Then, we could call the say function, casting our myhouse variable to the "Talk" interface.

然后，我们可以调用say函数，将myhouse变量的数据类型转换成“Talk”接口。

youdao

Then, we could call the say function, casting our myhouse variable to the "Talk" interface.

然后，我们可以调用say函数，将myhouse变量的数据类型转换成“Talk”接口。

youdao