斐波那契数列

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while True:
    n = int(input('输入打印的个数：'))
    a, b = 1, 1
    for _ in range(1, n+1):
        print(a, end=' ')
        a, b = b, a+b
    print('\n')

    # 1,1,2,3,5,8,13,21,34