c# - 读取文本文件并将信息保存到数组 C#

Question

早上好

我想咨询一下如何使用 C# 从文本文件中读取列表并将信息保存到列表(数组)中。

这是一个小练习，我将信息写入文本文件，现在我想读取信息并将其保存到不同的数组中。

string name;
        string selection;
        FileStream fs = new FileStream("C:/Documents and Settings/Arian/Desktop/Perl (PERLC-09)/bookExamples/unitThree/menuLunch.txt", FileMode.Create, FileAccess.ReadWrite);
        BufferedStream bs = new BufferedStream(fs);
        fs.Close();

        StreamWriter sw = new StreamWriter("C:/Documents and Settings/Arian/Desktop/Perl (PERLC-09)/bookExamples/unitThree/menuLunch.txt");
        Console.WriteLine("writing the menu");

        string[]menu = new string[]{"burger", "steak", "sandwich", "apple", "soup", "pasta", "pizza"};
        for (int i = 0; i < menu.Length; i++)
        {
            sw.WriteLine(menu[i]);
        }

        sw.Close();

        Console.WriteLine("Thanks for creating the menu, could you please tell me your name? ");

        name = Console.ReadLine();

        Console.WriteLine("hallo " + name + " Please make your selection from the menu");

        FileStream fsream = new FileStream("C:/Documents and Settings/Arian/Desktop/Perl (PERLC-09)/bookExamples/unitThree/menuLunch.txt", FileMode.Open, FileAccess.Read);
        BufferedStream bstream = new BufferedStream(fsream);
        fsream.Close();

        StreamReader sr = new StreamReader("C:/Documents and Settings/Arian/Desktop/Perl (PERLC-09)/bookExamples/unitThree/menuLunch.txt");


        while (!sr.EndOfStream)
        {
            Console.WriteLine(sr.ReadLine());
        }

        selection = Console.ReadLine();

问候

Answer 1

答案很简单。 File 类带有两个方便的方法，可帮助您从文件读取行或向文件写入行:

// Write
string path = "example.txt";
string[] myMenu = { "A", "B", "C" };
File.WriteAllLines(path, myMenu);

// Read
string[] readMenu = File.ReadAllLines(path);