一般情况下是采用

Array.Sort(a)

来进行排序。

例子代码如下：

/*
 * C# Program to Sort a String using Predefined Function
 */
using System;
class linSearch
{
    public static void Main()
    {
        Console.WriteLine("Enter Number of Elements you Want to Hold in the Array? ");
        string s = Console.ReadLine();
        int x = Int32.Parse(s);
        int[] a = new int[x];
        Console.WriteLine("Enter Array Elements :");
        for (int i = 0; i < x; i++)
        {
            string s1 = Console.ReadLine();
            a[i] = Int32.Parse(s1);
        }