从C#中的SortedList中删除具有指定键的元素
要从SortedList中删除具有指定键的元素，代码如下-
示例
using System;using System.Collections;
public class Demo {
public static void Main(String[] args) {
SortedList sortedList = new SortedList();
sortedList.Add("A", "1");
sortedList.Add("B", "2");
sortedList.Add("C", "3");
sortedList.Add("D", "4");
sortedList.Add("E", "5");
sortedList.Add("F", "6");
sortedList.Add("G", "7");
sortedList.Add("H", "8");
sortedList.Add("I", "9");
sortedList.Add("J", "10");
Console.WriteLine("SortedList elements...");
foreach(DictionaryEntry d in sortedList) {
Console.WriteLine("Key = "+d.Key + ", Value = " + d.Value);
}
Console.WriteLine("Count of SortedList key-value pairs = "+sortedList.Count);
sortedList.Remove("H");
Console.WriteLine("\nEnumerator to iterate through the SortedList...");
IDictionaryEnumerator demoEnum = sortedList.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("Count of SortedList key-value pairs (Updated) = "+sortedList.Count);
}
}
输出结果
这将产生以下输出-
SortedList elements...Key = A, Value = 1
Key = B, Value = 2
Key = C, Value = 3
Key = D, Value = 4
Key = E, Value = 5
Key = F, Value = 6
Key = G, Value = 7
Key = H, Value = 8
Key = I, Value = 9
Key = J, Value = 10
Count of SortedList key-value pairs = 10
Enumerator to iterate through the SortedList...
Key = A, Value = 1
Key = B, Value = 2
Key = C, Value = 3
Key = D, Value = 4
Key = E, Value = 5
Key = F, Value = 6
Key = G, Value = 7
Key = I, Value = 9
Key = J, Value = 10
Count of SortedList key-value pairs (Updated) = 9
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 sortedList = new SortedList();
sortedList.Add("One", "Mouse");
sortedList.Add("Two", "Keyboard");
sortedList.Add("Three", "Headphone");
sortedList.Add("Four", "Speakers");
sortedList.Add("Five", "RAM");
Console.WriteLine("SortedList elements...");
foreach(DictionaryEntry d in sortedList) {
Console.WriteLine("Key = "+d.Key + ", Value = " + d.Value);
}
Console.WriteLine("Count of SortedList key-value pairs = "+sortedList.Count);
sortedList.Remove("Three");
Console.WriteLine("\nEnumerator to iterate through the SortedList...");
IDictionaryEnumerator demoEnum = sortedList.GetEnumerator();
while (demoEnum.MoveNext())
Console.WriteLine("Key = " + demoEnum.Key + ", Value = " + demoEnum.Value);
Console.WriteLine("Count of SortedList key-value pairs (Updated) = "+sortedList.Count);
}
}
输出结果
这将产生以下输出-
SortedList elements...Key = Five, Value = RAM
Key = Four, Value = Speakers
Key = One, Value = Mouse
Key = Three, Value = Headphone
Key = Two, Value = Keyboard
Count of SortedList key-value pairs = 5
Enumerator to iterate through the SortedList...
Key = Five, Value = RAM
Key = Four, Value = Speakers
Key = One, Value = Mouse
Key = Two, Value = Keyboard
Count of SortedList key-value pairs (Updated) = 4
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