C# ini文件操作帮助类

public class IniConfigHelper
{
// 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;


        public IniConfigHelper(string path)
        {
            this.sPath = path;
        }

        /// <summary>
        ///  section=配置节，key=键名，value=键值，path=路径  
        /// </summary>
        /// <param name="section"></param>
        /// <param name="key"></param>
        /// <param name="value"></param>
        public void Write(string section, string key, string value)
        {
            // section=配置节，key=键名，value=键值，path=路径  

            WritePrivateProfileString(section, key, value, sPath);
        }
        

        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，读取该键名的值最大长度，path=路径
            GetPrivateProfileString(section, key, "", temp, 255, sPath);
            return temp.ToString();
        }

    }