在 C# 中从 StringCollection 中删除第一个匹配项
csharpserver side programmingprogramming更新于 2025/8/31 13:52:17
要从 StringCollection 中删除第一个匹配项，代码如下 −
示例
using System;
using System.Collections.Specialized;
public class Demo {
public static void Main() {
StringCollection stringCol = new StringCollection();
String[] arr = new String[] { "100", "200", "100", "400", "500" };
Console.WriteLine("Array elements...");
foreach (string res in arr) {
Console.WriteLine(res);
}
stringCol.AddRange(arr);
Console.WriteLine("Total number of elements = "+stringCol.Count);
stringCol.Remove("100");
Console.WriteLine("Total number of elements now = "+stringCol.Count);
}
}
输出
这将产生以下输出 −
Array elements... 100 200 100 400 500 Total number of elements = 5 Total number of elements now = 4
示例
让我们看另一个例子 −
using System;
using System.Collections.Specialized;
public class Demo {
public static void Main() {
StringCollection stringCol = new StringCollection();
String[] arr = new String[] { "10", "20", "30", "40", "50", "60", "70", "80" };
Console.WriteLine("Array elements...");
foreach (string res in arr) {
Console.WriteLine(res);
}
stringCol.AddRange(arr);
Console.WriteLine("Total number of elements = "+stringCol.Count);
stringCol.Remove("50");
stringCol.Remove("60");
stringCol.Remove("70");
Console.WriteLine("Total number of elements now = "+stringCol.Count);
}
}
输出
这将产生以下输出 −
Array elements... 10 20 30 40 50 60 70 80 Total number of elements = 8 Total number of elements now = 5
