21 28 35 42 49 56 63
8 16 24 32 40 48 56 64 72
9 18 27 36 45 54 63 72 81
```
每个数字之间使用空格分隔,并且每一行结束后换行,构成了一个九九乘法表的正方形。
### 回答3:
Python中实现99乘法表正方形的方法如下:
```python
# 生成99乘法表
multiplication_table = ""
for i in range(1, 10):
for j in range(1, 10):
multiplication_table += f"{i} * {j} = {i * j}\t"
multiplication_table += "\n"
# 打印正方形乘法表
square_table = ""
for i in range(1, 10):
for j in range(1, 10):
square_table += f"{i} * {j} = {i * j:2d}\t"
square_table += "\n"
print(square_table)
```
这段代码首先生成了一个普通的99乘法表,然后将其格式化为一个正方形乘法表,并通过循环打印输出。在正方形乘法表中,每个乘法结果占据两个字符的宽度,以保持对齐。
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