python-菜鸟娱乐

def common_divisor(m, n):
    while m:
        if m < n:
            t = m
            m = n
            n = t
            print('m=, n= ,t=', m, n, t)
        m %= n
        print('m1=, n1=', m, n)
    return n

print(common_divisor(3, 15))