GetPrivateProfileInt 讀取配置文件

#include<iostream>
#include<afxwin.h>
using namespace std;
void main()
{
	char buffer[1024]={0};
	GetModuleFileName(GetModuleHandle(NULL),   buffer,   sizeof(buffer));
	//GetModuleFileName:Retrieves the fully qualified path for the file that contains the specified module. The module must have been loaded by the current process.
	CString wFileName = CString(buffer);
	CString ROOTPATH = wFileName.Left(wFileName.ReverseFind('\\'));
	CStdioFile f;
	if(f.Open(ROOTPATH + "\\config.ini",CFile::modeCreate|CFile::modeNoTruncate|CFile::modeWrite))
	{
		if(f.GetLength()==0)
		{
			f.WriteString("[config]\n");
			f.WriteString("key=100");
		}
		f.Close();
	}
	CString rFileName = ROOTPATH + "\\config.ini";
	UINT theKey = GetPrivateProfileInt("config", "key", 2, rFileName);//第三個參數：The default value to return if the key name cannot be found in the initialization file.
	//GetPrivateProfileInt:Retrieves an integer associated with a key in the specified section of an initialization file.
	cout<<"theKey:"<<theKey<<endl;
	system("pause");
}