/*查询处方单在特定药房的花费，供User调用。*/
public PrescriptionCost GetPrescriptionCost(string userID, string password, string sPrescriptionID, string pharmacyID) {
UserService userService = new UserService();
UserInfo userInfo = userService.Login(userID, password);
if (userInfo.ErrorMessage == null) {
return userService.GetPrescriptionCost(sPrescriptionID, pharmacyID);
}
else {
PrescriptionCost prescriptionCost = new PrescriptionCost();
prescriptionCost.ErrorMessage = userInfo.ErrorMessage;
return prescriptionCost;
}
}
