C Primer plus 第六版 第二章课后习题答案

C Primer plus 第六版 第二章课后习题答案

第一题

#include <iostream>
using std::cout;
using std::endl;
int main() {
	cout << "BeanGuohui" << endl;
	cout << "成都" << endl;
	getchar();
}

第二题

#include <iostream>
#include <Windows.h>
using std::cin;
using std::cout;
using std::endl;

int main() {
	cout << "请输入一个以long为单位的距离：";
	double distance;
	cin >> distance;
	cout << distance << " long = " << distance * 220 << " 码" << endl;
	system("pause");

}

第三题

#include <iostream>
#include <Windows.h>
using std::cout;
using std::cin;
using std::endl;

void FirstPrint(){
	cout << "Three blind mice" << endl;
}
void SecondPrint() {
	cout << "See how they run" << endl;
}

int main() {
	FirstPrint();
	FirstPrint();
	SecondPrint();
	SecondPrint();
	system("pause");
}

第四题

#include <iostream>
#include <Windows.h>
using std::cout;
using std::cin;
using std::endl;

int main() {
	cout << "Enter your age： ";
	int age = 0;
	cin >> age;
	cout << "该年龄包含" << age * 12 << "个月！" << endl;
	system("pause");

}

第五题

#include <iostream>
#include <Windows.h>
using std::cout;
using std::cin;
using std::endl;

double ChangeTemperature(double CentigradeTemperature) {
	return 1.8 * CentigradeTemperature + 32.0;

}

int main() {
	double CentigradeTemperature = 0;
	cout << "Please enter a Celsius value: ";
	cin >> CentigradeTemperature;

	cout << CentigradeTemperature << " degrees Celeius is " <<
		ChangeTemperature(CentigradeTemperature) << " degrees Fahrenheit." << endl;



	system("pause");

}

第六题

#include <iostream>
#include <Windows.h>
using std::cout;
using std::cin;
using std::endl;

double changeLightYear(double lightYear) {
	return 63240 * lightYear;
}

int main() {
	double lightYear = 0;
	cout << "Enter the number of light years: ";
	cin >> lightYear;

	cout << lightYear << " light year = " <<
		changeLightYear(lightYear) << " astronomical units." << endl;



	system("pause");

}

第七题

#include <iostream>
#include <Windows.h>
using std::cout;
using std::cin;
using std::endl;

void showData(int hour, int minute) {
	cout << "Time: " << hour << ":" << minute << endl;
}

int main() {
	int hour = 0, minute = 0;
	cout << "Enter the number of hours: ";
	cin >> hour;
	cout << "Enter the number of minutes: ";
	cin >> minute;
	showData(hour, minute);

	system("pause");

}