Question

我有这个简单的程序，可以计算四种不同工人类型的工资。它是在语义上编写的，但我想重构它，所以我可以让每个工作者类型都是它自己的类。

程序的主要控制在switch语句中。我想做的是为每个工人类型创建一个类，然后使用适当的setter和getter，执行正确的计算。

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

如果您需要了解OOP的基础知识，请查看一些c ++类设计教程。如果你能在一些研究后回答你自己的问题，你会学到更多。

http://www.tenouk.com/cplusplustutorial.html
http://www.cpp-tips.net/Simple_class_example
MIT OCW 6.088 Intro to C/C++
Youtube也有一些很好的资源

C ++将基本语义重构为Objective类

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