} ///

/// 操作文件实现日志 ///

/// 日志内容 /// 存放日志的目录，如果想默认存在项目的 Debag 下，请 public Form1() { InitializeComponent(); public partial class Form1 : Form { using System; 2 using System.Collections.Generic; 3 using System.ComponentModel; 4 using System.Data; 5 using System.Drawing; 6 using System.Text; 7 using System.Windows.Forms; 8 using System.IO; 9 10 namespace LogDemo 11 { 12 13 14 15 16 17 18 19 20 21 22 输入 Null 23 24 25 26 27 28 29 30 31 32 33 34 年" + DateTime.Now.Month.ToString()+"月"; 35 36 37 38 39 40 41 FileMode.OpenOrCreate, FileAccess.Write, FileShare.None); private void logger(String msg,string lonPath) { string LogPath = null; if (lonPath != null) { LogPath = lonPath; LogPath =Application.StartupPath; } else { } } string filePath = LogPath + "\\" + DateTime.Now.Year.ToString()+" string fileName = DateTime.Now.Day.ToString() + "日" + ".Log"; string filePathAll = filePath + "\\" + fileName; if (!System.IO.Directory.Exists(filePath)) { System.IO.Directory.CreateDirectory(filePath); FileStream filestream = new FileStream(filePathAll, 

StreamWriter writer = new StreamWriter(filestream, writer.BaseStream.Seek(0, SeekOrigin.End); writer.WriteLine("{0} {1}", DateTime.Now.TimeOfDay , msg); writer.Flush(); writer.Close(); filestream.Close(); //测试方法 private void button1_Click(object sender, EventArgs e) { } try { byte str=0 ; 42 System.Text.Encoding.Default); 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 } if (true) { } else { } } } str = (byte)Convert.ToSByte(600); str = (byte)Convert.ToSByte(500); } } catch(Exception ex) { logger(ex.Message,null);