最近用到保存文件的相关东西，主要是封装两个函数，代码如下：可以直接使用
using System;
using System.Collections.Specialized;
using System.IO;
using System.Runtime.InteropServices;
using System.Text;
namespace IniFileTest
{
public class INI
{
const int COUNT = 0xFFFF;
[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, byte[] buffer, int size, string filePath);
/// <summary>
/// ini关联的文件
/// </summary>
private string FileName;
public INI(string filename)
{
FileInfo file = new FileInfo(filename);
if (file.Exists)
{
FileName = new FileInfo(filename).FullName;
}
}
/// <summary>
/// 删除Section
/// </summary>
/// <param name="SectionName"></param>
/// <returns></returns>
public bool EraseSection(string SectionName)
{
return WritePrivateProfileString(SectionName, null, null, FileName);
}
/// <summary>
/// 写入section 键值对，如果没有section 则创建并写入
/// </summary>
/// <param name="section"></param>
/// <param name="key"></param>
/// <param name="value"></param>
/// <returns></returns>
public bool Write(string section, string key, string value)
{
return WritePrivateProfileString(section, key, value, FileName);
}
/// <summary>
/// 删除键
/// </summary>
/// <param name="section"></param>
/// <param name="key"></param>
/// <returns></returns>
public bool EraseKey(string section, string key)
{
return WritePrivateProfileString(section, key, null, FileName);
}
/// <summary>
/// 获取所有section
/// </summary>
/// <returns></returns>
public StringCollection GetSections()
{
StringCollection sections = new StringCollection();
byte[] buffer = new byte[COUNT];
int length = GetPrivateProfileString(null, null, null, buffer, COUNT, FileName);
int start = 0;
for (int i = 0; i < length; i++)
{
if (buffer[i] == 0 && i > start)
{
string str = Encoding.Default.GetString(buffer, start, i - start);
sections.Add(str);
start = i + 1; ;
}
}
return sections;
}
/// <summary>
/// 获取section下的所哟keys
/// </summary>
/// <param name="section"></param>
/// <returns></returns>
public StringCollection GetSectionKeys(string section)
{
StringCollection keys = new StringCollection();
byte[] buffer = new byte[COUNT];
int length = GetPrivateProfileString(section, null, null, buffer, COUNT, FileName);
int start = 0;
for (int i = 0; i < length; i++)
{
if (buffer[i] == 0 && i > start)
{
string str = Encoding.Default.GetString(buffer, start, i - start);
keys.Add(str);
start = i + 1; ;
}
}
return keys;
}
/// <summary>
/// 查寻指定的key的值,没有则返回defaultvalue
/// </summary>
/// <param name="section"></param>
/// <param name="key"></param>
/// <param name="defaultvalue"></param>
/// <returns></returns>
public String GetValue(String section, string key, string defaultvalue)
{
byte[] bytes = new byte[COUNT];
int s = GetPrivateProfileString(section, key, defaultvalue, bytes, COUNT, FileName);
string str = Encoding.GetEncoding(0).GetString(bytes, 0, s);
return defaultvalue;
}
}
}