C#操作程序配置文件（ini）辅助类

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Runtime.InteropServices;
 6 using System.IO;
 7 
 8 namespace CommonLibrary
 9 {
10 
11     public class ConfigHelper
12     {
13         public string iniPath;
14         /// <summary>
15         /// 写入ini文件的函数
16         /// </summary>
17         /// <param name="section">段落</param>
18         /// <param name="key">以单词开头的关键字</param>
19         /// <param name="value"> 关键字值</param>
20         /// <param name="filePath">INI文件的完整路径和名称</param>
21         /// <returns></returns>
22         [DllImport("Kernel 32")]
23         private static extern long WritePrivateProfileString(String section, String key, string value, String filePath);
24 
25         /// <summary>
26         /// ini文件读操作函数
27         /// </summary>
28         /// <param name="section">段落</param>
29         /// <param name="key">以单词开头的关键字</param>
30         /// <param name="def">无法读取时候时候的缺省数值</param>
31         /// <param name="refValue">读取数值</param>
32         /// <param name="size">数值的大小</param>
33         /// <param name="filepath">INI文件的完整路径和名称</param>
34         /// <returns></returns>
35         [DllImport("kernel32")]
36         private static extern int GetPrivateProfileString(String section, String key, String def, StringBuilder refValue, int size, String filepath);
37 
38         public ConfigHelper(String filePath)
39         {
40             iniPath = filePath;
41         }
42         /// <summary>
43         /// 写入ini文件
44         /// </summary>
45         /// <param name="section">段落</param>
46         /// <param name="key">关键字</param>
47         /// <param name="value">关键字值</param>
48         public void WriteIni(String section,String key,string value)
49         {
50             WritePrivateProfileString(section, key, value, this.iniPath);
51         }
52         /// <summary>
53         /// 读取ini文件
54         /// </summary>
55         /// <param name="selection">段落</param>
56         /// <param name="key">关键字</param>
57         /// <returns></returns>
58         public String GetInn(String selection, String key)
59         {
60             StringBuilder temp = new StringBuilder(500);
61             Int32 i = GetPrivateProfileString(selection, key, "", temp, 500, this.iniPath);
62             return temp.ToString();
63         }
64         /// <summary>
65         /// 验证文件是否存在
66         /// </summary>
67         /// <returns></returns>
68         public bool ExistsFile()
69         {
70             return File.Exists(this.iniPath);
71         }
72     }
73 }