我有这样的界面：
public interface IUser{
//some properties here
T ToDerived(User u);
}
我是接口开发的新手,所以这就是我想要完成的.我会有一个基类
public class User
不实现上述接口.然后我将有一个派生类
SalesUser : User,IUser
{
//no properties needed because they exist in the User class
SalesUser ToDerived(User u)
{
//code for converting a base User to a derived SalesUser
}
}
我想在SalesUser类中编写ToDerived(User u)的函数,但是在界面中,我不知道如何定义这个,因为我现在在界面中的ToDerived方法声明没有编译.
我希望这是有道理的.
解决方法
public interface IUser<T> where T : User
{
//some properties here
T ToDerived(User u);
}
SalesUser : User,IUser<SalesUser>
{
//no properties needed because they exist in the User class
SalesUser ToDerived(User u)
{
//code for converting a base User to a derived SalesUser
}
}
不确定这是你想要的,但是我在接口上添加了泛型类型约束,以确保泛型类型是User或继承它.
