简单项目中可使用ini做为配置文件，操作类如下。
1 public class INIClass
2 {
3 public string inipath;
4 [System.Runtime.InteropServices.DllImport("kernel32")]
5 private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
6 [System.Runtime.InteropServices.DllImport("kernel32")]
7 private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
8 /// <summary>
9 /// 构造方法
10 /// </summary>
11 /// <param name="INIPath">文件路径</param>
12 public INIClass(string INIPath)
13 {
14 inipath = INIPath;
15 }
16 /// <summary>
17 /// 写入INI文件
18 /// </summary>
19 /// <param name="Section">项目名称(如 [TypeName] )</param>
20 /// <param name="Key">键</param>
21 /// <param name="Value">值</param>
22 public void IniWriteValue(string Section, string Key, string Value)
23 {
24 WritePrivateProfileString(Section, Key, Value, this.inipath);
25 }
26 /// <summary>
27 /// 读出INI文件
28 /// </summary>
29 /// <param name="Section">项目名称(如 [TypeName] )</param>
30 /// <param name="Key">键</param>
31 public string IniReadValue(string Section, string Key)
32 {
33 StringBuilder temp = new StringBuilder(500);
34 int i = GetPrivateProfileString(Section, Key, "", temp, 500, this.inipath);
35 return temp.ToString();
36 }
37 /// <summary>
38 /// 验证文件是否存在
39 /// </summary>
40 /// <returns>布尔值</returns>
41 public bool ExistINIFile()
42 {
43 return File.Exists(inipath);
44 }
45 }
使用方法为：
INIClass ini=new INIClass(System.Windows.Forms.Application.StartupPath + "\\config.ini");
m_parentDirPath = ini.IniReadValue("road", "dir").Trim(); //读取
ini.IniWriteValue("road", "dir", "d:\\aa"); //写入
对应ini文件内容为：
[road]
dir=D:\lzx\data
参考：