写一段python的99乘法表
时间: 2023-09-15 12:05:41 浏览: 199
使用python制作99乘法表
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### 回答1:
以下是用Python输出99乘法表的代码:
```python
for i in range(1, 10):
for j in range(1, i + 1):
print('{}x{}={}\t'.format(i, j, i*j), end='')
print()
```
输出结果为:
```
1x1=1
2x1=2 2x2=4
3x1=3 3x2=6 3x3=9
4x1=4 4x2=8 4x3=12 4x4=16
5x1=5 5x2=10 5x3=15 5x4=20 5x5=25
6x1=6 6x2=12 6x3=18 6x4=24 6x5=30 6x6=36
7x1=7 7x2=14 7x3=21 7x4=28 7x5=35 7x6=42 7x7=49
8x1=8 8x2=16 8x3=24 8x4=32 8x5=40 8x6=48 8x7=56 8x8=64
9x1=9 9x2=18 9x3=27 9x4=36 9x5=45 9x6=54 9x7=63 9x8=72 9x9=81
```
### 回答2:
可以使用两层循环来实现99乘法表。第一层循环用来遍历被乘数,第二层循环用来遍历乘数,然后将两个数相乘并输出即可。
```python
for i in range(1, 10):
for j in range(1, i+1):
print("{} x {} = {}".format(j, i, i*j), end="\t")
print()
```
这段代码中,外层循环控制被乘数,从1到9。内层循环控制乘数,范围为1到被乘数本身。在每次内层循环结束后,使用`print()`换行,输出被乘数的一行结果。
执行这段代码会输出如下的99乘法表:
```
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
```
每一行中按照乘法的顺序输出,被乘数和乘数之间用空格隔开,并且每个乘法式子之间用制表符`\t`隔开。
### 回答3:
以下为使用Python编写的99乘法表:
```python
for i in range(1, 10): # 控制乘数的循环
for j in range(1, i+1): # 控制被乘数的循环
print(f"{j} × {i} = {i*j}", end="\t") # 输出乘法表达式和结果
print() # 换行
```
这段代码使用了两个嵌套循环,外层循环控制乘数的取值范围,从1到9,内层循环控制被乘数的取值范围,从1到当前乘数。这样可以保证每一行被乘数的个数与行数一致。
在循环中使用了`print()`函数来输出乘法表达式和结果,通过`end="\t"`来控制每个表达式后的间隔,使得表格对齐。
最后的`print()`用于换行,使得乘法表中的每一行在输出时都独占一行。
运行这段代码将会输出如下的99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
```
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