python 第三天

    今天只看了第五章if语句，剩余的时间看看斯科特杨的如何高效学习，总感觉自己的学习效率有点低，还有自己的专注也非常差，希望可以找到好的方法改善一下！这本书我非传上来供大家阅读！

    今天就传两段小代码吧！

#if条件语句的学习和用法cars = ['audi','bmw','subaru','toyota']for car in cars:if car == 'bmw':#这行第一次编译失败，有不识别的字符，应该注意全英文输入print(car.upper ())else:print(car.title())#if-elseage = 12if age < 4:print("Your admission cost is $0.")elif age < 18:print("Your admission cost is $5." )else:print("Your admission cost is $10.")#检查特定值是否包含在列表中用in或者not inbanned_users = ['andrew','carolina','david']user = 'marie'if user not in banned_users:print(user.title() + ",you can post a response if you wish!")本文代码来自《python编程》