判断指定字符串是否在 C# 中的 StringCollection 中
要检查指定字符串是否在 StringCollection 中,代码如下所示 −
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", "300", "400", "500" }; Console.WriteLine("Array elements..."); foreach (string res in arr) { Console.WriteLine(res); } stringCol.AddRange(arr); Console.WriteLine("Does the specified string is in the StringCollection? = "+stringCol.Contains("800")); } }
输出
这会产生以下输出 −
Array elements... 100 200 300 400 500 Does the specified string is in the StringCollection? = False
示例
我们来看另一个示例 −
using System; using System.Collections.Specialized; public class Demo { public static void Main() { StringCollection stringCol = new StringCollection(); String[] arr = new String[] { "John", "Tim", "Kevin", "Bradman", "Katie", "Tom", "Nathan" }; Console.WriteLine("String array elements..."); foreach (string res in arr) { Console.WriteLine(res); } stringCol.AddRange(arr); Console.WriteLine("Does the specified string is in the StringCollection? = "+stringCol.Contains("Katie")); } }
输出
这会产生以下输出 −
String array elements... John Tim Kevin Bradman Katie Tom Nathan Does the specified string is in the StringCollection? = True
广告