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改过来的你对比一下 #include"stdio.h"int dobb(int);int date(int,int,int);int dobb(int year){ if((year%4==0 && year%100!=0)|| (year%400==0))return(1); else return(0);}int date(int year,int month,int day){ int leap,cn=0,sum; leap=dobb(year); switch(month-1) { case 11:cn+=30;case 10:cn+=31;case 9:cn+=30;case 8:cn+=31;case 7:cn+=31;case 6:cn+=30;case 5:cn+=31;case 4:cn+=30;case 3:cn+=31;case 2:if(leap) cn+=29;else cn+=28; case 1:cn+=31; default:cn+=day;}sum=year-1+(year-1)/4-(year-1)/100+(year-1)/400+cn; return(sum);}void main(){ int year , month, day,sum; printf("请输入查询的日期：\n"); scanf("%d%d%d",&year,&month,&day); int dobb(int year); int date(int year,int month,int day); sum=date(year,month,day); switch(sum%7) { case 0: printf("是周日\n");break;case 1: printf("是周一\n");break; case 2: printf("是周二\n");break; case 3: printf("是周三\n");break; case 4: printf("是周四\n");break; case 5: printf("是周五\n");break; case 6: printf("是周六\n");break; }} |
