def fib(n):

    a, b = 1, 1

    while a < n:

        print(a, end=' ')

        a, b = b, a + b

fib(100000)

#输出结果

#1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597 2584 4181 6765 10946 17711 28657 46368 75025