2.def func(*args):

    sum = 0

    for i in  args:

        sum=sum+int(i)

    return sum

a=func(2,3,9,6,8)

print(a)

3.

a=10

b=20

def test5(a,b):

    print(a,b)

c=test5(b,a)

4.

a=10

b=20

def test5(a,b):

    a=3

    b=5

print(a,b)

c=test5(b,a)

print(c)

5.

def func(*args):

    return args

a=func(*[1,2,3],*(22,33))

print(a)

6.

def func(**args):

    return args

a=func(**{'name':'alex'},**{'fg':"dadf"})

print(a)

7.

7.1

a=2

def wra():

    print(a)

wra()

7.2

a=2

def wra():

    a+=1#不能让a重新赋值

print(a)

wra()

7.3

def wra():

    a=1

    def innner():

        print(a)

    innner()

wra()

7.4

def wra():

    a=1

    def innner():

        a+=1

        print(a)

    innner()

wra()

8.

def func(*args):

    for i in range(len(args)-1):

        if args[i]>args[i+1]:

            return args[i+1]

        else:

            return args[i]

a=func(25,63)

print(a)

9.

def func(args):

    a='_'.join(args)

    return a

a=func(['','水电费','apple'])

print(a)

10

def func(*lst):

    dic={}

    dic['max']=max(lst)

    dic['min'] = min(lst)

    return dic

a=func(2,5,9,8,6,3)

print(a)

11.

def func(num):

    sum=1

    for i in range(1,num+1):

        sum=sum*i

    return sum

a=func(3)

print(a)

12.

def func():

    lst = []

    for i in range(1,53):

        a=('草花',i)

        b=('红心',i)

        c=('黑桃',i)

        d=('方块',i)

        lst.append(a)

        lst.append(b)

        lst.append(c)

        lst.append(d)

    return lst

a=func()

print(a)