另一个有用的方法是freeze，该方法可以使字符串变得不可修改。

Another useful method is the freeze method by which a string can be made immutable.

youdao

另一个有用的方法是freeze，该方法可以使字符串变得不可修改。

Another useful method is the freeze method by which a string can be made immutable.

youdao