c++程序是否可以在if/else语句中包含switch语句

我正试图在if/else语句中执行switch语句。它不起作用。我不确定这是否是因为我在switch语句中使用的保留词"break"使我退出了函数。请帮忙！！！

    /*  Date : March 3, 2015
    Date Due : March 23, 2015
    Program Name: Hospital Calculator
    Description: This program will ask the user to enter several information 
    related to his/her room floor measurements. After that, it will generate 
    a bill that will tell the customer the price for the carpet job.
    */
  #include <iostream>
  #include <iomanip>
  #include <string>
  #include <cmath>
  #include <cctype>
  //Constants
              // Room Rates
  const float SINGLE_ROOM    = 525.00,
              DOUBLE_ROOM    = 325.00,
              WARD           = 550.00,
              //Phone Access Rates
              SHARED_LINE    = 2.95,
              DEDICATED_LINE = 5.95,
              //Television Rates
              BASIC_CHANNELS = 2.95,
              CABLE_CHANNELS = 5.95;
  using namespace std;
    //Prototypes
  void getdata(string &, int &);
  float get_room ( int,  string &);
  float get_phone(int days, string &);  

  int main()
  {
     string name,
            room_type,
            phone_type,
            tv_type;
     int   days;
    float room_charges,
          phone_charges,
          tv_charges;
    //The ones below are subfuntions calls that devide each section    
  //Input section (call)
    getdata(name,days);
  //room_charges = 
  //room_charges = get_room(days,room_type);
  phone_charges = get_phone(days, phone_type);
  cout << phone_charges << endl;
  cout << phone_type << endl;
  /*tv_charges = get_tv(days, tv_type);
  print(name, days, room_charges, phone_charges, tv_charges);
  */
    cin.get();
    cin.ignore();
    return 0;
  }
  // Input Section
  //This function takes the information needed from the user
  void getdata(string & name, int & days)
  {
    string symbol;
    symbol.assign (50, '*');
    cout << symbol<< endl;
    cout << right << setw(22) << "tCustomer's Namettt: ";
    getline (cin,name);
    cout << right << setw(22) << "tNumber of days in the hospitaltt: ";
    cin >> days;
    cout << symbol << endl; 
    cin.ignore();
  }
  float get_room ( int days, string & room_type)  
  {
      string choice;
      char   ch;
      float  room_charges;
      cout << "nntttRoom Usedn";
      cout <<     "ttt________nn";
      cout << fixed << setprecision (2);
      cout << "t1- Single room-One bed t"<< SINGLE_ROOM <<"nn";
      cout << "t2- Double room-Two bedst"<< DOUBLE_ROOM <<"nn";
      cout << "t3- Ward                t"<< WARD <<"nn";
      cout << "t   Enter Choice 1, 2, or 3 : ";
      getline(cin, choice); 
      cin.ignore();
      ch = toupper(choice[0]);
      if (ch == '1' or ch == 'S')
         { 
            room_charges = SINGLE_ROOM * days;
            room_type    = "in a Single Room";
         }
      else if (ch == '2' or ch == 'D')
        { 
            room_charges = DOUBLE_ROOM * days;
            room_type    = "in a Double Room";
         }
      else if (ch == '3' or ch == 'W')
        {
            room_charges = WARD * days;
            room_type    = "in a Ward";
        }

      return room_charges;
  }
   float get_phone(int days, string & phone_type)
  {  
      string prompt,
             choice;
      char   pr, ch;
      float  phone_charges;
      cout << "Would you like Phone Access (Y/N): ";
      cin >> prompt;
      pr = toupper(prompt[0]);
      if (pr == 'Y') 
      {
          cout << "nntttPhone Accessn";
          cout <<     "ttt________nn";
          cout << "t1- Shared   t" << SHARED_LINE <<"nn";
          cout << "t2- Dedicatedt"<< DEDICATED_LINE <<"nn";
          cout << "t   Enter Choice 1 or 2: ";
          getline(cin, choice); 
          ch = toupper(choice[0]);
          if (ch == '1' or ch == 'S')
           { 
               phone_charges = (SHARED_LINE * days);
               phone_type    = "(Shared)";
           else if (ch == '2' or ch == 'D')     
             case '2':
             case 'D':        
              {
               phone_charges = (DEDICATED_LINE * days);
               phone_type    = "(Cable)";
               break;
              }  

           }

      }    
        else if (pr == 'N')
        {
          phone_charges = 0.00;
          phone_type = "None";
        }
         cin.ignore();
          return phone_charges;  
     }