IniHelper

/// <summary>
/// ini文件操作类
/// </summary>
public class IniHelper
{
    #region 动态链接库调用
    /// <summary>
    /// 调用动态链接库读取值
    /// </summary>
    /// <param name="lpAppName">ini节名</param>
    /// <param name="lpKeyName">ini键名</param>
    /// <param name="lpDefault">默认值：当无对应键值，则返回该值。</param>
    /// <param name="lpReturnedString">结果缓冲区</param>
    /// <param name="nSize">结果缓冲区大小</param>
    /// <param name="lpFileName">ini文件位置</param>
    /// <returns></returns>
    [DllImport("kernel32")]
    private static extern int GetPrivateProfileString(
        string lpAppName,
        string lpKeyName,
        string lpDefault,
        StringBuilder lpReturnedString,
        int nSize,
        string lpFileName);

    /// <summary>
    /// 调用动态链接库写入值
    /// </summary>
    /// <param name="mpAppName">ini节名</param>
    /// <param name="mpKeyName">ini键名</param>
    /// <param name="mpDefault">写入值</param>
    /// <param name="mpFileName">文件位置</param>
    /// <returns>0：写入失败 1：写入成功</returns>
    [DllImport("kernel32")]
    private static extern long WritePrivateProfileString(
        string mpAppName,
        string mpKeyName,
        string mpDefault,
        string mpFileName);
    #endregion

    /// <summary>
    /// 读ini文件
    /// </summary>
    /// <param name="section">节</param>
    /// <param name="key">键</param>
    /// <returns>返回读取值</returns>
    public static string IniRead(string section, string key, string path)
    {
        StringBuilder stringBuilder = new StringBuilder(1024);                  //定义一个最大长度为1024的可变字符串
        GetPrivateProfileString(section, key, "", stringBuilder, 1024, path);   //读取INI文件
        return stringBuilder.ToString();                                        //返回INI文件的内容
    }

    /// <summary>
    /// 写ini文件
    /// </summary>
    /// <param name="section">节</param>
    /// <param name="key">键</param>
    /// <param name="iValue">待写入值</param>
    public static void IniWrite(string section, string key, string iValue, string path)
    {
        WritePrivateProfileString(section, key, iValue, path);    //写入
    }

    /// <summary>
    /// 根据文件名创建文件
    /// </summary>
    /// <param name="path">文件名称以及路径</param>
    public static void iniCreat(string path)
    {
        if (!File.Exists(path))                             //判断是否存在相关文件
        {
            FileStream _fs=File.Create(path);               //不存在则创建ini文件
            _fs.Close();                                    //关闭文件，解除占用
        }
    }

    /// <summary>
    /// 删除ini文件中键
    /// </summary>
    /// <param name="section">节名称</param>
    /// <param name="key">键名称</param>
    /// <param name="path">ini文件路径</param>
    public static void IniDelKey(string section,string key, string path)
    {
        WritePrivateProfileString(section, key, null, path);                          //写入
    }

    /// <summary>
    /// 删除ini文件中节
    /// </summary>
    /// <param name="section">节名</param>
    /// <param name="path">ini文件路径</param>
    public static void IniDelSection(string section, string path)
    {
        WritePrivateProfileString(section, null, null, path);                          //写入
    }
}