在C#中查找数组中最后一个元素的索引
要找到数组中最后一个元素的索引，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));
Console.WriteLine("Index of the last element = "+products.GetUpperBound(0));
}
}输出结果
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 Index of the last element = 3
示例
现在让我们来看另一个示例-
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));
Console.WriteLine("Index of the last element = "+products.GetUpperBound(0));
}
}输出结果
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 Index of the last element = -1
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