这意味着，如果一个变量被声明为接口类型，其值可参考，即实例化任何实现接口的类的任何对象。

This means that if a variable is declared to be the type of an interface, its value can reference any object that is instantiated from any class that implements the interface.

youdao

要序列化的每个对象本身可包含类的实例，此重载可使用其他类重写这些实例。

Each object to be serialized can itself contain instances of classes, which this overload overrides with other classes.

youdao

要序列化的每个对象本身可包含类的实例，该重载可使用其他类重写这些实例。

Each object to be serialized can itself contain instances of classes, which this overload can override with other classes.

youdao

要序列化的每个对象本身可包含类的实例，该重载可使用其他类重写这些实例。

Each object to be serialized can itself contain instances of classes, which this overload can override with other classes.

youdao