用结构体指针实现动态录入并对其中一项求平均值

头文件 

#ifndef HERO_H_INCLUDED
#define HERO_H_INCLUDED

typedef struct _pubTime{
    int year;
    int month;
    int day;
}PubTime;

typedef struct _hero{
    char * name;
    char sex;
    char *job;
    int life;   //英雄生命
    double speed;  //攻击速度
    char *ability;//英雄特殊能力
    PubTime pubTime; //上线时间
}Hero;

void Input();

void ShowAvg();

void Show();

#endif // HERO_H_INCLUDED

#include"Hero.h"
#include<stdio.h>

Hero heros[100] = {
    {"引流蜘蛛接",'m',"刺客",579,0.64,"位移",{2018,9,8}},
     {"情色仙女",'f',"法师",480,0.64,"减速",{2018,8,8}},
      {"接风建好",'m',"战士",509,0.67,"护盾",{2018,9,6}}
};

int count = 3;  //当前的英雄的总数

void Input()
{
    //首先录入内容
    //第一个录入完毕后  询问是否继续录入
    char answer = 'y';
    do{
            if(count == 100)
            {
                printf("英雄的栏位已满，请购买！");
                break;
            }
        printf("当前录入第%d位的英雄信息：",count +1);
        printf("英雄名称:");
        heros[count].name = (char *)malloc(50);
        scanf("%s",heros[count].name);
        printf("性别:");
        fflush(stdin);
        heros[count].sex = getchar();
        fflush(stdin);
        printf("职业:");
        heros[count].job = (char *)malloc(50);
        scanf("%s",heros[count].job);
        fflush(stdin);
        heros[count].life  = 1000;
        heros[count].speed = 0.644;
        heros[count].ability = "上天入地";
        heros[count].pubTime.year = 2016;
        heros[count].pubTime.month = 8;
        heros[count].pubTime.day = 3;

       count++;
       printf("是否继续录入?(y/n)\n");
       answer = getch();  //用户输入键后就立即触发
    }while(answer == 'y' || answer == 'Y');
}
void ShowAvg()
{
    int lifeOfSum = 0;
    double avg = 0;
    int i;
    for(i=0;i<count;i++)
    {
        lifeOfSum += (heros + i)->life;
    }
    //计算平均值
    avg = lifeOfSum*1.0 / count;
    printf("生命值的平均值为:%.3lf\n",avg);
}
void show()
{
    //计算结构数组的大小
   // int len = sizeof(heros)/sizeof(Hero);
    //printf("结构数组的元素个数:%d",len);
   // printf("请输入英雄的名称:");
    //heros[0].name = (char *)malloc(50);
   // scanf("%s",heros[0].name);
    int i;
    printf("\n");
    for(i=0;i<count;i++)
    {
        printf("%s\t%s\t%d-%d-%d\n",(heros+i)->name,
               heros[i].job,heros[i].pubTime.year,heros[i].pubTime.month,heros[i].pubTime.day);
    }

}

#include <stdio.h>
#include <stdlib.h>
#include"Hero.h"
extern Hero heros[100];

int main()
{
    Input();

    show();
    ShowAvg();
    return 0;
}