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853天前// 使用一个CDate转换操作符转换成一个整数 |
#include <iostream> |
class CDate { |
private: |
int m_nDay; // Range: 1 - 30 (lets assume all months have 30 days!) |
int m_nMonth; // Range: 1 - 12 |
int m_nYear; |
public: |
// Constructor that initializes the object to a day, month and year |
CDate(int nDay, int nMonth, int nYear) : |
m_nDay(nDay), m_nMonth(nMonth), m_nYear(nYear) { |
} |
; |
// Convert date object into an integer. |
operator int() { |
return ((m_nYear * 10000) + (m_nMonth * 100) + m_nDay); |
} |
void DisplayDate() { |
std::cout << m_nDay << " / " << m_nMonth << " / " << m_nYear; |
} |
}; |
int main() { |
// Instantiate and initialize a date object to 25 May 2008 |
CDate mDate(25, 6, 2008); |
std::cout << "The date object is initialized to: "; |
// Display initial date |
mDate.DisplayDate(); |
std::cout << std::endl; |
// Get the integer equivalent of the date |
int nDate = mDate; |
std::cout << "The integer equivalent of the date is: " << nDate; |
return 0; |
} |
