C# 程序检查值是否在数组中
csharpprogrammingserver side programming更新于 2025/9/17 5:54:00
使用 Array.Exists 方法检查值是否在数组中。
设置字符串数组 −
string[] strArray = new string[] {"keyboard", "screen", "mouse", "charger" };
假设您需要在数组中找到值 “keyboard”。为此，请使用 Array.Exists() −
Array.Exists(strArray, ele => ele == "keyboard");
如果元素存在，则返回真值，如下所示 −
示例
using System;
using System.Text;
public class Demo {
public static void Main() {
string[] strArray = new string[] {"keyboard", "screen", "mouse", "charger" };
bool res1 = Array.Exists(strArray, ele => ele == "harddisk");
Console.WriteLine(res1);
bool res2 = Array.Exists(strArray, ele => ele == "keyboard");
Console.WriteLine(res2);
}
}
输出
False True
