cars=['audi','xiali','bwm','benz',]

##根据要求bmw全部为大写，其他的首字母为大写

for car in cars:

    if car=='bmw':

        print(car.upper())

    else:

        print(car.title())

exampleList=['aaa','bbb','ccc']

'aaa' in exampleList

True

'ddd' in exampleList

False

news=['NewYork Time','Router','Wind','xinhuashe']

baoshe='renminribao'

if baoshe not in news:

    print(baoshe.title()+",try try")

返回结构为：Renminribao,try try

age_1=10

age_2=100

if age_1>9 and age_2>90:

    print("age_1: "+str(age_1)) ## int to string  使用str(int),相反 string to int 使用 int(string）

    print("age_2: "+str(age_2))

    
结果是：

age_1: 10
age_2: 100

##测试5，使用 if-elif-else  其中elif=else if

age=12;

if age<12:

    print("erron");

elif age==12:

    print("right")

else:

    print("go")

返回结果为：right

example_begin=['a',b','c','d','e']

example_end=['a','g','e']

for list in example_begin:

    if list in example_end:

        print("包含："+str(list))

    else:

        print("不包含："+str(list))

返回结果为：

包含：a
不包含：b
不包含：c
不包含：d
包含：e