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发表于 2013-12-8 10:05:19
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显示全部楼层
#include <stdio.h>
void main()
{
int a[12]={31,28,31,30,31,30,31,31,30,31,30,31};
int year=0;
int mon=0;
int day=0;
int sum=0;
int i=0;
printf("请输入日期:格式为1900,8,15,……\n");
scanf("%d,%d,%d\n",&year,&mon,&day);
switch (mon)
{
case 1:
{
printf("%d年%d月%d日是%d年的第%d天!\n",year,mon,day,year,day);
break;
}
case 2:
{
sum=31+day;
printf("%d年%d月%d日是%d年的第%d天!\n",year,mon,day,year,sum);
break;
}
case 3:
case 4:
case 5:
case 6:
case 7:
case 8:
case 9:
case 10:
case 11:
case 12:
{
for (i=1;i<mon;i++)//此处i!=mon,相等时取得是该月的总天数
{
sum+=a[i-1];
}
sum+=day;
if (year%4==0&&year%100>0||year%400==0)
{
printf("%d年%d月%d日是%d年的第%d天!\n",year,mon,day,year,sum+1);
}
else
{
printf("%d年%d月%d日是%d年的第%d天!\n",year,mon,day,year,sum);
}
break;
}
}
兄弟,这是我自己写的代码,你可以参考下!
我的思路是:
1.如果输入的是一月份,直接输出day
2.如果输入的是二月份,直接输出31+day
3.如果输入的是三到十二月份,mon-1个月相加再加上day。再判断是否是闰年,是的话结果再加1天。
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