Ini文件操作类

    /// <summary>
    /// Ini文件操作类
    /// </summary>
    public class Ini
    {
        // 声明INI文件的写操作函数 WritePrivateProfileString()
        [System.Runtime.InteropServices.DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);

        // 声明INI文件的读操作函数 GetPrivateProfileString()
        [System.Runtime.InteropServices.DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string def, System.Text.StringBuilder retVal, int size, string filePath);

        private string sPath = null;
        /// <summary>
        /// Ini文件的完整路径
        /// </summary>
        /// <param name="path"></param>
        public Ini(string path)
        {
            this.sPath = path;
        }

        /// <summary>
        /// 向ini文件内写入
        /// </summary>
        /// <param name="section">配置节点名</param>
        /// <param name="key">键名</param>
        /// <param name="value">键值</param>
        public void Writue(string section, string key, string value)
        {
            // section=配置节，key=键名，value=键值，path=路径
            WritePrivateProfileString(section, key, value, sPath);
        }

        /// <summary>
        /// 读取ini文件制定节点的值
        /// </summary>
        /// <param name="section">配置节点名</param>
        /// <param name="key">键值</param>
        /// <returns>值</returns>
        public string ReadValue(string section, string key)
        {
            // 每次从ini中读取多少字节
            System.Text.StringBuilder temp = new System.Text.StringBuilder(255);
            // section=配置节，key=键名，temp=上面，path=路径
            GetPrivateProfileString(section, key, "", temp, 255, sPath);
            return temp.ToString();
        }
    }