C＃中的Int64.GetHashCode方法与示例

Int64.GetHashCode方法用于获取当前Int64实例的HashCode。

Syntax: public override int GetHashCode ();

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

下面的程序说明了上面讨论的方法的使用：

范例1：

// C# program to illustrate the
// Int64.GetHashCode() Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
  
        // Taking Int64 variable
        // i.e. long data type
        long s1 = 458732523;
  
        // Getting the hash code for Int64
        // using GetHashCode() method
        int result = s1.GetHashCode();
  
        // Display the HashCode 
        Console.WriteLine("HashCode for Int64 is: {0}",
                                               result);
    }
}

输出：

HashCode for Int64 is: 458732523

范例2：

// C# program to illustrate the
// Int64.GetHashCode() Method
using System;
  
class GFG {
  
    // Main Method
    public static void Main()
    {
        // using result() Method
        result(Int64.MinValue);
        result(Int64.MaxValue);
    }
  
    // result() method
    public static void result(long val)
    {
  
        // using GetHashCode() method
        int code = val.GetHashCode();
  
        // Display the hashcode
        Console.WriteLine("HashCode for {0} is {1}",
                                        val, code);
    }
}

输出：

HashCode for -9223372036854775808 is -2147483648
HashCode for 9223372036854775807 is -2147483648

参考：

• https://docs.microsoft.com/zh-cn/dotnet/api/system.int64.gethashcode?view=netframework-4.7.2