c#中对文件的操作小结(http://www.a2605.org/ddvipcom/program/c-/index1/134.htm)-优快云博客

本文介绍了使用C#进行文件的基本操作，包括创建、读取和追加文本到文件的方法。通过具体的代码示例展示了如何利用StreamWriter和StreamReader类来完成这些任务。

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");
   }
}

转载于:https://www.cnblogs.com/snowball/archive/2006/07/04/442018.html