SSD5答案exercise1-4答案

#include "Date.h" #include <iostream> #include <string> Date::Date():year(0),month(0),day(0),hour(0),minute(0),second(0) {} Date::Date(int month, int day, int year, int hour, int minute, int second) :year(year),month(month),day(day),hour(hour),minute(minute),second(second) {} void Date::setYear(int& year) { this->year = year; } void Date::setMonth(int& month) { this->month = month; } void Date::setDay(int& day) { this->day = day; } void Date::setHour(int& hour) { this->hour = hour; } void Date::setMinute(int& minute) { this->minute = minute; } void Date::setSecond(int& second) { this->second = second; } int Date::getYear() const { return year; } int Date::getDay() const { return day; } int Date::getMonth() const { return month; } int Date::getHour() const { return hour; } int Date::getMinute() const { return minute; } int Date::getSecond() const { return second; } bool Date::operator ==(const Date &rhs) { if (this->year == rhs.getYear() && this->month == rhs.getMonth() && this->day == rhs.getDay() && this->hour == rhs.getHour() && this->minute == rhs.getMinute() && this->second == rhs.getSecond()) return true; else return false; } bool Date::operator <(const Date &rhs) { if (this->year < rhs.getYear()) return true; else if (this->year > rhs.getYear()) return false; else { if (this->month < rhs.getMonth()) return true; else if (this->month > rhs.getMonth()) return false; else { if (this->day < rhs.getDay()) return true; else if (this->day > rhs.getDay()) return false; else { if (this->hour < rhs.getHour()) return true; else if (this->hour > rhs.getHour()) return false; else { if (this->minute < rhs.getMinute()) return true; else if (this->minute > rhs.getMinute()) return false; else { if (this->second < rhs.getSecond()) return true; else return false; } } } } } } ostream &operator<<(ostream& os, const Date& date) { os << date.getMonth() << "/" << date.getDay() << "/" << date.getYear() << " " << date.getHour() << ":" << date.getMinute() << ":" << date.getSecond(); return os; } istream &operator>>(istream& is, Date& date) { string str; is >> str; string::size_type pos1,pos2,pos3; pos1 = str.find_first_of("/"); pos2 = str.find_last_of("/"); pos3 = str.find_first_of(" "); int month = atoi(str.substr(0,pos1).c_str()); int day = atoi(str.substr(pos1 + 1,pos2).c_str()); int year = atoi(str.substr(pos2 + 1,pos3).c_str()); is >> str; pos1 = str.find_first_of(":"); pos2 = str.find_last_of(":"); pos3 = str.find_last_of(" \n"); int hour = atoi(str.substr(0,pos1).c_str()); int minute = atoi(str.substr(pos1 + 1,pos2).c_str()); int second = atoi(str.substr(pos2 + 1,pos3).c_str()); date.setYear(year); date.setMonth(month); date.setDay(day); date.setHour(hour); date.setMinute(minute); date.setSecond(second); return is; }