C＃中的Double.GetHashCode()方法

Double.GetHashCode()方法用于返回此实例的哈希码。

Syntax: public override int GetHashCode ();

Return Value: This method returns a 32-bit signed integer hash code.

下面的程序说明了Double.GetHashCode()方法的用法：

范例1：

// C# program to demonstrate the
// Double.GetHashCode() Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
  
        // Declaring and initializing value1
        double value1 = 10d;
  
        // getting the HashCode
        // using GetHashCode() method
        int value = value1.GetHashCode();
  
        // Display the HashCode
        Console.WriteLine("HashCode is {0}", value);
    }
}

输出：

HashCode is 1076101120

范例2：

// C# program to demonstrate the
// Double.Equals(Double)
// Method
using System;
using System.Globalization;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // calling get() method
        get(5d);
        get(5.5d);
        get(10d);
        get(7.5d);
    }
  
    // defining get() method
    public static void get(double value1)
    {
  
        // getting the HashCode
        // using GetHashCode() method
        int value = value1.GetHashCode();
  
        // Display the HashCode
        Console.WriteLine("HashCode is {0}", value);
    }
}

输出：

HashCode is 1075052544
HashCode is 1075183616
HashCode is 1076101120
HashCode is 1075707904

参考：

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