C的问题

提问者：风怒剑专  |  浏览 次  |  提问时间：2017-01-13  |  回答数量：3

#include<stdio.h>main(){int day,month,year,sum,leap;printf(\"Please input year,month,day\\n\");scanf(\"%d,%d,%d\",&year,&month,&day);switch(month){ case 1:sum=0;break;case 2:sum=31;break;case 3:sum=59;break;case 4:sum=90;break;case 5:sum=120;break;case 6:sum=151;break;case 7:sum=181;break;case 8:sum=212;break;case 9:sum=243;break;case 10:sum=273;break;case 11:sum=304;break;case 12:sum=334;break;define:printf(\"date error\");}sum=sum+day;if(year%400==0||(year%4==0&&year