C#创建ini文件、读取值、修改值

调用方法：

int iBaudRate = InIHelper.ReadConfig(“COM_SETUP”, “波特率”)

InIHelper类：

public class InIHelper    {        private static string FileName = Application.StartupPath + "\\AppConfig.ini";        /// <summary>        /// 读取配置文件        /// </summary>        ///         ///         ///         ///         public static T ReadConfig(string section, string key)        {            if (File.Exists(FileName))            {                IniFile f = new IniFile(FileName);                string value = f.ReadContentValue(section, key);                 if (String.IsNullOrWhiteSpace(value))                    return default(T);                 if (typeof(T).IsEnum)                    return (T)Enum.Parse(typeof(T), value, true);                 return (T)Convert.ChangeType(value, typeof(T));            }            else            {                return default(T);            }        }         /// <summary>      <span>本文来源gaodai#ma#com搞*!代#%^码$网*</span>  /// 写配置文件        /// </summary>        ///         ///         ///         public static void WriteConfig(string section, string key, string value)        {            //如果文件不存在，则创建            if (!File.Exists(FileName))            {                using (FileStream myFs = new FileStream(FileName, FileMode.Create)) { }            }             IniFile f = new IniFile(FileName);            f.WriteContentValue(section, key, value);        }    }

核心代码：

public class IniFile    {        public string Path;         public IniFile(string path)        {            this.Path = path;        }         /// <summary>        /// 写入INI文件        /// </summary>        /// 节点名称[如[TypeName]]        /// 键        /// 值        /// 文件路径        ///         [DllImport("kernel32")]        private static extern long WritePrivateProfileString(string section, string key, string val, string filepath);         /// <summary>        /// 读取INI文件        /// </summary>        /// 节点名称        /// 键        /// 值        /// stringbulider对象        /// 字节大小        /// 文件路径        ///         [DllImport("kernel32")]        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);         /// <summary>        /// 写入        /// </summary>        ///         ///         ///         public void WriteContentValue(string section, string key, string iValue)        {            WritePrivateProfileString(section, key, iValue, this.Path);        }         /// <summary>        /// 读取INI文件中的内容方法        /// </summary>        /// 键        /// 值        ///         public string ReadContentValue(string Section, string key)        {            StringBuilder temp = new StringBuilder(1024);            GetPrivateProfileString(Section, key, "", temp, 1024, this.Path);            return temp.ToString();        }    }

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