C# 读写ini文件

1.添加引用

using System.IO;
using System.Runtime.InteropServices;

2.声明API函数

     #region  API函数声明
     [DllImport("kernel32")]
     private static extern long WritePrivateProfileString(string section, string key, string val, string filepath);
     [DllImport("kernel32")]
     private static extern long GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filepath);
     #endregion

3.文件读取的方法

     private string ContentValue(string Section, string key, string strFilePath)
     {
         StringBuilder temp = new StringBuilder();
         GetPrivateProfileString(Section, key, "", temp, , strFilePath);
         return temp.ToString();
     }

4.读取文件实例

         private void button1_Click(object sender, EventArgs e)
         {
             string path = Application.StartupPath + @"\配置文件.ini";
             textBox1.Text = ContentValue("Server", "path", path);
             textBox2.Text = ContentValue("Server", "cmd", path);
             textBox3.Text = ContentValue("Client", "path", path);
             textBox4.Text = ContentValue("Client", "cmd", path);
         }

效果图：