/*
PROGRAM: Ch6_14.cpp
Written by Corey Starbird
This program calculates the balance
owed to a hospital for a patient.
Last modified: 10/28/13
*/
#include <iostream>
#include <fstream>
#include <iomanip>
#include <string>
using namespace std;
// Prototypes for In-patient and Out-patient functions.
double stayTotal (int, double, double, double); // For In-patients
double stayTotal (double, double); // For Out-patients
int main()
{
char patientType; // In-patient (I or i) or Out-patient (O or o)
double rate, // Daily rate for the In-patient stay
servCharge, // Service charge for the stay
medCharge, // Medication charge for the stay
inTotal, // Total for the In-patient stay
outTotal; // Total for the Out-patient stay
int days; // Number of days for the In-patient stay
// Find out if they were an In-patient or an Out-patient
cout << "Welcome, please enter (I) for an In-patient or (O) for an Out-patient:" << endl;
cin >> patientType;
while (patientType != 'I' || 'i' || 'O' || 'o')
{
cout << "Invalid entry. Please enter either (I) for an In-patient or (O) for an Out-patient:" << endl;
cin >> patientType;
}
cout << "FIN";
return 0;
}
嘿，这里是 C++ 的新手。我正在做一个项目，但我无法弄清楚为什么我的验证patientType无法正常工作。我首先有双引号，但意识到这将表示字符串。我将它们更改为单引号，我的程序现在将编译并运行，但是无论我输入什么，I，i，O，o 或其他任何内容，while 循环都会运行。
我不知道为什么 while 循环不检查条件，看到我确实输入了条件中的一个字符，然后继续进行 cout。可能是一个简单的错误，但我提前谢谢你。