0
當我運行程序並選擇溢價它運行它把它然後它也運行常規服務的功能。這個問題在整個問題上處於主要地位。我做錯了什麼？ IT說我沒有足夠清楚地解釋這個問題，不知道爲什麼這裏有更多的文字來解決這個問題。開關和功能
premiumserv = premserv(daymin, nightmin);
regularserv = regserv();
下面
/************************************************/
/* Author: Sam LaManna */
/* Course: CSC 135 Lisa Frye */
/* Assignment: Program 3 Cell Phone Bill */
/* Due Date: 10/20/2011 */
/* Filename: program3.cpp */
/* Purpose: This program calculates and */
/* prints the bill for a cellular */
/* telephone company */
/************************************************/
//TODO:
//Fix account number issue: large numbers cause intfinte loop. Maybe use string?
//Complete premium and regular service calculation functions
//Output function - Figure out how to print
#include <iostream> //Basic input/output
#include <iomanip> //Manipulators
using namespace std;
void instruct(); //Function declaration for printing instructions
int accnum(); //Function declaration for account number
char servcode(); //Function declaration for service code
float regserv(); //Function declaration for regular service
float premserv (int& daymin, int& nightmin); //Function declaration for premium service
void output (float premiumserv, float regularserv); //Function declaration for printing results
int main()
{
int accountnum = 0; //Var for account number
char servicecode = 'a'; //Var for service code
float premiumserv = 0; //Var for premium service total
float regularserv = 0; //Var for regular service total
int daymin = 0;
int nightmin = 0;
instruct(); //Function call to print instructions
accountnum = accnum(); //Function call to input account number
servicecode = servcode(); //Function call to get service code
switch(servicecode) //Switch to determine which calc to use
{
case 'r':
break;
case 'R':
regserv();
break;
case 'p':
break;
case 'P':
premserv (daymin, nightmin);
break;
}
premiumserv = premserv (daymin, nightmin); //Function call for regular service
regularserv = regserv(); //Function call for premium service
cout <<"total" << premiumserv <<"day" << daymin << "night " << nightmin;
return 0;
}
/************************************************/
/* Name: instruct */
/* Description: Prints instructions to user */
/* Parameters: N/A */
/* Return Value: N/A */
/************************************************/
void instruct()
{
cout << "\n" << "This program will calculate the cellular telephone bill for a given customer when " << "\n"
<< "given the correct inputs. ";
//Prints instructions to user
return;
}
/************************************************/
/* Name: accnum */
/* Description: Get user account number */
/* Parameters: N/A */
/* Return Value: accnum */
/************************************************/
int accnum()
{
int accnum = 0; //Define var for account number
char accyn = 'n'; //Define char for user verify
int i = 1; //Define var for sentinel loop
do {
cout << "\n" << "\n" << "Please enter your account number: ";
cin >> accnum;
while ((accnum < 0) && (i<3))
{
cout << "\n" << "Error - invalid number, please try again.";
cout << "\n" << "Please enter your account number: ";
cin >> accnum;
i++;
if (i == 3)
{
cout << "\n" << "Too many invalid attempts, program terminating." << "\n"
<< "Have a nice day. " << "\n" << "\n";
exit (0);
} //end if
} //end while
cout << "\n";
cout << "Your account number is: " << accnum << "\n"
<< "Is this correct? [y/n] ";
cin >> accyn;
} while (accyn != 'y'); //end do/while loop
return accnum;
}
/************************************************/
/* Name: servcode */
/* Description: Get service type */
/* Parameters: N/A */
/* Return Value: servcode */
/************************************************/
char servcode()
{
char servcode = 'a'; //Define var for service code
char serviceyn = 'n'; //Define var for user verify
int i = 1; //Define var for sentinel loop
do {
cout << "\n" << "Please enter your service code, [R]egular or [P]remium:" << "\n";
cin >> servcode;
while ((servcode != 'R' && servcode != 'P' && servcode != 'r' && servcode != 'p') && (i < 3))
{
cout << "\n" << "Error - invalid service code, please try again. ";
cout << "\n" << "Please enter your service code: ";
cin >> servcode;
i++;
if (i == 3)
{
cout << "\n" << "Too many invalid attempts, program terminating." << "\n"
<< "Have a nice day. " << "\n" << "\n";
exit (0);
} //end if
} //end while
cout << "\n" << "You entered: " << servcode << "\n"
<< "Is that correct? [y,n]";
cin >> serviceyn;
} while (serviceyn != 'y'); // end do/while loop
return servcode;
}
/************************************************/
/* Name: regserv */
/* Description: Calculations for regular serv */
/* Parameters: N/A */
/* Return Value: regserv */
/************************************************/
float regserv()
{
int regmin = 0; //Var for number of minutes used
float regserv = 0; //Var for cost for regular service
cout << "\n" "Please enter the minutes used: " << "\n";
cin >> regmin;
regserv = (regmin - 50) * 0.2 + 10;
return regserv;
}
/************************************************/
/* Name: premserv */
/* Description: Calculations for premium serv */
/* Parameters: N/A */
/* Return Value: premserv */
/************************************************/
float premserv (int& daymin, int& nightmin)
{
float daytotal = 0; //Var for day total
float nighttotal = 0; //Var for night total
float premserv = 0; //Var for premium service cost
cout << "\n" << "Please enter the number of minutes used durring the day (6AM - 6PM): " << "\n";
cin >> daymin;
cout << "\n" << "Please enter the number of minutes used durring the night (6PM - 6AM): " << "\n";
cin >> nightmin;
daytotal = (daymin - 75) * 0.1;
nighttotal = (nightmin - 100) * 0.05;
premserv = 25 + daytotal + nighttotal;
return premserv;
}
IT是正確的...... – Nate
怎麼這麼，我列出了問題，我認爲這個問題是。我還包括完整的代碼。那裏還有什麼？ –
作爲一個方面說明，我假設你想讓'P'和'p'運行高級服務，'R'和'r'運行常規服務。這是你想要的嗎？因爲現在如果你輸入'r'或'p'它不起作用，它會到達'break'並立即退出。你想要的是刪除該中斷，如下所示： case'r'： case'R'： regserv（）; case'p'： case'P'： premserv（daymin，nightmin）; –