详解C#如何实现读写ini文件
更新时间:2022年01月23日 17:14:48 作者:熊思雨
.ini 文件是Initialization File的缩写,即初始化文件,是windows的系统配置文件所采用的存储格式,统管windows的各项配置。本文将介绍C#读写ini文件的方法,需要的可以参考一下
介绍
INI文件格式由节、键、值组成。
节
[section]
参数
(键=值)
name=value
1.创建一个ini文件
在Debug目录下创建一个ini文件,写入下面内容,注意编码格式用ANSI。
[Information]
Name=周星星
Gender=男
Age=55
Region=香港
2.创建一个winform界面
如下图
3.添加一个ini管理类
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); } } }
4.添加winform代码
双击winform界面,加入下面代码
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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