唉，网上到处找一圈，真是麻烦，自己结合别人写的，重新整理一个。 这个破玩意最大的作用就是写微信那种没法顺利断点调试的程序的时候，在需要的地方写日志，然后去查看。真是回到当年用DW4写php的年代了，可惜一点怀旧的喜悦都没有，有的只是慢慢的无奈
using System.Collections.Generic; using System.Linq; using System.Text; using System.IO; /// <summary> /// 日志文件存放文件夹分类枚举 /// </summary> public enum LogType { /// <summary> /// 普通信息 /// </summary> Info, /// <summary> /// 错误 /// </summary> Error, /// <summary> /// 其他全部信息 /// </summary> Overall, } public class LogHelper { /// <summary> /// 日志存放路径 /// </summary> public static string LogPath { get { return AppDomain.CurrentDomain.BaseDirectory + @"\log"; } } /// <summary> /// 信息类型 /// </summary> public enum LogLevel { /// <summary> /// 普通信息 /// </summary> Info, /// <summary> /// 错误 /// </summary> Error } /// <summary> /// 普通信息写入日志 /// </summary> /// <param name="message"></param> /// <param name="logType"></param> public static void Info(string message, LogType logType = LogType.Overall) { if (string.IsNullOrEmpty(message)) return; var path = string.Format(@"\{0}\", logType.ToString()); WriteLog(path, "", message); } /// <summary> /// 自定义错误信息写入 /// </summary> /// <param name="message">自定义消息</param> /// <param name="logType">存储目录类型</param> public static void Error(string message, LogType logType = LogType.Overall) { if (string.IsNullOrEmpty(message)) return; var path = string.Format(@"\{0}\", logType.ToString()); WriteLog(path, "Error ", message); } /// <summary> /// 程序异常信息写入 /// </summary> /// <param name="e">异常</param> /// <param name="logType">存储目录类型</param> public static void Error(Exception e, LogType logType = LogType.Overall) { if (e == null) return; var path = string.Format(@"\{0}\", logType.ToString()); WriteLog(path, "Error ", e.Message); } /// <summary> /// 写日志的最终执行动作 /// </summary> /// <param name="path">文件路径</param> /// <param name="prefix">前缀</param> /// <param name="message">内容</param> public static void WriteLog(string path, string prefix, string message) { path = LogPath + path; var fileName = string.Format("{0}{1}.log", prefix, DateTime.Now.ToString("yyyyMMdd")); if (!Directory.Exists(path)) Directory.CreateDirectory(path); using (FileStream fs = new FileStream(path + fileName, FileMode.Append, FileAccess.Write, FileShare.Write, 1024, FileOptions.Asynchronous)) { byte[] buffer = System.Text.Encoding.UTF8.GetBytes(DateTime.Now.ToString("HH:mm:ss") + " " + message + "\r\n"); IAsyncResult writeResult = fs.BeginWrite(buffer, 0, buffer.Length, (asyncResult) => { var fStream = (FileStream)asyncResult.AsyncState; fStream.EndWrite(asyncResult); }, fs); fs.Close(); } } }