cars =['audi','bmw','subaru','toyota']for car in cars:if car =='subaru':print("is car == 'subaru'?t predict True")print(car =='subaru')#is car == 'subaru'?t predict True#True
5.5 a demo_3
car ='AUDI'
cars =['audi','bmw','subaru','toyota']for car_ in cars:if car.lower()==car_:print(car.lower()==car_)
age =60if age <2:print('婴儿')elif2<= age and age <4:print("蹒跚学步")elif4<= age and age <13:print("儿童")elif13<= age and age <18:print("青少年")elif18<= age and age <60:print("成年人")elif age >=60:print("老年人")
5.8 序数列表
lists =[i for i inrange(1,10)]if lists:for num in lists:if num ==1:print(str(num)+"st")elif num ==2:print(str(num)+"nd")#前面都不满足,此项才执行elif num ==3:print(str(num)+"rd")#前面都不满足,此项才执行else:print(str(num)+"th")#前面都不满足,此项才执行