#include<stdio.h>
#include<conio.h>
void main()
{
     float max,total=0;
     float average;
     int i,n=0;
     
     struct stu
    {
        int num;
        char *name;
        char sex;
        float score;
    }boy[]={
              {101,"li ping",'M',45},
              {102,"zhang ping",'M',62.5},
              {103,"he fang",'F',97.5},
              {104,"cheng ling",'F',87},
              {105,"wang ming",'M',58},
              /*{106,"",'F',0},*/
            };
    max=boy[0].score;
    for(i=0;i<5;i++)
      {
      
        if(max<boy[i+1].score)
        {
            max=boy[i+1].score;
        }
        total+=boy[i].score;
        if(boy[i].score<60)
         {
           n+=1;
         }
       }
    printf("total=%f\n",total);
    printf("average=%f\n",total/5);
    printf("fail=%d\n",n);
    printf("max=%f\n",max);
    getch();
            
}
   在for()中，当i=4时，boy[4+1]不是超出范围了吗？怎么不会出错呢？郁闷啊，
请教

但是当i=4时，boy[i+1]=boy[5]了，但是程序中并没有boy[5]啊~

/*{106,"",'F',0}*/是我自己想加的，觉得加了这段好像就不越界了，对程序又不会有嘛影响