从C#应用程序打开txt文件

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\example.txt";
        using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read))
        {
            using (StreamReader sr = new StreamReader(fs))
            {
                string line;
                while ((line = sr.ReadLine()) != null)
                {
                    Console.WriteLine(line);
                }
            }
        }
    }
}

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string path = @"C:\example.txt";
        string[] lines = File.ReadAllLines(path);
        foreach (string line in lines)
        {
            Console.WriteLine(line);
        }
    }
}

using System;
using System.IO;
using System.Collections.Generic;

class Program
{
    static void Main()
    {
        string path = @"C:\example.txt";
        foreach (string line in File.ReadLines(path))
        {
            Console.WriteLine(line);
        }
    }
}