c++ 多字节编码显示string

void CTeacher::Show()
{
	string str;
	char s[256];
	sprintf_s(s, "age is %d", age);
	str = "name is " + name + " age is " + s;
	MessageBoxA(NULL, str.c_str(), _T("中国"), MB_OK);//多字节编码
}