c#中对文件的操作小结

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");
}
}