1 #include <iostream>
2 bool is_leap(int year)//判断闰年
3 {
4 if (year % 100 == 0)
5 {
6 if (year % 400 == 0)
7 return true;
8 else
9 return false;
10 }
11 else
12 {
13 if (year % 4 == 0)
14 {
15 return true;
16 }
17 else
18 {
19 return false;
20 }
21 }
22 }
23 using namespace std;
24 class date
25 {
26 public:
27 date(int y, int m, int d) :year(y), month(m), day(d) {};
28 date() {};
29 ~date() {};
30 void show()
31 {
32 cout << year << "/" << month << "/" << day << " ";
33 }
34 public:
35 int year;
36 int month;
37 int day;
38 };
39 int get_days(class date d)
40 {
41 int days = 0;
42 for (int i = 1935; i < d.year; i++)
43 {
44 if (is_leap(i))
45 days += 366;
46 else
47 days += 365;
48 }
49 for (int i = 1; i < d.month; i++)
50 {
51 if (i == 1 || i == 3 || i == 5 || i == 7 || i == 8 || i == 10 || i == 12)
52 days += 31;
53 else if (i == 4 || i == 6 || i == 9 || i == 11)
54 days += 30;
55 else
56 {
57 if (is_leap(d.year))
58 days += 29;
59 else
60 days += 28;
61 }
62 }
63 days += d.day;
64 return days;
65 }
66 void cmp_date(class date d1, class date d2)
67 {
68 int days1 = get_days(d1);
69 int days2 = get_days(d2);
70 int diff = days1 - days2;
71 {
72 if (diff == 0)
73 {
74 d1.show();
75 cout << "与";
76 d2.show();
77 cout << "是同一天" << endl;;
78 }
79 else if (diff > 0)
80 {
81 d1.show();
82 cout << "比";
83 d2.show();
84 cout << "晚" << diff << "天" << endl;;
85 }
86 else
87 {
88 diff = -diff;
89 d1.show();
90 cout << "比";
91 d2.show();
92 cout << "早" << diff << "天" << endl;;
93 }
94 }
95 }
96 int main()
97 {
98 while (1)
99 {
100 int y, m, d;
101 cout << "输入第一个日期年/月/日：";
102 cin >> y >> m >> d;
103 class date d1(y, m, d);
104 cout << "输入第二个日期年/月/日：";
105 cin >> y >> m >> d;
106 class date d2(y, m, d);
107 cmp_date(d1, d2);
108 cout << endl;
109 }
110 return 0;
111 }
