C++將基本語義重構爲目標類

Question

我有這個簡單的程序計算四種不同的工人類型的工資。它的語義寫法，但我想重構它，所以我可以讓每個工人類型是它自己的類。

該程序的主要控制在switch語句中。我想要做的是爲每個工人類型創建一個類，然後使用適當的setter和getters來執行正確的計算。

payroll.cpp

#include <iostream> 
#include <iomanip> 
using namespace std; 

// Function Prototype 
void userPrompt (void); 

int main() 
{ 
// declare paycode and salary 
int paycode; 
double salary; 

// run user prompt function, input paycode 
userPrompt(); 
cin >> paycode; 

while(paycode != -1) { 

    //switch statement to handle user input 
    switch(paycode) { 

     case 1: // manager 
      cout << "Manager Selected." << endl; 
      cout << "Enter Weekly Salary: "; 
      // calculate manager's salary 
      cin >> salary; 
      cout << "Manager's pay is $" << std::fixed << setprecision(2) << salary << "\n" << endl; 
      break; 

     case 2: // hourly worker 
      double wage; 
      int hours; 
      cout << "Hourly worker Selected." << endl; 
      cout << "Enter the hourly salary: "; 
      cin >> wage; 
      cout << "Enter the total hours worked: "; 
      cin >> hours; 
      // calculate hourly worker's pay 
      // with respect to possible overtime 
      if (hours <= 40) 
       salary = hours * wage; 
      else 
       salary = 40.0 * wage + (hours - 40) * wage * 1.5; 
      cout << "Hourly worker's pay is $" << std::fixed << setprecision(2) << salary << "\n" << endl; 
      break; 

     case 3: // commission worker 
      int sales; 
      cout << "Commission Worker Selected." << endl; 
      cout << "Enter gross weekly sales: "; 
      cin >> sales; 
      // calculate commission worker's pay 
      salary = sales * 0.092 + 250; 
      cout << "Commission worker's pay is $" << std::fixed << setprecision(2) << salary << "\n" << endl; 
      break; 

     case 4: // widget worker 
      int widgets, wagePerWidget; 
      cout << "Widget Worker Selected." << endl; 
      cout << "Enter number of pieces: "; 
      cin >> widgets; 
      cout << "Enter wage per piece: "; 
      cin >> wagePerWidget; 
      // calculate widget worker's pay 
      salary = widgets * wagePerWidget; 
      cout << "Widget Worker's pay is $" << std::fixed << setprecision(2) << salary << "\n" << endl; 
      break; 
    } 

    // prompt user to input paycode again or exit 
    cout<< "Enter paycode (-1 to end): "; 
    cin >> paycode; 
} 

exit (0); 
} 

// userPrompt function declaration 
void userPrompt (void) 
{ 
// prompt user to input paycode 
cout << "Enter paycode (-1 to end): "; 

} 

Answer 1

，如果你需要學習OOP的基本原則請查閱C++類設計的一些教程。 如果你經過一番研究後可以回答你自己的問題，你將學到更多東西。

• http://www.tenouk.com/cplusplustutorial.html
• http://www.cpp-tips.net/Simple_class_example
• MIT OCW 6.088 Intro to C/C++
• YouTube上有一些很好的資源太