C# Dictionary.Values用法及代码示例

此属性用于获取包含Dictionary <TKey，TValue>中的值的集合。

用法:

public System.Collections.Generic.Dictionary<TKey, TValue>.KeyCollection Values{ get; }

返回值：此属性返回一个包含Dictionary中的Values的集合。

以下示例程序旨在说明Dictionary <TKey，TValue> .Values属性的用法：

范例1：

// C# code to get the Values 
// in the Dictionary 
using System; 
using System.Collections.Generic; 
  
class GFG { 
  
    // Driver code 
    public static void Main() 
    { 
  
        // Create a new dictionary 
        // of strings, with string keys. 
        Dictionary<string, string> myDict =  
           new Dictionary<string, string>(); 
  
        // Adding key/value pairs in myDict 
        myDict.Add("Australia", "Canberra"); 
        myDict.Add("Belgium", "Brussels"); 
        myDict.Add("Netherlands", "Amsterdam"); 
        myDict.Add("China", "Beijing"); 
        myDict.Add("Russia", "Moscow"); 
        myDict.Add("India", "New Delhi"); 
  
        // To get count of key/value pairs in myDict 
        Console.WriteLine("Total key/value pairs"+ 
               " in myDict are:" + myDict.Count); 
  
        // To get the values alone, 
        // use the Values property. 
        Dictionary<string, string>.ValueCollection valueColl =  
                                                myDict.Values; 
  
        // The elements of the ValueCollection 
        // are strongly typed with the type  
        // that was specified for dictionary values. 
        foreach(string s in valueColl) 
        { 
            Console.WriteLine("Value = {0}", s); 
        } 
    } 
}

输出：

Total key/value pairs in myDict are:6
Value = Canberra
Value = Brussels
Value = Amsterdam
Value = Beijing
Value = Moscow
Value = New Delhi

范例2：

// C# code to get the values 
// in the Dictionary 
using System; 
using System.Collections.Generic; 
  
class GFG { 
  
    // Driver code 
    public static void Main() 
    { 
  
        // Create a new dictionary of 
        // strings, with string keys. 
        Dictionary<int, int> myDict =  
           new Dictionary<int, int>(); 
  
        // Adding key/value pairs in myDict 
        myDict.Add(9, 8); 
        myDict.Add(3, 4); 
        myDict.Add(4, 7); 
        myDict.Add(1, 7); 
  
        // To get count of key/value pairs in myDict 
        Console.WriteLine("Total key/value pairs "+ 
                "in myDict are:" + myDict.Count); 
  
        // To get the values alone,  
        // use the Values property. 
        Dictionary<int, int>.ValueCollection valueColl =   
                                           myDict.Values; 
  
        // The elements of the ValueCollection 
        // are strongly typed with the type  
        // that was specified for dictionary values. 
        foreach(int s in valueColl) 
        { 
            Console.WriteLine("Values = {0}", s); 
        } 
    } 
}

输出：

Total key/value pairs in myDict are:4
Values = 8
Values = 4
Values = 7
Values = 7

参考：

https://docs.microsoft.com/en-us/dotnet/api/system.collections.generic.dictionary-2.values?view=netframework-4.7.2

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注：本文由纯净天空筛选整理自rupesh_rao大神的英文原创作品 C# | Dictionary.Values Property。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。