/*预约医生某时间段*/
public string MakeAppointment(string userID, string password, string doctorID, DateTime? date) {
UserService userService = new UserService();
UserInfo userInfo = userService.Login(userID, password);
if (userInfo.ErrorMessage == null) {
return userService.MakeAppointment(doctorID, date);
}
else {
return userInfo.ErrorMessage;
}
}
