杨辉三角的Python实现

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Python生成器实现杨辉三角:

# pythondef 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)