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【CSharp】往txt中写日志

作者:dezai / 发布于2014/1/7/ 351

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Windows.Forms;

namespace Common
{
  public class Log
  {
    private string logFile;
    private StreamWriter writer;
    private FileStream fileStream = null;

    public Log(string fileName)
    {
      logFile = fileName;
      CreateDirectory(logFile);
    }

    public void log(string info)
    {

      try
      {
        System.IO.FileInfo fileInfo = new System.IO.FileInfo(logFile);
        if (!fileInfo.Exists)
        {
          fileStream = fileInfo.Create();
          writer = new StreamWriter(fileStream);
        }
        else
        {
          fileStream = fileInfo.Open(FileMode.Append, FileAccess.Write);
          writer = new StreamWriter(fileStream);
        }
        writer.WriteLine(DateTime.Now + ": " + info);

      }
      finally
      {
        if (writer != null)
        {
          writer.Close();
          writer.Dispose();
          fileStream.Close();
          fileStream.Dispose();
        }
      }
    }

    public void CreateDirectory(string infoPath)
    {
      DirectoryInfo directoryInfo = Directory.GetParent(infoPath);
      if (!directoryInfo.Exists)
      {
        directoryInfo.Create();
      }
    }
  }
}

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