一個完整的INI文件格式由節(section)、鍵(key)、值(value)組成。
示例如:
[section]
key1=value1
key2=value2
; 備注:value的值不要太長,理論上最多不能超過65535個字節。
在Windows程序開發中經常會遇到讀寫INI配置文件的情況,以下C#類封裝了對INI配置文件讀寫修改的操作
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
namespace CRApp
{
public class INIHelper
{
private string FilePath;
public string Path
{
get { return this.FilePath; }
set
{
if (value.Substring(0, 1) == "\\" || value.Substring(0, 1) == "/")
{
this.FilePath = AppDomain.CurrentDomain + value;
}
else
{
this.FilePath = value;
}
}
}
[DllImport("kernel32")]
private static extern bool WritePrivateProfileString(string section, string key, string val, string filePath);
[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
public INIHelper(string _Path)
{
this.Path = _Path;
}
public void WriteValue(string Section, string Key, string Value)
{
WritePrivateProfileString(Section, Key, Value, this.FilePath);
}
public string ReadValue(string Section, string Key)
{
try
{
StringBuilder temp = new StringBuilder();
int i = GetPrivateProfileString(Section, Key, "", temp, -1, this.FilePath);
return temp.ToString();
}
catch { return ""; }
}
public void RemoveKey(string Section, string Key)
{
WritePrivateProfileString(Section, Key, null, this.FilePath);
}
public bool RemoveSection(string Section)
{
return WritePrivateProfileString(Section, null, null, this.FilePath);
}
public bool Exists()
{
return System.IO.File.Exists(this.FilePath);
}
}
}
參考:
[1] WritePrivateProfileString 函數: https://baike.baidu.com/item/WritePrivateProfileString/9711454
[2] GetPrivateProfileString 函數: https://baike.baidu.com/item/GetPrivateProfileString/9642262