1实例: 下载一首英文的歌词或文章，将所有,.？！等替换为空格，将所有大写转换为小写，统计某几个单词出现的次数，分隔出一个一个的单词。
g=‘‘‘Say something, I‘m giving up on you. I‘ll be the one, if you want me to. Anywhere, I would‘ve followed you. Say something, I‘m giving up on you. And I am feeling so small. It was over my head I know nothing at all. And I will stumble and fall. I‘m still learning to love Just starting to crawl. Say something, I‘m giving up on you. I‘m sorry that I couldn‘t get to you. Anywhere, I would‘ve followed you. Say something, I‘m giving up on you. And I will swallow my pride. You‘re the one that I love And I‘m saying goodbye. Say something, I‘m giving up on you. And I‘m sorry that I couldn‘t get to you. And anywhere, I would have followed you. Oh-oh-oh-oh say something, I‘m giving up on you. Say something, I‘m giving up on you. Say something...‘‘‘ g=g.lower() // 小写 g=g.replace(‘,‘,‘ ‘) // ，改为‘ ‘ g=g.replace(‘.‘,‘ ‘) //.改为‘ ‘ g=g.split(‘ ‘) 分隔 g.count(‘something‘) 统计个数 print(g)
2列表实例：由字符串创建一个作业评分列表，做增删改查询统计遍历操作。例如，查询第一个3分的下标，统计1分的同学有多少个，3分的同学有多少个等。
f=list(‘221211322313212222132‘) f.append(‘2‘) //添加 f.pop(0) //删除 f.insert(3,‘3‘) // 插入 list(range(5)) //遍历 f.index(‘3‘) //第一个3分下标 f.count(‘1‘) //1分同学的个数 f.count(‘3‘) //3分中学的个数
3简要描述列表与元组的异同。
列表是一种有序的序列，正向递增、反向递减序号，可以随时添加和删除其中的元素。没有长度限制、元素类型可以不同。
元组与列表类似，不同之处在于元组的元素不能修改。元组使用小括号，列表使用方括号。
原文：http://www.cnblogs.com/misakihong/p/7574105.html