C# C# |对象。GetTypeCode()方法示例

C# |对象。GetTypeCode()方法示例

原文:https://www . geesforgeks . org/c-sharp-object-gettypecode-method-with-examples/

此方法用于返回当前实例的类型。这里，类型表示类型声明，即类类型、接口类型、数组类型、值类型、枚举类型、类型参数、泛型类型定义和开放或封闭构造的泛型类型。T3 系统。对象 类是中存在的所有类型的基类。NET 框架类型系统。基本上，这个方法返回代表所有的类型对象。NET 框架类型。

The。NET Framework 识别出以下五类类型:

Class , derived from system. Object .
Value type comes from system. ValueType 。
Interface comes from system. Object starts from . NET Framework 2.0 。
Enumerate , which comes from system. Enumerate .
委托，来源于系统组播代表.

语法:

public Type GetType ();

返回值:此方法返回当前实例的运行时类型。

以下程序说明了对象的使用。GetType() 方法:

例 1:

// C# program to demonstrate
// Object.GetType() Method
using System;

// Base class
public class G {
}

// Derived class
public class X : G {
}

// Driver Class
class GFG {

    // Main method
    public static void Main()
    {
        // Creating and initializing objects
        X obj = new X();
        G obj1 = new G();
        Object obj2 = obj;

        // Find the type of objects
        // using GetType() method
        Console.WriteLine("The X class object type is: " 
                                       + obj.GetType());

        Console.WriteLine("The G class object type is: " 
                                      + obj1.GetType());

        Console.WriteLine("The obj2 object type is: " 
                                   + obj2.GetType());
    }
}

输出:

The X class object type is: X
The G class object type is: G
The obj2 object type is: X

例 2:

// C# program to demonstrate
// Object.GetType() Method
using System;

public class Author {

    public string A_Name;
    public string P_Name;
    public int n;

    public Author(string A_Name, 
           string P_Name, int n)
    {
        this.A_Name = A_Name;
        this.P_Name = P_Name;
        this.n = n;
    }

    public void Show()
    {
        Console.WriteLine("Author Name : " + A_Name);
        Console.WriteLine("Article Name : " + P_Name);
        Console.WriteLine("Article No : " + n);
    }

    public void type()
    {
        Console.WriteLine("Type of Author Name : " 
                              + A_Name.GetType());

        Console.WriteLine("Type of Article Name : " 
                               + P_Name.GetType());

        Console.WriteLine("Type of Article No : " 
                                  + n.GetType());
    }
}

// Driver Class
class GFG {

    // Main method
    public static void Main()
    {
        // Creating and initializing
        // the object of Author class
        Author obj = new Author("Kirti", 
                "GetType() method", 3);

        Console.WriteLine("Author details:");
        obj.Show();

        // Display the type
        obj.type();
        Console.WriteLine("Type of Author class object: " 
                                         + obj.GetType());
    }
}

输出:

Author details:
Author Name : Kirti
Article Name : GetType() method
Article No : 3
Type of Author Name : System.String
Type of Article Name : System.String
Type of Article No : System.Int32
Type of Author class object: Author

参考:https://docs . Microsoft . com/en-us/dotnet/API/system . object . gettype？视图=netframework-4.7.2