p ython 打印杨辉三角
时间: 2023-07-27 17:07:06 浏览: 23
下面是 Python 代码实现打印杨辉三角:
```python
def print_pascal_triangle(n):
pascal_triangle = []
for i in range(n):
row = [1]
for j in range(1, i):
row.append(pascal_triangle[i-1][j-1] + pascal_triangle[i-1][j])
if i != 0:
row.append(1)
pascal_triangle.append(row)
for row in pascal_triangle:
print(" ".join(str(num) for num in row).center(n*3))
print_pascal_triangle(5)
```
输出结果:
```
1
1 1
1 2 1
1 3 3 1
1 4 6 4 1
```
相关问题
p ython 杨辉三角
以下是 Python 实现的杨辉三角代码,可以输出指定行数的杨辉三角:
```python
def generate_pascal_triangle(num_rows):
triangle = []
for i in range(num_rows):
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
n = int(input("请输入行数:"))
pascal_triangle = generate_pascal_triangle(n)
for row in pascal_triangle:
print(row)
```
你可以输入一个正整数作为行数,运行程序后就可以输出对应行数的杨辉三角。
c 语言输出杨辉三角形
好的,以下是一个输出杨辉三角形的 C 语言程序:
```c
#include <stdio.h>
int main() {
int rows, coef = 1;
printf("Enter the number of rows: ");
scanf("%d", &rows);
for (int i = 0; i < rows; i++) {
for (int space = 1; space <= rows - i; space++) {
printf(" ");
}
for (int j = 0; j <= i; j++) {
if (j == 0 || i == 0) {
coef = 1;
} else {
coef = coef * (i - j + 1) / j;
}
printf("%4d", coef);
}
printf("\n");
}
return 0;
}
```
运行该程序,输入所需的行数即可输出对应行数的杨辉三角形。