1 import java.util.*;
2 public class work_1 {
3
4 public static void main(String[] args) {
5 System.out.println("请输入年份");
6 Scanner a=new Scanner(System.in);
7 int year=a.nextInt();
8 System.out.println("请输入月份");
9 Scanner b=new Scanner(System.in);
10 int month=b.nextInt();
11 int sum = 0;
12 int x;
13 if(year%4==0&&year%100!=0||year%400==0) {//判断是否为闰年
14 System.out.println("该年为闰年，有366天");
15 switch(month) {
16 case 1:
17 sum=0;
18 break;
19 case 2:
20 sum=32;
21 break;
22 case 3:
23 sum=60;
24 break;
25 case 4:
26 sum=91;
27 break;
28 case 5:
29 sum=121;
30 break;
31 case 6:
32 sum=152;
33 break;
34 case 7:
35 sum=182;
36 break;
37 case 8:
38 sum=213;
39 break;
40 case 9:
41 sum=244;
42 break;
43 case 10:
44 sum=274;
45 break;
46 case 11:
47 sum=305;
48 break;
49 case 12:
50 sum=335;
51 break;
52 }
53 }else {
54 System.out.println("该年不为闰年，有365天");
55 switch(month) {
56 case 1:
57 sum=0;
58 break;
59 case 2:
60 sum=31;
61 break;
62 case 3:
63 sum=59;
64 break;
65 case 4:
66 sum=90;
67 break;
68 case 5:
69 sum=120;
70 break;
71 case 6:
72 sum=151;
73 break;
74 case 7:
75 sum=181;
76 break;
77 case 8:
78 sum=212;
79 break;
80 case 9:
81 sum=243;
82 break;
83 case 10:
84 sum=273;
85 break;
86 case 11:
87 sum=304;
88 break;
89 case 12:
90 sum=334;
91 break;
92 }
93 }
94 System.out.println("请输入日子");
95 int day=a.nextInt();
96 x=sum+day;
97 System.out.println("该日子为这一年的第"+x+"天");
98 }
99
100 }
