python第一套

def fact(n,m=1):

    S=1

    for i in range(1,n+1):

        S*=i

    return s//m

print(fact(m=5,n=10))

a = [1,3]

b = [2,4]

a.extend(b)

print(a)

a = [1, 2, 3]

b = a[:]

print(b)

a=2

b=2

c=2.0

print(a == b, a is b,a is c)

>>>x= 3.14

>>> eval('x + 10')

上述代码的输出结果是