python利用函数打印杨辉三角前t行
时间: 2024-05-14 14:13:00 浏览: 85
好的,可以通过以下代码实现打印杨辉三角前t行:
```python
def generate_triangle(n):
triangle = []
for i in range(n):
row = [1] * (i + 1)
for j in range(1, i):
row[j] = triangle[i - 1][j - 1] + triangle[i - 1][j]
triangle.append(row)
return triangle
t = int(input("请输入要打印的行数:"))
triangle = generate_triangle(t)
for i in range(t):
print(' ' * (t - i - 1), end='')
for j in range(i + 1):
print(triangle[i][j], end=' ')
print()
```
希望能对你有所帮助!还有什么问题可以继续问我哦~
相关问题
头歌实训python编写函数打印杨辉三角前n行
以下是Python编写的函数,用于打印杨辉三角前n行:
```python
def print_yanghui_triangle(n):
triangle = []
for i in range(n):
row = [1] * (i+1)
for j in range(1, i):
row[j] = triangle[i-1][j-1] + triangle[i-1][j]
triangle.append(row)
for row in triangle:
print(" ".join(str(num) for num in row).center(n*3))
```
使用方法:
```python
print_yanghui_triangle(5)
```
输出结果:
```
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
```
python自定义函数打印杨辉三角形
可以使用递归的方式打印杨辉三角形,代码如下:
```python
def print_triangle(n):
if n == 0:
return
print_triangle(n-1)
row = [1]
for i in range(1, n):
row.append(row[-1] * (n-i) // i)
print(' '.join(map(str, row)).center(2*n-1))
print_triangle(5)
```
输出结果为:
```
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
```
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