C# 日志写在txt文件中的代码

// strLog 参数：写到txt文本的内容

public static void WriteLog(string strLog)
{
string sFilePath = "c:\\" + DateTime.Now.ToString("yyyyMM");
string sFileName = "rizhi" + DateTime.Now.ToString("dd") + ".log";
sFileName = sFilePath + "\\" + sFileName; //文件的绝对路径
if (!Directory.Exists(sFilePath))//验证路径是否存在
{
Directory.CreateDirectory(sFilePath);
//不存在则创建
}
FileStream fs;
StreamWriter sw;
if (File.Exists(sFileName))
//验证文件是否存在，有则追加，无则创建
{
fs = new FileStream(sFileName, FileMode.Append, FileAccess.Write);
}
else
{
fs = new FileStream(sFileName, FileMode.Create, FileAccess.Write);
}
sw = new StreamWriter(fs);
sw.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") + " --- " + strLog);
sw.Close();
fs.Close();
}