C# |获取 OrderedDictionary

中包含的键/值对的数量

原文:https://www . geeksforgeeks . org/c-sharp-get-number-of-key-values-pairs-contained-in-ordered dictionary/

OrderedDictionary。Count 属性用于获取 OrderedDictionary 集合中包含的键/值对的数量。

语法:

public int Count { get; }

返回值:ordered dictionary 集合中包含的键/值对的数量。

下面给出了一些例子，以便更好地理解实现:

例 1:

// C# code to get the number of
// key/values pairs contained
// in the OrderedDictionary
using System;
using System.Collections;
using System.Collections.Specialized;

class GFG {

    // Driver method
    public static void Main()
    {

        // Creating a orderedDictionary named myDict
        OrderedDictionary myDict = new OrderedDictionary();

        // Adding key and value in myDict
        myDict.Add("key1", "value1");
        myDict.Add("key2", "value2");
        myDict.Add("key3", "value3");
        myDict.Add("key4", "value4");
        myDict.Add("key5", "value5");

        // To Get the number of key/values
        // pairs contained in the OrderedDictionary
        Console.WriteLine("Number of key/value pairs are : " 
                                            + myDict.Count);
    }
}

输出:

Number of key/value pairs are : 5

例 2:

// C# code to get the number of
// key/values pairs contained
// in the OrderedDictionary
using System;
using System.Collections;
using System.Collections.Specialized;

class GFG {

    // Driver method
    public static void Main()
    {

        // Creating a orderedDictionary named myDict
        OrderedDictionary myDict = new OrderedDictionary();

        // Adding key and value in myDict
        myDict.Add("A", "Apple");
        myDict.Add("B", "Banana");
        myDict.Add("C", "Cat");
        myDict.Add("D", "Dog");

        // To Get the number of key/values
        // pairs contained in the OrderedDictionary
        Console.WriteLine("Number of key/value pairs are : " 
                                            + myDict.Count);
    }
}

输出:

Number of key/value pairs are : 4

参考:

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