C#数组越界异常IndexOutOfRangeException的原因及解决方案

int[] numbers = { 1, 2, 3, 4, 5 };
int number = numbers[10]; // 索引10超出范围，抛出异常

int[] numbers = { 1, 2, 3, 4, 5 };
int index = int.Parse(Console.ReadLine()); // 用户输入的索引可能超出范围
int number = numbers[index];

int[] numbers = { 1, 2, 3, 4, 5 };
for (int i = 0; i <= numbers.Length; i++) // 终止条件应为 i < numbers.Length
{
    Console.WriteLine(numbers[i]);
}

int[] numbers = { 1, 2, 3, 4, 5 };
int index = 10;
if (index >= 0 && index < numbers.Length)
{
    Console.WriteLine(numbers[index]);
}
else
{
    Console.WriteLine("索引超出范围");
}

int[] numbers = { 1, 2, 3, 4, 5 };
try
{
    int number = numbers[10];
    Console.WriteLine("访问到的元素值: " + number);
}
catch (IndexOutOfRangeException ex)
{
    Console.WriteLine("数组越界异常: " + ex.Message);
}

using System;
using System.Linq;

class Program
{
    static void Main()
    {
        int[] numbers = { 1, 2, 3, 4, 5 };
        int result = numbers.ElementAtOrDefault(10);
        Console.WriteLine(result == 0 ? "索引无效" : result.ToString());
    }
}

int[] numbers = { 1, 2, 3, 4, 5 };
for (int i = 0; i < numbers.Length; i++)
{
    Console.WriteLine(numbers[i]);
}

int[] numbers = { 1, 2, 3, 4, 5 };
object lockObj = new object();

// 线程1
Task.Run(() =>
{
    lock (lockObj)
    {
        // 访问或修改数组元素
    }
});

// 线程2
Task.Run(() =>
{
    lock (lockObj)
    {
        // 访问或修改数组元素
    }
});

int[] numbers = { 1, 2, 3, 4, 5 };
Console.WriteLine("请输入一个索引（0-4）：");
int index;
while (!int.TryParse(Console.ReadLine(), out index) || index < 0 || index >= numbers.Length)
{
    Console.WriteLine("输入无效，请重新输入：");
}
Console.WriteLine("访问到的元素值: " + numbers[index]);