python利用函数打印杨辉三角前t行
时间: 2024-05-14 17:13:00 浏览: 19
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
python自定义函数打印杨辉三角形
好的,下面是一个简单的Python函数,用于打印n行的杨辉三角形:
```python
def print_pascal_triangle(n):
# 初始化第一行
row = [1]
# 打印前n行
for i in range(n):
# 打印当前行
print(row)
# 计算下一行
next_row = [1]
for j in range(len(row) - 1):
next_row.append(row[j] + row[j+1])
next_row.append(1)
row = next_row
```
你只需要调用该函数并传入所需的行数即可打印出相应的杨辉三角形,例如:
```python
print_pascal_triangle(5)
```
输出:
```
[1]
[1, 1]
[1, 2, 1]
[1, 3, 3, 1]
[1, 4, 6, 4, 1]
```
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
```