慕桂英1453556
2020-07-16 23:42
#include <stdio.h>
int main()
{
/* 定义需要计算的日期 */
int year = 2008;
int month = 8;
int day = 8;
int sum;
switch(month)
case 12:
sum+=30;
case 11:
sum+=31;
case 10:
sum+=30;
case 9:
sum+=31;
case 8:
sum+=31;
case 7:
sum+=30;
case 6:
sum+=31;
case 5:
sum+=30;
case 4:
sum+=31;
case 3:
if(year % 4 == 0 && year % 100 != 0) || year & 400 == 0)
{
sum+=29;
}
else
{
sum+=28;
}
case 2:
sum+=31;
case 1:
sum+=day;
break;
default:
printf("输入日期有误、\n");
break;
printf("sum=%d\n",sum)
return 0;
}
然后就是每个case语句下面要加个break;
switch(month)的下面要加个大括号
C语言入门
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