在 C# 中查找数组中第一个元素的索引
csharpserver side programmingprogramming
要查找数组中第一个元素的索引，代码如下 −
示例
using System;
public class Demo {
public static void Main() {
string[] products = new string[] { "Andy", "Mark", "Gary", "Andre"};
Console.WriteLine("One or more name begin with 'A'? = {0}",
Array.Exists(products, ele => ele.StartsWith("A")));
Console.WriteLine("Is the array having fixed size? = " + products.IsFixedSize);
Console.WriteLine("Is the array read only? = " + products.IsReadOnly);
Console.WriteLine("Is the array synchronized? = " + products.IsSynchronized);
Console.WriteLine("Index of the 1st element = "+products.GetLowerBound(0));
}
}
输出
这将产生以下输出 −
One or more name begin with 'A'? = True Is the array having fixed size? = True Is the array read only? = False Is the array synchronized? = False Index of the 1st element = 0
示例
让我们看另一个例子 −
using System;
public class Demo {
public static void Main() {
string[] products = new string[] { };
Console.WriteLine("Is the array having fixed size? = " + products.IsFixedSize);
Console.WriteLine("Is the array read only? = " + products.IsReadOnly);
Console.WriteLine("Is the array synchronized? = " + products.IsSynchronized);
Console.WriteLine("Index of the 1st element = "+products.GetLowerBound(0));
}
}
输出
这将产生以下输出 −
Is the array having fixed size? = True Is the array read only? = False Is the array synchronized? = False Index of the 1st element = 0
