获取 SortedList 对象中的键 C#
csharpserver side programmingprogramming更新于 2025/5/20 14:22:17
要获取 SortedList 对象中的键，代码如下 −
示例
using System;
using System.Collections;
public class Demo {
public static void Main(String[] args) {
SortedList list = new SortedList();
list.Add("One", "Finance");
list.Add("Two", "Marketing");
list.Add("Three", "Sales");
list.Add("Four", "Purchase");
list.Add("Five", "Operations");
list.Add("Six", "IT");
Console.WriteLine("SortedList elements...");
foreach(DictionaryEntry d in list) {
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("
Index at key One = "+list.IndexOfKey("One"));
ICollection col = list.Keys;
Console.WriteLine("
Collection of Keys...");
foreach(string res in col)
Console.WriteLine(res);
}
}
输出
这将产生以下输出 −
SortedList elements... Five Operations Four Purchase One Finance Six IT Three Sales Two Marketing Index at key One = 2 Collection of Keys... Five Four One Six Three Two
示例
让我们看另一个例子 −
using System;
using System.Collections;
public class Demo {
public static void Main(String[] args) {
SortedList list1 = new SortedList();
list1.Add("One", 1);
list1.Add("Two ", 2);
list1.Add("Three ", 3);
list1.Add("Four", 4);
list1.Add("Five", 5);
list1.Add("Six", 6);
list1.Add("Seven ", 7);
list1.Add("Eight ", 8);
list1.Add("Nine", 9);
list1.Add("Ten", 10);
Console.WriteLine("SortedList1 elements...");
foreach(DictionaryEntry d in list1) {
Console.WriteLine(d.Key + " " + d.Value);
}
ICollection col = list1.Keys;
Console.WriteLine("
Collection of Keys in List1...");
foreach(string res in col)
Console.WriteLine(res);
SortedList list2 = new SortedList();
list2.Add("A", "Accessories");
list2.Add("B", "Books");
list2.Add("C", "Smart Wearable Tech");
list2.Add("D", "Home Appliances");
Console.WriteLine("
SortedList2 elements...");
foreach(DictionaryEntry d in list2) {
Console.WriteLine(d.Key + " " + d.Value);
}
col = list2.Keys;
Console.WriteLine("
Collection of Keys in List2...");
foreach(string res in col)
Console.WriteLine(res);
}
}
输出
这将产生以下输出 −
SortedList1 elements... Eight 8 Five 5 Four 4 Nine 9 One 1 Seven 7 Six 6 Ten 10 Three 3 Two 2 Collection of Keys in List1... Eight Five Four Nine One Seven Six Ten Three Two SortedList2 elements... A Accessories B Books C Smart Wearable Tech D Home Appliances Collection of Keys in List2... A B C D
