#include <iostream.h> #include <stdlib.h>//Global variable int days[13] = {0,31,28,31,30,31,30,31,31,30,31,30,31};//days of month char *Week[7] = {"Sunday","Monday","Tuesday","Wednesday","Thurday","Friday","Saturday"}; //Weekclass Date{//class defination public:void SetDate(int,int,int);// initializationint IsLeapyear(int ); //Leap year or notint Week_day(int); //Week_dayvoid Show(); //days number private:int year,month,day; };void Date::SetDate(int y,int m,int d) {year = y;month = m;day = d;if(year <= 0 || month <= 0 || day <= 0 || month > 12|| day > days[month]) //Date validity check{cout<<"The Date is invalid!"<<endl;exit(0);} }int Date::IsLeapyear(int y) {return y % 4 == 0 && y % 100 != 0 || y % 400 == 0; }int Date::Week_day(int flag)//flag 0:week 1:day_num; {long sum = 0;int i;if(flag == 0)i = 1;elsei = year;for(;i < year;i++){if(IsLeapyear(i))sum += 366;elsesum += 365;}for(int j = 1;j < month;j++)sum += days[j];if(month > 2 && IsLeapyear(year))sum++;sum += day;if(flag == 0)return sum % 7;return sum; };void Date::Show() {cout<<"The Date is:"<<year<<"-"<<month<<"-"<<day<<endl;cout<<"It’s "<<*(Week+Week_day(0))<<endl;cout<<"It’s "<<Week_day(1)<<" days of this year!"<<endl; }void main() {Date D;int y,m,d;cout<<"Please input the Date:"<<endl;cin>>y>>m>>d;D.SetDate(y,m,d);D.Show(); }
版权声明：本文为博主原创文章，未经博主允许不得转载。
，对于旅行，从来都记忆模糊。记不得都去了哪些地方，
