C# 使用动态库DllImport("kernel32")读写ini文件的步骤

UINT WINAPI GetPrivateProfileInt
(
_In_LPCTSTR lpAppName, //ini文件中区块名称
_In_LPCTSTR lpKeyName, //键名
_In_INT nDefault, //默认值
_In_LPCTSTR lpFileName //ini文件路径
);

UINT WINAPI GetPrivateProfileString
(
_In_LPCTSTR lpAppName, //ini文件中区块名称
_In_LPCTSTR lpKeyName, //键名
_In_INT nDefault, //默认值
_In_LPSTR lpReturnedString,//接受ini文件中值的CString对象，指定一个字符串缓冲区，长度至少为nSize
_In_DWORD nSize,//指定装载到IpReturnedString缓冲区的最大字符数
_In_LPCTSTR lpFileName //ini文件路径
);

BOOL WritePrivateProfileString(
LPCTSTR lpAppName,//ini文件中区块名
LPCTSTR lpKeyName,//键名
LPCTSTR lpString,//键值
LPCTSTR lpFileName
);

using System.IO;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows;
namespace WpfApplication3
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            IniClass ini = new IniClass();
            string IniPath = System.Windows.Forms.Application.StartupPath + "\\temp.ini";//引用里添加form才可以
            string section = "BigBang";
            ini.SetPath(IniPath);
            ini.IniWriteValue(section, "1", "Amy");
            ini.IniWriteValue(section, "2", "Sheldon");
            string section1 = "Family";
            ini.SetPath(IniPath);
            ini.IniWriteValue(section1, "1", "Phil");
            ini.IniWriteValue(section1, "2", "Jay");
            string re = ini.IniReadValue(section, "1");
            System.Windows.MessageBox.Show(re);
        }
    }
    public class IniClass
    {
        [DllImport("kernel32")]
        private static extern long WritePrivateProfileString(string section, string key,
           string value, string filepath);
        [DllImport("kernel32")]
        private static extern long GetPrivateProfileString(string section, string key,
            string def, StringBuilder retVal, int size, string filePath);
        private string iniPath;
        public void SetPath(string iniPath)
        {
            this.iniPath = iniPath;
        }
        public void IniWriteValue(string section, string key, string value)
        {
            WritePrivateProfileString(section, key, value, this.iniPath);
        }
        public string IniReadValue(string section, string key)
        {
            StringBuilder temp = new StringBuilder(500);
            GetPrivateProfileString(section, key, "", temp, 500, iniPath);
            return temp.ToString();
        }
        public bool ExistFile()
        {
            return File.Exists(this.iniPath);
        }
    }
}