杨辉三角的Python实现

  杨辉三角的Python实现

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1 5 10 10 5 1

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Python生成器实现杨辉三角:

# python
def yanghui_trangle(n):
    if not isinstance(n, int) or n <= 0:
        print('error')
    line = [1]
    for i in range(n):
        yield line 
        line = [1] + [line[i] + line[i+1] for i in range(len(line) - 1)] + [1]  # 生成下一行

for i in yanghui_trangle(10):
    print(i)