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- #include<stdio.h>
- void main()
- {
- int y, n, s = 0;//定义变量
- scanf_s("%d-%d", &y, &n);//输入年月
- switch (n)//根据月份判断天数
- {
- case 1:s = 31; break;
- case 2:s = 28; break;
- case 3:s = 31; break;
- case 4:s = 30; break;
- case 5:s = 31; break;
- case 6:s = 30; break;
- case 7:s = 31; break;
- case 8:s = 31; break;
- case 9:s = 30; break;
- case 10:s = 31; break;
- case 11:s = 30; break;
- case 12:s = 31; break;
- }
- if (n == 2)//判断闰年2月差异
- {
- if (y % 4 == 0 && y % 100 != 0 || y % 400 == 0)
- s = 29;
- else
- s = 28;
- }
- printf("%d\n", s);
- }
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