VC++各种数据类型转换

long转成CString

long a;

CString s;

s.Format(_T("%ld"), a);

cstring转为long

CString jub;

long lhwnd = 0;

lhwnd = _ttol(jub);  //把cstring转为long

cstring转为lnt

CString str("1234");

int i= _ttoi(str);

_bstr_t与CString相互转换

_bstr_t bstr;

CString strSql;

CString -> _bstr_t: bstr = (_bstr_t)strSql;

_bstr_t -> CString: strSql = (LPCSTR)bstr;