using System; using System.IO;
namespace WriteLog { /// <summary> /// WriteInLog 的摘要说明。 /// </summary> public class WriteInLog { private string logFileName; private int logFileSizes; /// <summary> /// 写入日志文件 /// </summary> public WriteInLog() { logFileName = @"d:\logfile.txt"; }
/// <summary> /// 自动删除日志文件大小,此方法已经重载. /// </summary> /// <param name="fileSize">日志文件大小,单位KB</param> public WriteInLog(int fileSize):this() { if(fileSize != 0) { this.logFileSizes = fileSize * 1024; } else { this.logFileSizes = 1024; } } /// <summary> /// 日志文件完全名,如:@"d:\logfile.txt" /// </summary> public string LogFileName { set { this.logFileName = value; } }
/// <summary> /// 写入日志信息 /// </summary> /// <param name="msg">日志内容</param> /// <param name="IsAutoDelete">是否自动删除日志</param> public void writeInLog(string msg) { if(logFileSizes != 0) { writeInLog(msg,true); } else { writeInLog(msg,false); } }
/// <summary> /// 写入日志信息 /// </summary> /// <param name="msg">日志内容</param> /// <param name="IsAutoDelete">是否自动删除日志</param> private void writeInLog(string msg,bool IsAutoDelete) { try { FileInfo fileinfo=new FileInfo(logFileName); if(IsAutoDelete) { if(fileinfo.Exists && fileinfo.Length >= logFileSizes) { fileinfo.Delete(); } } using(FileStream fs=fileinfo.OpenWrite()) { StreamWriter sw=new StreamWriter(fs); sw.BaseStream.Seek(0,SeekOrigin.End); sw.WriteLine("====================================="); sw.Write("添加日期为:" + DateTime.Now.ToString() +"\r\n"); sw.Write("日志内容为:" + msg + "\r\n"); sw.WriteLine("====================================="); sw.Flush(); sw.Close(); } } catch(Exception ex) { ex.ToString(); } } } }
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