C语言 管理系统 当我输入图书的名称之后 就无法继续下面的程序了 调试之后的结果如图 该怎么办呀？

Question

#include <stdio.h>
#include<stdlib.h> 
#include <malloc.h>
#include <string.h>
#pragma warning(disable:4996) 
typedef struct //商品结构体
{
    char name[10];  //商品名称
    int time;//进货时间
    int year;//生产日期
    int no;//保质期
}goodstype;

typedef struct node
{
    goodstype data;  //存放商品信息
    struct node* next;  //指向下一个节点的指针
}goodslist;

int menu_select() //菜单函数 
{
    char c;
    do {
        system("cls"); //运行前清屏
        printf("商店存货管理系统\n"); //菜单选择
        printf("  1. 输入数据\n");
        printf("  2. 显示数据\n");
        printf("  3. 插入数据\n");
        printf("  4. 删除数据\n");
        printf("  5. 查找数据\n");
        printf("  6. 排序\n");
        printf("  7. 写入文件\n");
        printf("  8. 删除所有商品\n");
        printf("  0. 退出\n");
        printf("\n");
        printf("    请选择(0-8):");
        c = getchar(); //读入选择
    } while (c < '0' || c>'8');
    return(c - '0'); //返回选择
}
void delall(goodslist*& l)  //删除商品的全部记录
{
    FILE* fp;
    goodslist* p, * q;
    if ((fp = fopen("goods.dat", "wb")) == NULL)
    {
        printf("  提示：不能打开商品信息文件\n");
        return;
    }
    fclose(fp);
    p = l->next;
    if (p != NULL)
    {
        q = p->next;
        while (q != NULL)
        {
            free(p);
            p = q;
            q = q->next;
        }
        free(p);
        l->next = NULL;
    }
    else
        printf("  提示：不存在任何商品信息记录\n");
    printf("  提示：商品信息删除完毕\n");
    printf("\t\t\t");
    system("pause");
}
void readfile(goodslist*& l)  //读goods.dat文件建立商品信息单链表l
{
    FILE* fp;
    goodstype goods;
    goodslist* p, * r;
    int n = 0;
    l = (goodslist*)malloc(sizeof(goodslist));
    r = l;
    if ((fp = fopen("goods.dat", "rb")) == NULL)
    {
        if ((fp = fopen("goods.dat", "wb")) == NULL)
            printf("  提示：不能创建goods.dat文件\n");
        printf("\t\t\t");
        system("pause");
    }
    else
    {
        while (fread(&goods, sizeof(goodstype), 1, fp) == 1)
        {
            p = (goodslist*)malloc(sizeof(goodslist));
            p->data = goods;
            r->next = p;
            r = p;
            n++;
        }
    }
    r->next = NULL;
    printf("  提示：商品信息单链表l建立完毕，有%d个记录\n", n);
    fclose(fp);
    printf("\t\t\t");
    system("pause");

}
void savefile(goodslist* l)  //将商品信息单链表存入数据文件
{
    goodslist* p = l->next, * q;
    FILE* fp;
    if ((fp = fopen("goods.dat", "wb")) == NULL)
    {
        printf("  提示：不能创建文件goods.dat\n");
        printf("\t\t\t");
        system("pause");
        return;
    }
    while (p != NULL)
    {
        fwrite(&p->data, sizeof(goodstype), 1, fp);
        p = p->next;
    }
    fclose(fp);
    p = l;
    q = p->next;
    while (q != NULL)
    {
        free(p);
        p = q;
        q = q->next;
    }
    free(p);
    printf("  提示：所有商品信息记录成功写入到goods.dat文件中\n");
    printf("\t\t\t");
    system("pause");
}
void inputgoods(goodslist*& l)  //插入一条商品信息记录
{
    char x[10];
    goodslist* p;
    p = (goodslist*)malloc(sizeof(goodslist));
    printf("   商品名称:"); //交互输入 
    scanf_s("%s", &p->data.name);
    printf("   进货时间(例20070201):");
    scanf_s("%d", &p->data.time);
    printf("   生产日期(例20070201):");
    scanf_s("%d", &p->data.year);
    printf("   保质期(年):");
    scanf_s("%d", &p->data.no);
    //gets(x); //清除多余的输入
    p->next = l->next;
    l->next = p;
    printf("商品信息插入成功！\n");
    printf("\t\t\t");
    system("pause");
}
int inputall(goodslist*& l, int n)  //最初输入若干条商品信息记录
{
    int i = 0;
    goodslist* p;
    char sign='\0';
        char x[10];
    while (sign != 'n' && sign != 'N')
    {
        p = (goodslist*)malloc(sizeof(goodslist));
        printf("   商品名称:"); //交互输入 
        scanf_s("%s", &p->data.name);
        printf("   进货时间(例20070201):");
        scanf_s("%d", &p->data.time);
        printf("   生产日期(例20070201):");
        scanf_s("%d", &p->data.year);
        printf("   t保质期(年):");
        scanf_s("%d", &p->data.no);
        //gets(x); //清除多余的输入 
        p->next = l->next;
        l->next = p;
        printf("   继续输入?(Y/N)");
        scanf_s("%c", &sign); //输入判断
        i++;
    }
    printf("          商品信息输入成功！\n");
    printf("\t\t\t");
    system("pause");
    return(n + i);
}
void sorttime(goodslist*& l)  //采用直接插入法对单链表l按进货时间递增有序排序
{
    goodslist* p, * pre, * q;
    p = l->next->next;
    if (p != NULL)
    {
        l->next->next = NULL;
        while (p != NULL)
        {
            q = p->next;
            pre = l;
            while (pre->next != NULL && pre->next->data.time < p->data.time)
            {
                pre = pre->next;
            }
            while (pre->next != NULL && pre->next->data.time == p->data.time &&
                (pre->next->data.year + (pre->next->data.no) * 10000) < (p->data.year + (p->data.no) * 10000))
            {
                pre = pre->next;
            }
            p->next = pre->next;
            pre->next = p;
            p = q;
        }
    }
    printf("  提示：按进货时间递增排序完毕\n");
    printf("\t\t\t");
    system("pause");
}
/*int locategoods(goodslist *l,char a[])  //按商品名称查询返回商品位置
{
    int i=1;
    goodslist *p=l->next;
    printf("   请输入商品名称：");
    scanf("%s",a);
    while(p!=NULL&&strcmp(p->data.name,a)!=0)
    {
        p=p->next;
        i++;
    }
    if(p==NULL)
        return (0);
    else
        return(i);
}*/

void onlydisplay(goodslist* l, char a[])  //根据商品名称显示商品所有信息
{
    int i = 1;
    goodslist* p = l->next;
    printf("   请输入商品名称：");
    scanf_s("%s", a);
    while (p != NULL && strcmp(p->data.name, a) != 0)
    {
        p = p->next;
        i++;
    }
    if (p == NULL)
        printf("不存在该商品！\n ");
    else
    {
        printf("      名称    进货时间    生产日期    保质期\n");
        printf("   --------------------------------------------------\n");
        printf("  >> %s      %d      %d     %d\n", p->data.name, p->data.time, p->data.year, p->data.no);
        printf("   --------------------------------------------------\n");
    }
    printf("\t\t\t");
    system("pause");
}
void deletegoods(goodslist* l, char a[])  //根据商品名称删除商品所有信息
{
    int i = 1;
    int j = 0;
    goodslist* q = l, * s;
    goodslist* p = l->next;
    printf("   请输入要删除的商品名称：");
    scanf_s("%s", a);
    while (p != NULL && strcmp(p->data.name, a) != 0)
    {
        p = p->next;
        i++;
    }
    if (p == NULL)
        printf("不存在该商品！\n");
    else
    {
        while (j < i - 1 && q != NULL)
        {
            j++;
            q = q->next;
        }
        if (q == NULL)
            printf("不存在该商品！\n");
        else
        {
            s = q->next;
            if (s == NULL)
                printf("不存在该商品！\n");
            q->next = s->next;
            free(s);
            printf("商品删除成功！\n");
        }
        printf("\t\t\t");
        system("pause");
    }
    /*if(p==NULL)
    printf("不存在该商品！\n ");
    else
    {
        printf("      名称    进货时间    生产日期    保质期\n");
        printf("   --------------------------------------------------\n");
        printf("  >> %s      %d      %d     %d\n",p->data.name,p->data.time,p->data.year,p->data.no);
        printf("   --------------------------------------------------\n");
    }*/
}
void display(goodslist* l)   //输出所有商品信息
{
    goodslist* p = l->next;
    if (p == NULL)
        printf("  提示：没有任何商品信息记录\n");
    else
    {
        printf("      名称    进货时间    生产日期    保质期\n");
        printf("   --------------------------------------------------\n");
        while (p != NULL)
        {
            printf("  >> %s      %d      %d     %d\n", p->data.name, p->data.time, p->data.year, p->data.no);
            p = p->next;
        }
        printf("   --------------------------------------------------\n");
    }
    printf("\t\t\t");
    system("pause");
}
void main()
{
    goodslist* l;
    char a[10];
    printf("由goods.dat文件建立商品信息单链表l\n");
    readfile(l);
    int n = 0;
    for (;;)
    {
        switch (menu_select()) //选择判断
        {
        case 1:
            printf("输入最初商品\n"); //输入若干条记录 
            n = inputall(l, n);
            break;
        case 2:
            display(l);
            break;
        case 3:inputgoods(l);
            break;
        case 4:deletegoods(l, a);
            break;
        case 5:onlydisplay(l, a);
            break;
        case 6:    sorttime(l);
            break;
        case 7:    savefile(l);
            break;
        case 8:delall(l);
            break;
        case 0:
            printf("\t\t\t结束退出!\n");   //结束程序
            printf("\t\t\t");
            system("pause");
            exit(1);
        }
    }
}

Answer 1

scanf_s的字符串有%s和%c时要提供长度参数。大概改了下，你看看有没问题：

#include <stdio.h>
#include<stdlib.h> 
#include <malloc.h>
#include <string.h>
#pragma warning(disable:4996) 
typedef struct //商品结构体
{
    char name[10];  //商品名称
    int time;//进货时间
    int year;//生产日期
    int no;//保质期
}goodstype;

typedef struct node
{
    goodstype data;  //存放商品信息
    struct node* next;  //指向下一个节点的指针
}goodslist;

int menu_select() //菜单函数 
{
    char c;
    do {
        system("cls"); //运行前清屏
        printf("商店存货管理系统\n"); //菜单选择
        printf("  1. 输入数据\n");
        printf("  2. 显示数据\n");
        printf("  3. 插入数据\n");
        printf("  4. 删除数据\n");
        printf("  5. 查找数据\n");
        printf("  6. 排序\n");
        printf("  7. 写入文件\n");
        printf("  8. 删除所有商品\n");
        printf("  0. 退出\n");
        printf("\n");
        printf("    请选择(0-8):");
        c = getchar(); //读入选择
    } while (c < '0' || c>'8');
    return(c - '0'); //返回选择
}
void delall(goodslist*& l)  //删除商品的全部记录
{
    FILE* fp;
    goodslist* p, *q;
    if ((fp = fopen("goods.dat", "wb")) == NULL)
    {
        printf("  提示：不能打开商品信息文件\n");
        return;
    }
    fclose(fp);
    p = l->next;
    if (p != NULL)
    {
        q = p->next;
        while (q != NULL)
        {
            free(p);
            p = q;
            q = q->next;
        }
        free(p);
        l->next = NULL;
    }
    else
        printf("  提示：不存在任何商品信息记录\n");
    printf("  提示：商品信息删除完毕\n");
    printf("\t\t\t");
    system("pause");
}
void readfile(goodslist*& l)  //读goods.dat文件建立商品信息单链表l
{
    FILE* fp;
    goodstype goods;
    goodslist* p, *r;
    int n = 0;
    l = (goodslist*)malloc(sizeof(goodslist));
    r = l;
    if ((fp = fopen("goods.dat", "rb")) == NULL)
    {
        if ((fp = fopen("goods.dat", "wb")) == NULL)
            printf("  提示：不能创建goods.dat文件\n");
        printf("\t\t\t");
        system("pause");
    }
    else
    {
        while (fread(&goods, sizeof(goodstype), 1, fp) == 1)
        {
            p = (goodslist*)malloc(sizeof(goodslist));
            p->data = goods;
            r->next = p;
            r = p;
            n++;
        }
    }
    r->next = NULL;
    printf("  提示：商品信息单链表l建立完毕，有%d个记录\n", n);
    fclose(fp);
    printf("\t\t\t");
    system("pause");

}
void savefile(goodslist* l)  //将商品信息单链表存入数据文件
{
    goodslist* p = l->next, *q;
    FILE* fp;
    if ((fp = fopen("goods.dat", "wb")) == NULL)
    {
        printf("  提示：不能创建文件goods.dat\n");
        printf("\t\t\t");
        system("pause");
        return;
    }
    while (p != NULL)
    {
        fwrite(&p->data, sizeof(goodstype), 1, fp);
        p = p->next;
    }
    fclose(fp);
    p = l;
    q = p->next;
    while (q != NULL)
    {
        free(p);
        p = q;
        q = q->next;
    }
    free(p);
    printf("  提示：所有商品信息记录成功写入到goods.dat文件中\n");
    printf("\t\t\t");
    system("pause");
}
void inputgoods(goodslist*& l)  //插入一条商品信息记录
{
    char x[10];
    goodslist* p;
    p = (goodslist*)malloc(sizeof(goodslist));
    printf("   商品名称:"); //交互输入 
    scanf_s("%s", p->data.name,10);
    printf("   进货时间(例20070201):");
    scanf_s("%d", &p->data.time);
    printf("   生产日期(例20070201):");
    scanf_s("%d", &p->data.year);
    printf("   保质期(年):");
    scanf_s("%d", &p->data.no);
    //gets(x); //清除多余的输入
    p->next = l->next;
    l->next = p;
    printf("商品信息插入成功！\n");
    printf("\t\t\t");
    system("pause");
}
int inputall(goodslist*& l, int n)  //最初输入若干条商品信息记录
{
    int i = 0;
    goodslist* p;
    char sign = '\0';
    char x[10];
    while (sign != 'n' && sign != 'N')
    {
        p = (goodslist*)malloc(sizeof(goodslist));
        printf("   商品名称:"); //交互输入 
        scanf_s("%s", p->data.name,10);
        printf("   进货时间(例20070201):");
        scanf_s("%d", &p->data.time);
        printf("   生产日期(例20070201):");
        scanf_s("%d", &p->data.year);
        printf("   t保质期(年):");
        scanf_s("%d", &p->data.no);
        //gets(x); //清除多余的输入 
        p->next = l->next;
        l->next = p;
        printf("   继续输入?(Y/N)");
        scanf_s("%c", &sign,1); //输入判断
        i++;
    }
    printf("          商品信息输入成功！\n");
    printf("\t\t\t");
    system("pause");
    return(n + i);
}
void sorttime(goodslist*& l)  //采用直接插入法对单链表l按进货时间递增有序排序
{
    goodslist* p, *pre, *q;
    p = l->next->next;
    if (p != NULL)
    {
        l->next->next = NULL;
        while (p != NULL)
        {
            q = p->next;
            pre = l;
            while (pre->next != NULL && pre->next->data.time < p->data.time)
            {
                pre = pre->next;
            }
            while (pre->next != NULL && pre->next->data.time == p->data.time &&
                (pre->next->data.year + (pre->next->data.no) * 10000) < (p->data.year + (p->data.no) * 10000))
            {
                pre = pre->next;
            }
            p->next = pre->next;
            pre->next = p;
            p = q;
        }
    }
    printf("  提示：按进货时间递增排序完毕\n");
    printf("\t\t\t");
    system("pause");
}
/*int locategoods(goodslist *l,char a[])  //按商品名称查询返回商品位置
{
int i=1;
goodslist *p=l->next;
printf("   请输入商品名称：");
scanf("%s",a);
while(p!=NULL&&strcmp(p->data.name,a)!=0)
{
p=p->next;
i++;
}
if(p==NULL)
return (0);
else
return(i);
}*/

void onlydisplay(goodslist* l, char a[])  //根据商品名称显示商品所有信息
{
    int i = 1;
    goodslist* p = l->next;
    printf("   请输入商品名称：");
    scanf_s("%s", a,10);
    while (p != NULL && strcmp(p->data.name, a) != 0)
    {
        p = p->next;
        i++;
    }
    if (p == NULL)
        printf("不存在该商品！\n ");
    else
    {
        printf("      名称    进货时间    生产日期    保质期\n");
        printf("   --------------------------------------------------\n");
        printf("  >> %s      %d      %d     %d\n", p->data.name, p->data.time, p->data.year, p->data.no);
        printf("   --------------------------------------------------\n");
    }
    printf("\t\t\t");
    system("pause");
}
void deletegoods(goodslist* l, char a[])  //根据商品名称删除商品所有信息
{
    int i = 1;
    int j = 0;
    goodslist* q = l, *s;
    goodslist* p = l->next;
    printf("   请输入要删除的商品名称：");
    scanf_s("%s", a,10);
    while (p != NULL && strcmp(p->data.name, a) != 0)
    {
        p = p->next;
        i++;
    }
    if (p == NULL)
        printf("不存在该商品！\n");
    else
    {
        while (j < i - 1 && q != NULL)
        {
            j++;
            q = q->next;
        }
        if (q == NULL)
            printf("不存在该商品！\n");
        else
        {
            s = q->next;
            if (s == NULL)
                printf("不存在该商品！\n");
            q->next = s->next;
            free(s);
            printf("商品删除成功！\n");
        }
        printf("\t\t\t");
        system("pause");
    }
    /*if(p==NULL)
    printf("不存在该商品！\n ");
    else
    {
    printf("      名称    进货时间    生产日期    保质期\n");
    printf("   --------------------------------------------------\n");
    printf("  >> %s      %d      %d     %d\n",p->data.name,p->data.time,p->data.year,p->data.no);
    printf("   --------------------------------------------------\n");
    }*/
}
void display(goodslist* l)   //输出所有商品信息
{
    goodslist* p = l->next;
    if (p == NULL)
        printf("  提示：没有任何商品信息记录\n");
    else
    {
        printf("      名称    进货时间    生产日期    保质期\n");
        printf("   --------------------------------------------------\n");
        while (p != NULL)
        {
            printf("  >> %s      %d      %d     %d\n", p->data.name, p->data.time, p->data.year, p->data.no);
            p = p->next;
        }
        printf("   --------------------------------------------------\n");
    }
    printf("\t\t\t");
    system("pause");
}
void main()
{
    goodslist* l;
    char a[10];
    printf("由goods.dat文件建立商品信息单链表l\n");
    readfile(l);
    int n = 0;
    for (;;)
    {
        switch (menu_select()) //选择判断
        {
        case 1:
            printf("输入最初商品\n"); //输入若干条记录 
            n = inputall(l, n);
            break;
        case 2:
            display(l);
            break;
        case 3:inputgoods(l);
            break;
        case 4:deletegoods(l, a);
            break;
        case 5:onlydisplay(l, a);
            break;
        case 6:    sorttime(l);
            break;
        case 7:    savefile(l);
            break;
        case 8:delall(l);
            break;
        case 0:
            printf("\t\t\t结束退出!\n");   //结束程序
            printf("\t\t\t");
            system("pause");
            exit(1);
        }
    }
}