详解C#如何实现读写ini文件详解C#如何实现读写ini文件

介绍
1.创建一个ini文件
2.创建一个winform界面
3.添加一个ini管理类
4.添加winform代码

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

文章图片

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{/// /// 获取值/// /// 段落名/// 键名/// 读取异常是的缺省值/// 键名所对应的的值，没有找到返回空值/// 返回值允许的大小/// ini文件的完整路径/// [DllImport("kernel32.dll")]private static extern int GetPrivateProfileString(string section,string key,string defval,StringBuilder retval,int size,string filepath); /// /// 写入/// /// 需要写入的段落名/// 需要写入的键名/// 写入值/// ini文件的完整路径/// [DllImport("kernel32.dll")]private static extern int WritePrivateProfileString(string section,string key,string val,string filepath); /// /// 获取数据/// /// 段落名/// 键名/// 没有找到时返回的默认值/// ini文件完整路径/// 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(); } /// /// 写入数据/// /// 段落名/// 键名/// 写入值/// ini文件完整路径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"; } /// /// 读取/// /// /// 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; } /// /// 写入/// /// /// 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); } /// /// 清空/// /// /// 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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