/// <summary> /// 将异常打印到LOG文件 /// </summary> /// <param name="ex">异常</param> /// <param name="LogAddress">日志文件地址</param> public static void WriteLog(Exception ex, string LogAddress = "") {     //如果日志文件为空，则默认在Debug目录下新建 YYYY-mm-dd_Log.log文件     if (LogAddress == "")     {         LogAddress = Environment.CurrentDirectory + '\\' +             DateTime.Now.Year + '-' +             DateTime.Now.Month + '-' +             DateTime.Now.Day + "_Log.log";     }     //把异常信息输出到文件     StreamWriter fs = new StreamWriter(LogAddress, true);     fs.WriteLine("当前时间：" + DateTime.Now.ToString());     fs.WriteLine("异常信息：" + ex.Message);     fs.WriteLine("异常对象：" + ex.Source);     fs.WriteLine("调用堆栈：\n" + ex.StackTrace.Trim());     fs.WriteLine("触发方法：" + ex.TargetSite);     fs.WriteLine();     fs.Close(); }