MFC CString to string

CString path=_T("C:/");
string a = string(CW2A(path.GetString()))

一、string转CString

string str = "hello world";
CString cstr(str.c_str());

二、CString转string

CString theCStr = L"Hello C++";
std::string STDStr(CW2A(theCStr.GetString()));