C＃如何通过list.count命令dictionary <string，list <string>>？

Question

我有一个dictionary其中的值是字符串的list。我想按照每个list中的字符串数量来排序字典。因此，我打印的第一张kvp是list中元素数最多的kvp。

我在另一个问题在这里看到了这个答案在stackoverflow，但我想我失去了一些东西。

foreach (var kvp in teams.OrderBy(x => x.Value.Count)) 

Answer 1

你很近，但它听起来像你想降：

using System; 
using System.Linq; 
using System.Collections.Generic; 

public class Program 
{ 
    public static void Main() 
    { 
     var teams = new Dictionary<string, List<string>>(); 
     teams.Add("Short List", new List<string> {"One","Two"}); 
     teams.Add("Medium List", new List<string> {"One","Two", "Three"}); 
     teams.Add("Long List", new List<string> {"One","Two", "Three", "Four"}); 

     foreach (var kvp in teams.OrderByDescending(x => x.Value.Count)) 
     { 
      Console.WriteLine("Team {0} has {1} items.", kvp.Key, kvp.Value.Count); 
     } 
    } 
} 

输出：

Team Long List has 4 items. 
Team Medium List has 3 items. 
Team Short List has 2 items. 

检查出来的.NET Fiddle。