配置文件读写操作（.ini）

来源：互联网发布：小米5网络制式编辑：程序博客网时间：2024/05/04 17:59
使用C#实现对配置文件（config.ini）的读写操作；
以下为基本操作函数源码，包括不同数据类型参数的读写：string、bool、int、double
using System;using System.Collections.Generic;using System.Linq;using System.Windows.Forms;using System.IO;using System.Runtime.InteropServices;using System.Text;public class FileIni    {        [DllImport("kernel32.dll")]        public static extern IntPtr _lopen(string lpPathName, int iReadWrite);        [DllImport("kernel32.dll")]        public static extern bool CloseHandle(IntPtr hObject);        public const int OF_READWRITE = 2;        public const int OF_SHARE_DENY_NONE = 0x40;        public static readonly IntPtr HFILE_ERROR = new IntPtr(-1);        //判断文件是否被占用 占用=true 未占用 = false        public static bool isFileOccupied(string path)        {            if (!File.Exists(path))                return true;            IntPtr vHandle = _lopen(path, OF_READWRITE | OF_SHARE_DENY_NONE);            if (vHandle == HFILE_ERROR)                return true;            CloseHandle(vHandle);            return false;        }        [DllImport("kernel32")]        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);        [DllImport("kernel32")]        private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);        [DllImport("kernel32")]        private static extern int GetPrivateProfileInt(string section, string key, int def, string filePath);        public static bool isFileExists(string path)        {            if (!(File.Exists(path)))            {                MessageBox.Show("文件:" + path + "不存在", "ini文件不存在");                return false;            }            return true;        }        //=====================//=====================//=====================Write data        #region  写INI参数        public static void WriteString(string path, string section, string key, string value)        {            // section=配置节，key=键名，value=键值，path=路径            WritePrivateProfileString(section, key, value, path);        }        public static void WriteInt(string path, string section, string key, int value = 0)        {            string strRead = ReadString(path, section, key);            string[] strArr = strRead.Split(new char[] { ';' });            string strNote = ";";            string strWrite;            if (strArr.Length > 1)//保留原有注释            {                for (int i = 1; i < strArr.Length; i++)                    strNote += strArr[i];                strWrite = value.ToString() + strNote;            }            else            {                strWrite = value.ToString();            }            WritePrivateProfileString(section, key, strWrite, path);        }        public static void WriteDouble(string path, string section, string key, double value = 0)        {            string strRead = ReadString(path, section, key);            string[] strArr = strRead.Split(new char[] { ';' });            string strNote = ";";            string strWrite;            if (strArr.Length > 1)//保留原有注释            {                for (int i = 1; i < strArr.Length; i++)                    strNote += strArr[i];                strWrite = value.ToString() + strNote;            }            else            {                strWrite = value.ToString();            }            WritePrivateProfileString(section, key, strWrite, path);        }        public static void WriteBool(string path, string section, string key, bool value = false)        {            string strValue = (value ? "1" : "0");            string strRead = ReadString(path, section, key);            string[] strArr = strRead.Split(new char[] { ';' });            string strNote = ";";            string strWrite;            if (strArr.Length > 1)//保留原有注释            {                for (int i = 1; i < strArr.Length; i++)                    strNote += strArr[i];                strWrite = strValue + strNote;            }            else            {                strWrite = strValue;            }            WritePrivateProfileString(section, key, strWrite, path);        }        #endregion        //=====================//=====================//=====================Read data        #region  读INI参数        public static string ReadString(string path, 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, path);            String str = temp.ToString();            string[] strArr = str.Split(new char[] { ';' });            string strRead = "";            if (strArr.Length > 0)            {                strRead = strArr[0];            }            return strRead;        }        public static int ReadInt(string path, string section, string key, int defValue = 0)        {            return GetPrivateProfileInt(section, key, defValue, path);        }        public static double ReadDouble(string path, string section, string key, double defValue = 0)        {            System.Text.StringBuilder temp = new System.Text.StringBuilder(255);            GetPrivateProfileString(section, key, defValue.ToString(), temp, 255, path);            String str = temp.ToString();            string[] strArr = str.Split(new char[] { ';' });            double ReData;            if (strArr.Length > 0)            {                ReData = Convert.ToDouble(strArr[0]);            }            else            {                ReData = defValue;            }            return ReData;        }        public static bool ReadBool(string path, string section, string key, int defValue = 0)        {            int val = GetPrivateProfileInt(section, key, defValue, path);            if (val != 0)                return true;            else                return false;        }        #endregion    }
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