def fun(n): #斐波那契数列
    a=0
    b=1
    i=1
    while(i<=n):
        c=a+b
        a=b    
        b=c
        i+=1
    return c
for i in range(1,10):
    print(fun(i),end=',')
print(fun(10))

输出结果:1,2,3,5,8,13,21,34,55,89

def fun(n): #斐波那契数列
    a=0
    b=1
    i=1
    while(i<=n):
        c=a+b
        a=b    
        b=c
        i+=1
    return c
for i in range(1,10):
    print(fun(i),end=' ')
print(fun(10))

输出结果:1 2 3 5 8 13 21 34 55 89