向文件中写数据，读数据

1.          private void WriteFile(string strPath,string strWrite)
2.         {
3.             FileStream fs = new FileStream(strPath, FileMode.Create, FileAccess.Write);
4.             StreamWriter sw = new StreamWriter(fs);
5.             sw.WriteLine(strWrite);
6.             sw.Close();
7.         }
9.         private string ReadFile(string strPath)
10.         {
11.             string strRead = string.Empty;
12.             FileStream fs = new FileStream(strPath, FileMode.Open, FileAccess.Read);
13.             StreamReader sr = new StreamReader(fs);
15.             if (sr.Peek() != -1)
16.             {
17.                 strRead = sr.ReadLine();
18.             }
19.             sr.Close();
20.             return strRead;
21.         }