Question

C语言的题

Answer 1

问：C语言的题

问：两道改错题

答：您好，亲，第一题这里有几个错误:①p定义为struct person* 类型,应为struct person 类型。②访问struct 成员时用 . 号,而不是 -> 号。③i的起始值应为0,终止值应为2。修改后的代码:

答：#include struct person { char name[20]; int age; }some[]={{"张立",20},{"杨帆",21},{"马小林",18}};int main(){ int i; struct person p; for(i=0;i<3;i++) { if( p.age < some[i].age) p = some[i]; } printf("%s \n%d\n",p.name,p.age ); return 0; }

答：第二题这里有几个错误:scanf时应传入date作为参数,而不是&date。day_tab 数组下标应从1开始。if 条件判断应包括 month=2 的情况。修改后的代码:

答：#includestruct dateType { int year; int month; int day; };int days( struct dateType );int main() { struct dateType date; printf("Please input Y,M,D\n"); scanf("%d,%d,%d", &date.year, &date.month,&date.day); printf("\n%d -%d - %d is the %d days\n", date.year, date.month, date.day, days(date)); return 0; } int days( struct dateType Mydate) { int i, day_sum = 0; int day_tab[13] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31,30, 31}; for(i = 1; i < Mydate.month; i++) day_sum += day_tab[i]; day_sum += Mydate.day; if(((Mydate.year % 4 == 0 && Mydate.year % 100 != 0) || Mydate.year % 400 == 0) && (Mydate.month == 2)) day_sum += 1; return day_sum; }