C#如何实现读写ini文件

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本文转载自:https://www.jb51.net/article/235534.htm

一.c#读写Ini操作类

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;
 
namespace Test1

   public static class IniFunc
    
        /// <summary>
        /// 获取值
        /// </summary>
        /// <param name="section">段落名</param>
        /// <param name="key">键名</param>
        /// <param name="defval">读取异常是的缺省值</param>
        /// <param name="retval">键名所对应的的值,没有找到返回空值</param>
        /// <param name="size">返回值允许的大小</param>
        /// <param name="filepath">ini文件的完整路径</param>
        /// <returns></returns>
        [DllImport("kernel32.dll")]
        private static extern int GetPrivateProfileString(
            string section,
            string key,
            string defval,
            StringBuilder retval,
            int size,
            string filepath);
 
        /// <summary>
        /// 写入
        /// </summary>
        /// <param name="section">需要写入的段落名</param>
        /// <param name="key">需要写入的键名</param>
        /// <param name="val">写入值</param>
        /// <param name="filepath">ini文件的完整路径</param>
        /// <returns></returns>
        [DllImport("kernel32.dll")]
        private static extern int WritePrivateProfileString(
            string section,
            string key,
            string val,
            string filepath);
 
 
        /// <summary>
        /// 获取数据
        /// </summary>
        /// <param name="section">段落名</param>
        /// <param name="key">键名</param>
        /// <param name="def">没有找到时返回的默认值</param>
        /// <param name="filename">ini文件完整路径</param>
        /// <returns></returns>
        public static string getString(string section, string key, string def, string filename)
        
            StringBuilder sb = new StringBuilder(1024);
            GetPrivateProfileString(section, key, def, sb, 1024, filename);
            return sb.ToString();
        
 
        /// <summary>
        /// 写入数据
        /// </summary>
        /// <param name="section">段落名</param>
        /// <param name="key">键名</param>
        /// <param name="val">写入值</param>
        /// <param name="filename">ini文件完整路径</param>
        public static void writeString(string section, string key, string val, string filename)
        
            WritePrivateProfileString(section, key, val, filename);
        
    

二.winform中试用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
 
namespace Test1

    public partial class Form1 : Form
    
        public Form1()
        
            InitializeComponent();
        
 
        private string filename = null;
 
        private void Form1_Load(object sender, EventArgs e)
        
            filename = Application.StartupPath + "\\\\Config.ini";
        
 
        /// <summary>
        /// 读取
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Button_Read_Click(object sender, EventArgs e)
        
            string names = IniFunc.getString("Information", "Name", null, filename);
            string gender = IniFunc.getString("Information", "Gender", null, filename);
            string age = IniFunc.getString("Information", "Age", null, filename);
            string region = IniFunc.getString("Information", "Region", null, filename);
 
            TextBox_Name.Text = names;
            TextBox_Gender.Text = gender;
            TextBox_Age.Text = age;
            TextBox_Region.Text = region;
        
 
        /// <summary>
        /// 写入
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Button_Write_Click(object sender, EventArgs e)
        
            string names = TextBox_Name.Text;
            string gender = TextBox_Gender.Text;
            string age = TextBox_Age.Text;
            string region = TextBox_Region.Text;
 
            IniFunc.writeString("Information", "Name", names, filename);
            IniFunc.writeString("Information", "Gender", gender, filename);
            IniFunc.writeString("Information", "Age", age, filename);
            IniFunc.writeString("Information", "Region", region, filename);
        
 
        /// <summary>
        /// 清空
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Button_Clear_Click(object sender, EventArgs e)
        
            TextBox_Name.Text = string.Empty;
            TextBox_Gender.Text = string.Empty;
            TextBox_Age.Text = string.Empty;
            TextBox_Region.Text = string.Empty;
        
    

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