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INIHelper

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System;using System.IO;using System.Runtime.InteropServices;using System.Text; namespace ConsoleApplication1{    public class UIHelper    {        /// <summary>        /// 读写INI文件的类。        /// </summary>        // 读写INI文件相关。        [DllImport("kernel32.dll", EntryPoint = "WritePrivateProfileString", CharSet = CharSet.Ansi)]        public static extern long WritePrivateProfileString(string section, string key, string val, string filePath);        [DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileString", CharSet = CharSet.Ansi)]        public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);        [DllImport("kernel32.dll", EntryPoint = "GetPrivateProfileSectionNames", CharSet = CharSet.Ansi)]        public static extern int GetPrivateProfileSectionNames(IntPtr lpszReturnBuffer, int nSize, string filePath);        [DllImport("KERNEL32.DLL ", EntryPoint = "GetPrivateProfileSection", CharSet = CharSet.Ansi)]        public static extern int GetPrivateProfileSection(string lpAppName, byte[] lpReturnedString, int nSize, string filePath);        /// <summary>        /// 向INI写入数据。        /// </summary>        /// <PARAM name="Section">节点名。</PARAM>        /// <PARAM name="Key">键名。</PARAM>        /// <PARAM name="Value">值名。</PARAM>        public static void Write(string Section, string Key, string Value, string path)        {            WritePrivateProfileString(Section, Key, Value, path);        }        /// <summary>        /// 读取INI数据。        /// </summary>        /// <PARAM name="Section">节点名。</PARAM>        /// <PARAM name="Key">键名。</PARAM>        /// <PARAM name="Path">值名。</PARAM>        /// <returns>相应的值。</returns>        public static string Read(string Section, string Key, string path)        {            StringBuilder temp = new StringBuilder(255);            int i = GetPrivateProfileString(Section, Key, "", temp, 255, path);            return temp.ToString();        }        /// <summary>        /// 读取一个ini里面所有的节        /// </summary>        /// <param name="sections"></param>        /// <param name="path"></param>        /// <returns></returns>        public static int GetAllSectionNames(out string[] sections, string path)        {            int MAX_BUFFER = 32767;            IntPtr pReturnedString = Marshal.AllocCoTaskMem(MAX_BUFFER);            int bytesReturned = GetPrivateProfileSectionNames(pReturnedString, MAX_BUFFER, path);            if (bytesReturned == 0)            {                sections = null;                return -1;            }            string local = Marshal.PtrToStringAnsi(pReturnedString, (int)bytesReturned).ToString();            Marshal.FreeCoTaskMem(pReturnedString);            //use of Substring below removes terminating null for split            sections = local.Substring(0, local.Length - 1).Split(\0);            return 0;        }        /// <summary>        /// 得到某个节点下面所有的key和value组合        /// </summary>        /// <param name="section"></param>        /// <param name="keys"></param>        /// <param name="values"></param>        /// <param name="path"></param>        /// <returns></returns>        public static int GetAllKeyValues(string section, out string[] keys, out string[] values, string path)        {            byte[] b = new byte[65535];            GetPrivateProfileSection(section, b, b.Length, path);            string s = System.Text.Encoding.Default.GetString(b);            string[] tmp = s.Split((char)0);            ArrayList result = new ArrayList();            foreach (string r in tmp)            {                if (r != string.Empty)                    result.Add(r);            }            keys = new string[result.Count];            values = new string[result.Count];            for (int i = 0; i < result.Count; i++)            {                string[] item = result[i].ToString().Split(new char[] { = });                if (item.Length == 2)                {                    keys[i] = item[0].Trim();                    values[i] = item[1].Trim();                }                else if (item.Length == 1)                {                    keys[i] = item[0].Trim();                    values[i] = "";                }                else if (item.Length == 0)                {                    keys[i] = "";                    values[i] = "";                }            }            return 0;        }    }}