C# 日志寫在txt文件中的代碼

// strLog 參數：寫到txt文本的內容

public static void WriteLog(string strLog)
{
string sFilePath = "c:\\" + DateTime.Now.ToString("yyyyMM");
string sFileName = "rizhi" + DateTime.Now.ToString("dd") + ".log";
sFileName = sFilePath + "\\" + sFileName; //文件的絕對路徑
if (!Directory.Exists(sFilePath))//驗證路徑是否存在
{
Directory.CreateDirectory(sFilePath);
//不存在則創建
}
FileStream fs;
StreamWriter sw;
if (File.Exists(sFileName))
//驗證文件是否存在，有則追加，無則創建
{
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();
}