分离C++程序例子

分离C++程序

• 完整程序

用两个class实现加法运算的程序

#include
using namespace std;

class Adder {
	int op1, op2;
public:
	Adder(int a, int b);
	int process();
};

Adder::Adder(int a, int b) {
	op1 = a; op2 = b;
}

int Adder::process() {
	return op1 + op2;
}

class Calculator {
public:
	void run();
};

void Calculator::run() {
	int a, b;
	cout << "Input two number >> ";
	cin >> a >> b;
	Adder adder(a, b);
	cout << adder.process();
}

int main() {
	Calculator calc;
	calc.run();
}

进行分离

#ifndef ADDER_H
#define ADDER_H

class Adder {
	int op1, op2;
public:
	Adder(int a, int b);
	int process();
};

#endif

#ifndef CALCULATOR_H
#define CALCULATOR_H

class Calculator {
public:
	void run();
};

#endif // !CALCULATOR_H

#include "Adder.h"

Adder::Adder(int a, int b) {
	op1 = a; op2 = b;
}

int Adder::process() {
	return op1 + op2;
}

#include
using namespace std;

#include "Calculator.h"
#include "Adder.h"

void Calculator::run() {
	int a, b;
	cout << "Input two number >> ";
	cin >> a >> b;
	Adder adder(a, b);
	cout << adder.process();
}

#include "Calculator.h"

int main() {
	Calculator calc;
	calc.run();
}

分离完毕