一、字符串
- 字符串数据类型
- 下标取值
- 切片
- 用于for循环
- 用于len()
- 用于in 和 not in 操作符
>>> name = 'Zophie'
>>> name[0]
'Z'
>>> 'Zo' in name
True
>>> "z" in name
False
>>> 'p' not in name
False
>>> for i in name:
... print('***' + i + '***')
...
***Z***
***o***
***p***
***h***
***i***
***e***