万年历实现类代码,C代码库,德仔网

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【C】万年历实现类

作者:纳兰清风 / 发布于2013/2/17/ 493

#ifndef CALENDAR_H_INCLUDED
#define CALENDAR_H_INCLUDED

#include <string>
#include <iostream>
#include <iomanip>
using std::string;
class Calendar{
	protected:
		int year;
		int month;
		int day;
		int week;
	public:
		static int mon[13];
		static string EngMon[13];
	protected:
		void getWeekDay();
	public:
		Calendar();
		Calendar(int y,int m=1,int d=1);
		bool isLeapYear(int y) const;
		void printYear();
		void printMonth();
		void printWeek();
		void setYear(int y);
		int getYear() const;
		void setMonth(int m);
		int getMonth() const;
		void setDay(int d);
		int getDay() const;
		void setWeek(int w);
		string getWeek() const;
};
int Calendar::mon[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
string Calendar::EngMon[13]={" ","Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
Calendar::Calendar(){
	week=0;
}
Calendar::Calendar(int y,int m,int d){
	setYear(y);
	setMonth(m);
	setDay(d);
	week=0;
}
bool Calendar::isLeapYear(int y) const{
	return (y%4==0&&y%100!=0)||(y%400==0);
}
void Calendar::printYear(){
	Calendar c(this->getYear());
	for(int i=1;i<13;i++){
		c.setMonth(i);
		c.printMonth();
	}
}
void Calendar::printMonth(){
	getWeekDay();
	int w=(week-(day-1)%7+7)%7;
	std::cout<<"     "<<year<<"  "<<EngMon[month]<<"    "<<std::endl;
	std::cout<<"Sun Mon Tue Wed Thu Fri Sat"<<std::endl;
	for(int i=0;i<w;i++){
		std::cout<<"    ";
	}
	if(isLeapYear(year)){
		mon[2]=29;
	}else{
		mon[2]=28;
	}
	for(int d=1;d<mon[month]+1;d++){
		std::cout<<std::setw(3)<<d<<" ";
		if(w==6)
			std::cout<<std::endl;
		w=(w+1)%7;
	}
	std::cout<<std::endl;
}
void Calendar::printWeek(){
	getWeekDay();
	std::cout<<getWeek()<<std::endl;
}
void Calendar::getWeekDay(){
	int sumDay=0;
	for(int i=1900;i<year;i++){
		if(isLeapYear(i)){
			sumDay+=366;
		} else {
			sumDay+=365;
		}
	}
	if(isLeapYear(year)){
		mon[2]=29;
	}
	for(int j=1;j<month;j++){
		sumDay+=mon[j];
	}
	sumDay+=day;
	week=sumDay%7;
}
void Calendar::setYear(int y){
	if(y<1900)
		y=1900;
	year=y;
}
int Calendar::getYear() const{
	return year;
}
void Calendar::setMonth(int m){
	if(m<1)
		m=1;
	if(m>12)
		m=12;
	month=m;
}
int Calendar::getMonth() const{
	return month;
}
void Calendar::setDay(int d){
	if(d<1)
		d=1;
	day=d;
}
int Calendar::getDay() const{
	return day;
}
void Calendar::setWeek(int w){
	week=w;
}
string Calendar::getWeek() const{
	string w[7]={"Sun","Mon","Tue","Wen","Thu","Fri","Sat"};
	return w[week];
}

#endif // CALENDAR_H_INCLUDED









//测试函数
void test(){
	int year,month,day;
	Calendar cal;
	while(1){
		std::cout<<"1.print the year calendar"<<std::endl;
		std::cout<<"2.print the year month calendar"<<std::endl;
		std::cout<<"3.print the weekday of year month day"<<std::endl;
		std::cout<<"4.exit"<<std::endl;
		char temp[2]={'\0'};
		std::cin>>temp;
		switch(temp[0]){
		case '1':
		{
			std::cout<<"please input the year usage yyyy(>1900):"<<std::endl;
			std::cin>>year;
			cal.setYear(year);
			cal.printYear();
			break;
		}
		case '2':
		{
			std::cout<<"please input the year usage yyyy(>1900) mm(1~12):"<<std::endl;
			std::cin>>year>>month;
			cal.setYear(year);
			cal.setMonth(month);
			cal.printMonth();
			break;
		}
		case '3':
		{
			std::cout<<"please input the year usage yyyy(>=1900) mm(1~12) dd:"<<std::endl;
			std::cin>>year>>month>>day;
			cal.setYear(year);
			cal.setMonth(month);
			cal.setDay(day);
			cal.printWeek();
			break;
		}
		case '4':
		{
			exit(0);
			break;
		}
		default:
			break;
		}
	}
}

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