python九九乘法表
时间: 2023-08-25 13:10:39 浏览: 76
python编写九九乘法表源码
### 回答1:
可以使用嵌套的for循环来打印九九乘法表,以下是示例代码:
```python
for i in range(1, 10):
for j in range(1, i+1):
print('{} x {} = {}'.format(j, i, i*j), end='\t')
print()
```
输出结果为:
```
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
```
### 回答2:
Python九九乘法表是一种打印9行9列的乘法表格的编程练习题。我们可以使用嵌套循环来实现这个乘法表。
```python
for i in range(1, 10): # 用于控制行数
for j in range(1, i+1): # 用于控制每行的列数,从1到i
print(f'{j} * {i} = {j*i}', end='\t') # 打印乘法表达式,使用制表符('\t')分隔
print() # 打印完一行后换行
```
这段代码中,外层的循环`for i in range(1, 10)`用于控制行数,内层的循环`for j in range(1, i+1)`用于控制每行的列数。`print(f'{j} * {i} = {j*i}', end='\t')`打印出每个乘法表达式,并使用制表符('\t')分隔每个表达式的结果。最后一行的`print()`语句用于换行。
运行以上代码,就可以输出如下九九乘法表:
```
1 * 1 = 1
1 * 2 = 2 2 * 2 = 4
1 * 3 = 3 2 * 3 = 6 3 * 3 = 9
1 * 4 = 4 2 * 4 = 8 3 * 4 = 12 4 * 4 = 16
1 * 5 = 5 2 * 5 = 10 3 * 5 = 15 4 * 5 = 20 5 * 5 = 25
1 * 6 = 6 2 * 6 = 12 3 * 6 = 18 4 * 6 = 24 5 * 6 = 30 6 * 6 = 36
1 * 7 = 7 2 * 7 = 14 3 * 7 = 21 4 * 7 = 28 5 * 7 = 35 6 * 7 = 42 7 * 7 = 49
1 * 8 = 8 2 * 8 = 16 3 * 8 = 24 4 * 8 = 32 5 * 8 = 40 6 * 8 = 48 7 * 8 = 56 8 * 8 = 64
1 * 9 = 9 2 * 9 = 18 3 * 9 = 27 4 * 9 = 36 5 * 9 = 45 6 * 9 = 54 7 * 9 = 63 8 * 9 = 72 9 * 9 = 81
```
通过这个例子,我们能够熟悉掌握了Python语言的基础语法和控制流程语句的使用。
### 回答3:
python九九乘法表可以通过嵌套循环来实现。下面是一个例子:
```python
for i in range(1, 10):
for j in range(1, i+1):
print(j, "*", i, "=", i * j, end="\t")
print()
```
首先,外层的`for`循环用来控制打印乘法表的行数,循环变量`i`的取值范围是1到9。
内层的`for`循环用来控制打印每一行的乘法式子,循环变量`j`的取值范围是1到`i`。对于每个`j`,打印`j * i = j*i`的格式,并使用`\t`制表符分隔每个乘法式子。
最后,每打印完一行乘法式子后,使用`print()`进行换行。
运行上述代码,就可以在控制台上打印出python的九九乘法表,结果如下所示:
```
1 * 1 = 1
1 * 2 = 2 2 * 2 = 4
1 * 3 = 3 2 * 3 = 6 3 * 3 = 9
1 * 4 = 4 2 * 4 = 8 3 * 4 = 12 4 * 4 = 16
1 * 5 = 5 2 * 5 = 10 3 * 5 = 15 4 * 5 = 20 5 * 5 = 25
1 * 6 = 6 2 * 6 = 12 3 * 6 = 18 4 * 6 = 24 5 * 6 = 30 6 * 6 = 36
1 * 7 = 7 2 * 7 = 14 3 * 7 = 21 4 * 7 = 28 5 * 7 = 35 6 * 7 = 42 7 * 7 = 49
1 * 8 = 8 2 * 8 = 16 3 * 8 = 24 4 * 8 = 32 5 * 8 = 40 6 * 8 = 48 7 * 8 = 56 8 * 8 = 64
1 * 9 = 9 2 * 9 = 18 3 * 9 = 27 4 * 9 = 36 5 * 9 = 45 6 * 9 = 54 7 * 9 = 63 8 * 9 = 72 9 * 9 = 81
```
以上就是用python打印九九乘法表的方法。
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