The first and most important addition was access protection for methods and instance variables on classes -- the public, protected, and private keywords.

第一个也是最重要的新特性是针对类的方法和实例变量的访问保护 —— public、protected 和 private 关键字。

youdao

The actual class that represents an .aspx page in action is an instance of a class that derives from Page; hence, it can call into protected methods.

真正代表一个 .aspx 活动页面的类是从 Page 派生的一个类的实例；因此，它能够调入受保护的方法。

youdao