#include
int main(int argc, constchar * argv[])
{
int year=0,month=0,day=0,result=0;
printf（＂请输入年份：（年月日之间用逗号隔开）＂）；
scanf(＂%d,%d,%d＂,&year,&month,&day);
if(year/400||((year/4)&(!(year/100)))){
printf（＂这一年是闰年，＂）；
switch (month) {
case1:
result=day;break;
case 2:
result=31+day;break;
case3:
result=31+29+day;break;
case4:
result=31+29+31+day;break;
case5:
result=31+29+31+30+day;break;
case6:
result=31+29+31+30+31+day;break;
case7:
result=31+29+31+30+31+30+day;break;
case8:
result=31+29+31+30+31+30+31+day;break;
case9:
result=31+29+31+30+31+30+31+31+day;break;
case10:
result=31+29+31+30+31+30+31+31+30+day;break;
case11:
result=31+29+31+30+31+30+31+31+30+31+day;break;
case12:
result=31+29+31+30+31+30+31+31+30+31+30+day;break;
default:
break;
}
}
else{
printf（＂这一年不是闰年。＂）；
switch (month) {
case1:
result=day;break;
case 2:
result=31+day;break;
case3:
result=31+30+day;break;
case4:
result=31+30+31+day;break;
case5:
result=31+30+31+30+day;break;
case6:
result=31+30+31+30+31+day;break;
case7:
result=31+30+31+30+31+30+day;break;
case8:
result=31+30+31+30+31+30+31+day;break;
case9:
result=31+30+31+30+31+30+31+31+day;break;
case10:
result=31+30+31+30+31+30+31+31+30+day;break;
case11:
result=31+30+31+30+31+30+31+31+30+31+day;break;
case12:
result=31+30+31+30+31+30+31+31+30+31+30+day;break;
default:
break;
}
}
printf（＂这一天是这一年的第%d天！\n＂,result）;
return0;
}
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