简单的日志管理代码

自己写的记录日志，定期删除日志的方法。
方法比较简单，记录一下吧。
 1         /// <summary>
 2         /// 写日志
 3         /// </summary>
 4         /// <param name="strMsg">内容</param>
 5         /// <param name="strPath">路径（相对hycom下的文件夹路径）</param>
 6         /// <param name="fileName">日志名（默认yyyy-MM-dd.txt）</param>
 7         public static void WriteLog(string strMsg,string strPath,string fileName)
 8         {
 9             string path = AppDomain.CurrentDomain.BaseDirectory + strPath;
10             if(!path.EndsWith("\")||!path.EndsWith("/"))
11             {
12                 path+="\";
13             }
14             if(!Directory.Exists(path))
15             {
16                 Directory.CreateDirectory(path);
17             }
18             DeleteLog(path);
19             if(fileName=="")
20             {
21                 fileName = DateTime.Now.ToString("yyyy-MM-dd")+".txt";
22             }
23             if(!fileName.EndsWith(".txt"))
24             {
25                 fileName+=".txt";
26             }
27             try
28             {
29                 //string fileName =DateTime.Now.ToString("yyyy-MM-dd") + ".txt";
30 
31                 StreamWriter sw = File.AppendText(path+fileName);
32 
33                 sw.WriteLine("{0}：{1}", DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff"), strMsg);
34                 //sw.WriteLine("

");
35                 sw.Flush();
36                 sw.Close();
37             }
38             catch { }
39         }
40         /// <summary>
41         /// 写日志
42         /// </summary>
43         /// <param name="strMsg">内容</param>
44         /// <param name="strPath">路径（相对hycom下的文件夹路径）</param>
45         public static void WriteLog(string strMsg,string strPath)
46         {
47             string fileName = DateTime.Now.ToString("yyyy-MM-dd")+".txt";
48             WriteLog(strMsg,strPath,fileName);
49         }
50 
51         /// <summary>
52         /// 定期删除日志
53         /// </summary>
54         /// <param name="strPath">日志路径</param>
55         private static void DeleteLog(string strPath)
56         {
57             
58             if(Directory.Exists(strPath))
59             {
60                 DirectoryInfo dinfor = new DirectoryInfo(strPath);
61                 FileInfo[] files = dinfor.GetFiles();
62                 foreach(FileInfo file in files)
63                 {
64                     try
65                     {
66                         //删除创建日志日期是3个月前的日志
67                         if(DateTime.Compare(file.CreationTime.AddMonths(3),DateTime.Now)<0)
68                         {
69                             file.Delete();
70                         }
71                         //删除最后修改日志日期是3个月前的日志
72                         if(DateTime.Compare(file.LastWriteTime.AddMonths(3),DateTime.Now)<0)
73                         {
74                             file.Delete();
75                         }
76                         //删除日志名称日期是3个月前的日志
77                         if(DateTime.Compare(Convert.ToDateTime(file.Name.Substring(0,10)),DateTime.Now.AddMonths(-3))<0)
78                         {
79                             file.Delete();
80                         }
81                     }
82                     catch(Exception ex)
83                     {
84                         continue;
85                     }
86                 }
87             }
88         }
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