C＃|获取当前实例的类型

Object.GetType方法用于查找当前实例的类型。此方法返回用于考虑的Type类的实例。

句法：

public Type GetType ();

返回值：该方法返回当前实例的确切运行时类型。

下面给出了一些示例，以更好地理解实现：

范例1：

// C# program to illustrate the 
// GetType() method
using System;
  
class GFG {
  
    // Main method
    static public void Main()
    {
  
        // string type
        string str1 = "GFG";
        string str2 = "5";
  
        // using GetType() method
        Console.WriteLine("Type of str1: " +str1.GetType());
        Console.WriteLine("Type of str2: " +str2.GetType());
    }
}

输出：

Type of str1: System.String
Type of str2: System.String

范例2：

// C# program to illustrate the 
// GetType() method
using System;
  
class GFG {
      
    // Main method
    static public void Main()
    {
  
        // Variables
        string str1 = "C#";
        string str2 = "DSA";
        int str3 = 43;
  
        // Display the given string and their type
        // using GetType() method
        Console.WriteLine("Str 1 is : {0}", str1);
        Console.WriteLine("Str 2 is : {0}", str2);
        Console.WriteLine("Str 3 is : {0}", str3);
  
        // Check the given str1, str2,
        // and str3 are of same type or not
        // using GetType() method
        Console.WriteLine("Is Str 1 and Str 2 of same type? : {0}", 
            Object.ReferenceEquals(str1.GetType(), str2.GetType()));
              
        Console.WriteLine("Is Str 2 and Str 3 of same type? : {0}",
           Object.ReferenceEquals(str2.GetType(), str3.GetType()));
             
        Console.WriteLine("Is Str 3 and Str 2 of same type? : {0}", 
           Object.ReferenceEquals(str3.GetType(), str2.GetType()));
    }
}

输出：

Str 1 is : C#
Str 2 is : DSA
Str 3 is : 43
Is Str 1 and Str 2 of same type? : True
Is Str 2 and Str 3 of same type? : False
Is Str 3 and Str 2 of same type? : False

参考：

• https://docs.microsoft.com/zh-cn/dotnet/api/system.object.gettype?view=netframework-4.7.2