运用python输出杨辉三角

以下是用 Python 输出杨辉三角的代码：

def generate(numRows):
    triangle = []
    for i in range(numRows):
        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("请输入要输出的行数："))
result = generate(n)
for i in range(n):
    print(" " * (n - i - 1), end="")
    for j in range(i + 1):
        print(result[i][j], end=" ")
    print()

希望对你有帮助！