用C结构体实现一个线性表一些基础准备

• 实验环境win7操作系统下vs2017
• 定义结构体用于存放教练信息

struct mycoach
{
    char name[60];
    int age;
    char skills[60];
};

• 定义线性表存放教练信息

struct seqlist
{
    struct mycoach* mch[10];//这里要用指针，否则操作系统将无法得知分配多少内存，
    int length;
    int lastid;
};

• 赋值测试，确保可以对线性表的每一元素顺利赋值

void main()
{
    struct seqlist* slist;
    slist = (struct seqlist*)malloc(sizeof(struct seqlist));
    slist->mch[0] = (struct mycoach*)malloc(sizeof(struct mycoach));
    strcpy(slist->mch[0]->name, "陈培昌");
    slist->mch[0]->age = 22;
    strcpy(slist->mch[0]->skills,"泰拳，散打");
    printf("姓名：%s
", slist->mch[0]->name);
    printf("年龄：%d
", slist->mch[0]->age);
    printf("武技：%s
", slist->mch[0]->skills);
　　 //及时释放内存空间是必要的
    free(slist->mch[0]);
    slist->mch[0] = NULL;
    free(slist);
    slist =NULL;
    system("pause");
}

输出结果：

• 封装过的一个版本

#define _CRT_SECURE_NO_WARNINGS
#define maxsize 1024
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
struct mycoach
{
    char name[60];
    int age;
    char skills[60];
};

struct seqlist
{
    struct mycoach* mch[maxsize];
    int length;
    int lastid;
};

int initlist(struct seqlist * l)
{
    int  length,j=0;
    printf("初始化，准备输入几个档案信息
");
    scanf("%d",&length);
    for (j=0;j<length;j++)
    {
        l->mch[j] = (struct mycoach*)malloc(sizeof(struct mycoach));
        printf("输入教练姓名
");
        scanf("%s", &l->mch[j]->name);
        printf("输入教练年龄
");
        scanf("%d", &l->mch[j]->age);
        printf("输入教练武技
");
        scanf("%s", &l->mch[j]->skills);
    }
    printf("j的值是：%d
",j);
    l->lastid = j;
    printf("输入完毕~黎塞留主教大人！");
}

void printinfo(struct seqlist* slist)
{
    int length = slist->lastid,j=0;
    for (j=0;j<length;j++)
    {
        printf("姓名：%s
", slist->mch[j]->name);
        printf("年龄：%d
", slist->mch[j]->age);
        printf("武技：%s
", slist->mch[j]->skills);
        free(slist->mch[j]);
        slist->mch[j] = NULL;
        printf("%s
", "======================");

    }
    
}

主函数调用

void main()
{
    struct seqlist * l;
    l = (struct seqlist*)malloc(sizeof(struct seqlist*));
    initlist(l);
    printf("
%s
", "======================");
    printinfo(l);
    system("pause");
}

输出结果：