【个人使用.Net类库】（1）INI配置文件操作类

开发接口程序时，对于接口程序配置的ip地址、端口等都需要是可配置的，而在Win Api原生实现了INI文件的读写操作，因此只需要调用Win Api中的方法即可操作INI配置文件，关键代码就是如何调用Win Api中的方法，如下所示：

#region 调用WinApi 原方法声明        [DllImport("kernel32")]        PRivate static extern long 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);        [DllImport("kernel32")]        private static extern int GetPrivateProfileString(string section, string key, string defVal, Byte[] retVal, int size, string filePath);#endregion

具体代码如下所示（删除段落内容是参考苏飞论坛苏飞大神的）：

using System;using System.Text;using System.Runtime.InteropServices;namespace DotNetCommon.File{        /// <summary>    /// 类说明：INI文件读写类    /// 编码人：鞠小军    /// 联系方式：binghuojxj@QQ.com    /// </summary>    public class IniFileHelper    {        /// <summary>        /// INI文件路径        /// </summary>        public string Path;        /// <summary>        /// 屏蔽空的构造函数        /// </summary>        public IniFileHelper()        {            throw new Exception("不允许使用空的构造函数!");        }        /// <summary>        /// 构造函数,参数为INI文件路径         /// </summary>        /// <param name="path">INI文件的路径</param>        public IniFileHelper(string path)        {            Path = path;        }        #region 调用WinApi 原方法声明        [DllImport("kernel32")]        private static extern long 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);        [DllImport("kernel32")]        private static extern int GetPrivateProfileString(string section, string key, string defVal, Byte[] retVal, int size, string filePath);        #endregion        /// <summary>        /// 读取INI文件        /// </summary>        /// <param name="section">段落</param>        /// <param name="key">键</param>        /// <returns></returns>        public string IniReadValue(string section, string key)        {            var temp = new StringBuilder(255);            var i = GetPrivateProfileString(section, key, "", temp, 255, Path);            return temp.ToString();        }        /// <summary>        /// 写入INI文件        /// </summary>        /// <param name="section">段落</param>        /// <param name="key">键</param>        /// <param name="value">值</param>        public void IniWriteValue(string section, string key, string value)        {            WritePrivateProfileString(section, key, value, Path);        }        /// <summary>        /// 清楚INI文件中所有的段落        /// </summary>        public void ClearAllSection()        {            IniWriteValue(null, null, null);        }        /// <summary>        /// 清楚INI文件中指定段落内容        /// </summary>        /// <param name="section">段落</param>        public void ClearSection(string section)        {            IniWriteValue(section, null, null);        }    }}