技术备份整理

1:小数点位数不能超过2
double dPrice = 5.677f;
stringstream streamPrice;  
streamPrice << fixed << setprecision(2) << dPrice;  
string strPrice = streamPrice.str();

2:int转string
stringstream stringStream;  
stringStream << (int)uId;  
string strId = stringStream.str();

3:CString转string
CString strNumber;
String sNumber = “12345”;
strNumber = T2A(sNumber);

4:判断字串是否是A,B,a,b
CString strNormal = _T("A,B,");
CString strPutIn = _T("a");
BOOL bFind = -1 != strNormal.Find(strPutIn.MakeUpper()+_T(","));

5:获取当前时间
COleDateTime oleToday = COleDateTime::GetCurrentTime();
CString strDate = oleToday.Format(_T("%Y-%m-%d"));		//日期
CString strTime = oleToday.Format(_T("%H:%M:%S"));		//时间

6：wstring转int,wstring转枚举
wstring strNum = "123";
int nNum = _ttoi(strNum.c_str());
EM_NUMBER emNumber = (EM_NUMBER)_ttoi(strNum.c_str());

7：递归遍历文件夹下的文件
void OnCheckFileExist(CString strPath)
{
	if (strPath.IsEmpty())
	{
		return;
	}

	CFileFind fileFinder;
	strPath.Append(_T("\\*.*")); //所有文件都列出
	BOOL bRet = fileFinder.FindFile(strPath);
	while(bRet)
	{
		bRet = fileFinder.FindNextFile();
		if(fileFinder.IsDirectory() || fileFinder.IsDots())//递归 文件夹或 .或..
		{
			continue;
		}

		CString strFileName = fileFinder.GetFileName();//找到文件，输出文件名；
		CString strFileExt = ::PathFindExtension(strFileName);//获取文件后缀（文件类型）
		strFileExt.MakeLower();
        CString strReNameFile = strFileName + _T(“123”);
        MoveFile(strFileName ,strReNameFile);//重命名
	}
}

8:弹出选择文件夹对话框
BOOL OnBrowseFile()
{
	//浏览文件夹
	TCHAR szBuffer[MAX_PATH] = {0};   
	BROWSEINFO bi;   
	ZeroMemory(&bi,sizeof(BROWSEINFO));   
	bi.hwndOwner = NULL;   
	bi.pszDisplayName = szBuffer;   
	bi.lpszTitle = _T("请选择文件夹:");   
	bi.ulFlags = BIF_DONTGOBELOWDOMAIN | BIF_RETURNONLYFSDIRS | BIF_NEWDIALOGSTYLE ; 
	LPITEMIDLIST idl = SHBrowseForFolder(&bi);   
	if (NULL == idl)   
	{   
		return FALSE;   
	}   
	SHGetPathFromIDList(idl,szBuffer);
	OnVaildFolder(szBuffer);
	return TRUE;
}

9:获取当前执行程序所在目录
  TCHAR szPath[260] = {0};
  GetModuleFileName(GetModuleHandle(NULL), szPath, MAX_PATH);
  CString strPath(szPath);
  strPath = strPath.Left(strPath.ReverseFind('\\'));