如何在sortedList中获取特定值的范围键

using System;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        SortedList<int, string> sortedList = new SortedList<int, string>();

        // 添加一些示例数据
        sortedList.Add(1, "Apple");
        sortedList.Add(2, "Banana");
        sortedList.Add(3, "Cherry");
        sortedList.Add(4, "Durian");
        sortedList.Add(5, "Grape");

        int targetValue = 3; // 目标值

        List<int> keys = sortedList.GetKeyList(); // 获取键列表

        // 二分查找算法
        int minIndex = 0;
        int maxIndex = keys.Count - 1;
        int minKey = -1;
        int maxKey = -1;

        while (minIndex <= maxIndex)
        {
            int midIndex = (minIndex + maxIndex) / 2;
            int midKey = keys[midIndex];

            if (midKey == targetValue)
            {
                minKey = midKey;
                maxKey = midKey;
                break;
            }
            else if (midKey < targetValue)
            {
                minKey = midKey;
                minIndex = midIndex + 1;
            }
            else
            {
                maxKey = midKey;
                maxIndex = midIndex - 1;
            }
        }

        // 获取特定范围的键值对集合
        SortedList<int, string> rangeList = sortedList.GetRange(minKey, maxKey - minKey + 1);

        // 输出结果
        foreach (KeyValuePair<int, string> pair in rangeList)
        {
            Console.WriteLine("Key: {0}, Value: {1}", pair.Key, pair.Value);
        }
    }
}