一个简单的日志类，测试时候用

class LogWriter

2 {

3 private static string path = Application.StartupPath + "\\log.txt";

4 static LogWriter()

5 {

6

7 if (!File.Exists(path))

8 {

9 FileStream fs = File.Create(path);

fs.Close();

}

Log("Log Start:");

}

public static void Log(string str)

{

StreamWriter sw = File.AppendText(path);

sw.WriteLine(DateTime.Now.ToLongTimeString() + ": " + str);

sw.Close();

}

public static void Error(string str)

{

StreamWriter sw = File.AppendText(path);

sw.WriteLine(DateTime.Now.ToLongTimeString() + ": Error " + str);

sw.Close();

}

}