记录错误日志

/// <summary>
/// 记录错误日志
/// </summary>
/// <param name="inErrorMsg">错误内容</param>
private void Error(string inErrorMsg)
{
string logDirectory = Server.MapPath("~\\log");
if (!Directory.Exists(logDirectory))
Directory.CreateDirectory(logDirectory);
System.IO.File.AppendAllText(
string.Format(logDirectory + "\\ErrorLog{0}.txt", DateTime.Now.ToString("yyyyMMdd")),
DateTime.Now.ToString("(yyyy-MM-dd HH:mm:ss)：") + inErrorMsg + "\r\n==============================================\r\n");
}

Error(ex.Message);