假设python中的每个事物都是一个对象，您可以使用底层的str类方法来获得附加功能或直接使用字符串的序列功能。

Given that everything in Python is an object, you can use the underlying STR class methods to gain additional power or use the string's sequence functionality directly.

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可以使用字符串(实例)方法来操作任何属性值，还可以调用许多系统类的静态方法。

You can use string (instance) methods to operate on any property value, and you can call the static methods of many system classes.

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