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C# 讀寫ini文件操作實(shí)現(xiàn)

更新時間：2025年01月21日 11:47:50 作者：Love樸啾啾

本文主要介紹了C# 讀寫ini文件操作實(shí)現(xiàn),文中通過示例代碼介紹的非常詳細(xì),對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值,需要的朋友們下面隨著小編來一起學(xué)習(xí)學(xué)習(xí)吧

一、INI文件結(jié)構(gòu)

INI文件結(jié)構(gòu)簡單，由節(jié)（Sections）和鍵值對（Key-Value Pairs）組成。每個節(jié)由方括號包圍，例如[SectionName]，而鍵值對則是以等號=分隔的字符串，例如Key=Value。每個節(jié)都包含一個或多個鍵值對，用于存儲相關(guān)的配置信息。

INI文件示例：

[AmplifierForm] 
ResInitialize=0.5,0.7,0.5,0.6,0.6

[OffSignalForm] 
ResInitialize=0.5,0.7,0.5,0.6,0.6
ResColl=1.3,1.5

該示例中有兩個節(jié)：AmplifierForm、OffSignalForm，每個節(jié)下都有一些鍵值對，用于存儲配置信息。

二、讀取INI文件中的數(shù)據(jù)

C#命名空間中沒有直接讀寫INI的類，但在"kernel32.dll"文件中有Win32的API函數(shù)–WritePrivateProfileString()和GetPrivateProfileString()，可操作ini文件。

靜態(tài)操作使用類

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace FileOperationsDemo
{
    public class ReadWriteINI
    {
        #region API函數(shù)聲明

        /// <summary>
        /// 寫入ini文件
        /// </summary>
        /// <param name="section">節(jié)點(diǎn)名稱</param>
        /// <param name="key">鍵</param>
        /// <param name="val">值</param>
        /// <param name="filePath">ini路徑</param>
        /// <returns>0失敗/其他成功</returns>
        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
        /// <summary>
        /// 
        /// </summary>
        /// <param name="section">節(jié)點(diǎn)名稱，[]內(nèi)的段落名</param>
        /// <param name="key">鍵</param>
        /// <param name="def">值(未讀取到數(shù)據(jù)時設(shè)置的默認(rèn)返回值)</param>
        /// 對應(yīng)API函數(shù)的def參數(shù)，它的值由用戶指定，是當(dāng)在配置文件中沒有找到具體的Value時，就用def的值來代替?？梢詾榭?
        /// <param name="retVal">讀取到的結(jié)果值</param>
        /// <param name="size">讀取緩沖區(qū)大小</param>
        /// <param name="filePath">ini配置文件的路徑加ini文件名</param>
        /// <returns>讀取到的字節(jié)數(shù)量</returns>
        [DllImport("kernel32")]
        private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
        #endregion

        /// <summary>
        /// 寫INI,添加新節(jié)點(diǎn)、鍵值，及編輯修改鍵對應(yīng)的值
        /// </summary>
        /// <param name="in_filename">ini配置文件的路徑加ini文件名</param>
        /// <param name="Section">節(jié)點(diǎn)名稱，[]內(nèi)的段落名</param>
        /// <param name="Key">鍵</param>
        /// <param name="Value">值</param>
        public static bool IniFile_SetVal(string in_filename, string Section, string Key, string Value)
        {
            if (File.Exists(in_filename))
            {
                // 調(diào)用winapi函數(shù)將Key=Value寫入Section節(jié)點(diǎn)下
                long len = WritePrivateProfileString(Section, Key, Value, in_filename);
                if (len == 0)
                {
                    return false;
                }
                else
                {
                    return true;
                }
            }
            else
            {
                return true;
            }
        }
        /// <summary>
        /// 讀ini
        /// </summary>
        /// <param name="in_filename">ini配置文件的路徑加ini文件名</param>
        /// <param name="Section">節(jié)點(diǎn)名稱，[]內(nèi)的段落名</param>
        /// <param name="Key">鍵</param>
        /// <returns></returns>
        public static string IniFile_GetVal(string in_filename, string Section, string Key)
        {
            if (File.Exists(in_filename))
            {
                // 聲明接收的數(shù)據(jù)
                StringBuilder builder = new StringBuilder(1024);
                // 調(diào)用winapi函數(shù)讀取Section節(jié)點(diǎn)下Key的值
                int len = GetPrivateProfileString(Section, Key, "", builder, 1024, in_filename);
                if (len == 0)
                    return "1";
                else
                    return (builder.ToString());
            }
            else
                return string.Empty;
        }
    }
}

操作示例

        /// <summary>
        /// 讀取ini文件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button3_Click(object sender, EventArgs e)
        {
            string pathName = Application.StartupPath + "\\config\\ResOriginal.ini";
            string resStarter = ReadWriteINI.IniFile_GetVal(pathName, "SelfCheckFace", "ResInitialize");
            string[] resInitLine = resStarter.Split(',');
            for (int ii = 0; ii < resInitLine.Length; ii++)
            {
                richTextBox2.AppendText(resInitLine[ii] + "\n");
            }
        }
        /// <summary>
        /// 寫入ini文件，新建或編輯
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button4_Click(object sender, EventArgs e)
        {
            string pathName = Application.StartupPath + "\\config\\ResOriginal.ini";
            ReadWriteINI.IniFile_SetVal(pathName, "SelfCheckFace", "ResInitialize", "1,2,3,4,5");
            
            string[] resInitLine = richTextBox2.Lines;
            string tempWrite = string.Join(",", resInitLine);
            tempWrite=tempWrite.Remove(tempWrite.Length-1);
            ReadWriteINI.IniFile_SetVal(pathName, "SelfCheckF", "ResInitialize", tempWrite);
        }

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