string--->CString
#ifdef UNICODE
#define Tstring wstring
#else
#define Tstring string
#endif
可以这样转换
CString str=CString(string.c_str())
const char*----->LPCWSTR
const char *str;
CString temp = str；
LPCWSTR app = (LPCWSTR)(temp.AllocSysString());
wstring ----->LPCWSTR
wstring stemp;
LPCWSTR result = stemp.c_str();