C#输出日志测试代码

private void WriteFile(string psSql)
{
string logfilename = "c://1//GJ.txt";
System.IO.StreamWriter write;
write = new System.IO.StreamWriter(logfilename, true, System.Text.Encoding.Default);
write.BaseStream.Seek(0, System.IO.SeekOrigin.End);
write.AutoFlush = true;
if (null != write)
{
lock (write)
{
write.WriteLine("TBDataPass(). Time:" + DateTime.Now.ToString());
write.WriteLine("sql:" + psSql);
write.Flush();
}
}
write.Close();
write = null;
}