从C#中的StringCollection中删除第一个匹配项
要从StringCollection中删除第一次出现的代码，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);
}
}输出结果
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);
}
}输出结果
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