在C＃中获取给定索引的哈希码

索引结构在C＃8.0中引入。它表示可用于索引集合或序列的类型，并且可以从头开始或从头开始。您可以在Index结构提供的GetHashCode方法的帮助下找到指定索引的哈希码。此方法返回指定索引的哈希码。

句法：

public override int GetHashCode();

范例1：

// C# program to illustrate the 
// concept of the GetHashCode() method
using System;
  
namespace example {
  
class GFG {
  
    // Main Method
    static void Main(string[] args)
    {
        // Creating new indexes
        // Using Index() constructor
        var in1 = new Index(1, true);
        var in2 = new Index(3, false);
  
        // Getting the hash code
        // of the given index
        // Using GetHashCode() method
        var res1 = in1.GetHashCode();
        var res2 = in2.GetHashCode();
  
        // Displaying the index
        Console.WriteLine("Hash Code of Index: {0} is: {1} ", in1, res1);
        Console.WriteLine("Hash Code of Index: {0} is: {1} ", in2, res2);
    }
}
}

输出：

Hash Code of Index: ^1 is: -2 
Hash Code of Index: 3 is: 3 

范例2：

// C# program to illustrate the concept
// of the GetHashCode() method
using System;
   
namespace example {
   
class GFG {
   
    // Main Method
    static void Main(string[] args)
    {
   
        // Creating and initializing an array
        string[] greetings = new string[] {"Hello", "Hola", "Namaste", 
                                "Bonjour", "Ohayo", "Ahnyounghaseyo"};
   
        // Creating new indexes
        // Using Index() constructor
        var in1 = new Index(2, true);
        var in2 = new Index(3, false);
        var in3 = new Index(2, false);
   
        // Getting the hash code
        // of the given indexes
        // Using GetHashCode() method
        var res1 = greetings[in1].GetHashCode();
        var res2 = greetings[in2].GetHashCode();
        var res3 = greetings[in3].GetHashCode();
   
        // Displaying the index
        Console.WriteLine("Index: {0} Value: {1} HashCode: {2} ",
                                     in1, greetings[in1], res1);
   
        Console.WriteLine("Index: {0} Value: {1} HashCode: {2} ",
                                     in2, greetings[in2], res2);
   
        Console.WriteLine("Index: {0} Value: {1} HashCode: {2} ",
                                     in3, greetings[in3], res3);
    }
}
}

输出：

Index: ^2 Value: Ohayo HashCode: -1302855152 
Index: 3 Value: Bonjour HashCode: 399419679 
Index: 2 Value: Namaste HashCode: 1350085290