如何使用字符串值傳遞類型爲<T>參數的類型？

Question

我在School中試圖創建一個對象列表Student。 Student而不是School也可以有Teacher作爲列表。我想在啓動類時使用類名作爲參數，而不是實際的類類型作爲參數。

public class Program 
{ 
    static void Main(string[] args) 
    { 
     //School object with list of student 
     var schoolWithStudent = SchoolWithOject("Student"); 
     //School object with list of teacher 
     var schoolWithTeacher = SchoolWithOject("Teacher"); 
    } 

    public static object SchoolWithOject(string objType) 
    { 
     var objType = Type.GetType("objType"); 
     var school = new School<objType>(); 
     return school; 
    } 
} 

public class School<T> 
{ 
    public int Id; 
    public string Name; 
    private List<T> _components; 

    public School() 
    { 
     _components = new List<T>(); 
    } 
} 

public class Student 
{ 
    public int Id; 
    public string Name; 
} 

public class Teacher 
{ 
    int Id; 
    string Name; 
} 

Answer 1

如果我正確理解你的問題，並且你不是被迫使用泛型，我會推薦以下解決方案。

由於學校包含學生和老師，您可以實現兩種類型的界面。

interface IPerson 
{ 
    public int Id; 
    public string Name; 
} 

class Student : IPerson 
{ 
    // student specific stuff 
} 

class Teacher : IPerson 
{ 
    // teacher specific stuff 
} 

所以，你的學校是這樣的：

public class School 
{ 
    public int Id; 
    public string Name; 
    private List<Person> _persons; 

    public School() 
    { 
     _persons = new List<Person>(); 
    } 
}