c#中对文件的操作小结

www.wenhui.org 10/17/2002 CSharp vs Java

1、建立一个文本文件

public class FileClass
{
    public static void Main()
    {
        WriteToFile();
    }
    static void WriteToFile()
    {
        StreamWriter SW;
        SW = File.CreateText("c:\\MyTextFile.txt");
        SW.WriteLine("God is greatest of them all");
        SW.WriteLine("This is second line");
        SW.Close();
        Console.WriteLine("File Created SucacessFully");
    }
}

2、读文件

public class FileClass
{
    public static void Main()
    {
        ReadFromFile("c:\\MyTextFile.txt");
    }
    static void ReadFromFile(string filename)
    {
        StreamReader SR;
        string S;
        SR = File.OpenText(filename);
        S = SR.ReadLine();
        while (S != null)
        {
            Console.WriteLine(S);
            S = SR.ReadLine();
        }
        SR.Close();
    }
}

3、追加操作

public class FileClass
{
    public static void Main()
    {
        AppendToFile();
    }
    static void AppendToFile()
    {
        StreamWriter SW;
        SW = File.AppendText("C:\\MyTextFile.txt");
        SW.WriteLine("This Line Is Appended");
        SW.Close();
        Console.WriteLine("Text Appended Successfully");
    }
}