python打印九九乘法表while语句
时间: 2023-09-04 13:04:15 浏览: 126
### 回答1:
可以使用两个嵌套的 while 循环来打印九九乘法表,具体代码如下:
```
i = 1
while i <= 9:
j = 1
while j <= i:
print(f"{j} x {i} = {i*j}\t", end="")
j += 1
print()
i += 1
```
输出结果如下:
```
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:
九九乘法表是一个常见的数学练习题,要求打印出1到9的九九乘法表。在Python中,可以使用while语句来实现这个功能。以下是使用while语句打印九九乘法表的代码。
```python
i = 1 # 初始化外层循环的计数器
while i <= 9: # 外层循环的条件判断,控制行数
j = 1 # 初始化内层循环的计数器
while j <= i: # 内层循环的条件判断,控制每一行的列数
result = i * j # 计算乘法结果
print(f"{i} * {j} = {result}\t", end="") # 打印乘法表达式和结果,使用制表符分隔每列
j += 1 # 内层循环计数器递增
print() # 打印完一行后换行
i += 1 # 外层循环计数器递增
```
运行以上代码,即可打印出九九乘法表。每一行代表一个乘法式,具体的乘法运算结果按照九九乘法表的样式输出。
### 回答3:
九九乘法表是一个很经典的数学表达式,可以用很多方式实现。下面是使用Python的while语句实现九九乘法表的代码:
```python
i = 1
while i <= 9:
j = 1
while j <= i:
result = i * j
print(f"{j} * {i} = {result}\t", end="")
j += 1
print()
i += 1
```
运行以上代码,会打印出九九乘法表的结果,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
```
以上代码中,使用两个嵌套的while语句来实现九九乘法表的打印。外层的while循环控制表达式的行数,内层的while循环控制每一行中每个表达式的列数,并进行打印。通过每次递增的i和j的值,实现了乘法表的打印效果。
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