#include<stdio.h>
#include<stdlib.h>
#include<string.h>
typedef struct a{
char num;//影片编号
char name[100]; //影片名
char space;//影片地区类型
char content;//影片内容
double price;//价格
char date; //日期
struct a* next;
}DVD,*List;
List head=NULL;
int Login(); // 登陆
void Menu(); // 主菜单
int Choose(); // 选择功能
void Creathead(); // 创建头结点
void DisplayAll(); // 显示所有影片
void Delete(); // 删除影片
void DeleteAll(); // 删除所有
void Modify(); // 修改影片数据
void Search(); // 查找影片
void Sort(); // 排序
void Changedata(List p); // 排序中的数据交换
void Save(); // 保存
int main()
{
if(Login()==0) return 0;
Reload();
while (1)
{
Menu();
switch (Choose())
{
case 1:
Create(); break;
case 2:
Delete(); break;
case 3:
Search();break;
case 4:
Modify(); break;
case 6:
DisplayAll(); break;
case 5:
DeleteAll(); break;
case 7:
Sort(); break;
case 8:
Save(); break;
case 0:
return 0;
}
}
}
int Login()
{
while (1)
printf(".......................\n");
printf("DVD影片管理系统\n");
printf("\t1.新增影片\n");
printf("\t2.影片浏览\n");
printf("\t3.影片删除\n");
printf("\t4.影片修改\n");
printf("\t5.影片排序\n");
printf("\t6.影片查询\n");
printf("\t7.影片统计\n");
printf(".......................\n");
} int choose;
char fusername[100], fpassword[100];
char username[100], password[100];
scanf("%d", &choose);
if ('choose' == 1)
{
FILE* f1 = fopen("DVD.txt", "r");
while ((c = getch()) != '\r')
{
if (c == '\b')
{
i--;
putchar('\b');
putchar(' ');
putchar('\b');
}
else
{
password[i] = c;
i++;
putchar('*');
}
}
printf("\n");
password[i] = '\0';
fscanf(f1, "%s %s", fusername, fpassword);
if ((strcmp(fusername, username) == 0) && (strcmp(fpassword, password)) == 0)
{
getch();
system("cls");
}
void Menu()
{
printf(".......................\n");
printf("DVD影片管理系统\n");
printf("\t1.新增影片\n");
printf("\t2.影片浏览\n");
printf("\t3.影片删除\n");
printf("\t4.影片修改\n");
printf("\t5.影片排序\n");
printf("\t6.影片查询\n");
printf("\t7.影片统计\n");
printf(".......................\n")
}
int Choose(){
int n;
printf("请输入序号:");
while (scanf("%d", &n) != 1 || n < 0 || n>8)
{
printf("请重新输入:");
scanf("%d", &n);
}
return n;
}
void Reload()
{
int number,name,space,content,price,date;
char number;
char name[100];
char space[100];
char content[100];
double price;
char date[100][100][100];
List b=head;
FILE* p = fopen("data.txt", "a+");
while (fscanf(p, "%d%s%s%s%lf%d",&number,name,&space,&content,&price,&date) == 6)
{
List a = (List)malloc(sizeof(DVD));
b->next=a;
a->number= number;
a->name =name;
a->space = space;
a->content= content;
a->price=price;
strcpy(a->name, name);
int i;
for(i=0;i<number;i++)
{
fscanf(p,"%s",date[i]);
strcpy(a->date[i], date[i]);
}
b = b->next;
++;
}
if(number!=0)
b->next = NULL;
printf("成功载入%d条信息\n\n", number);
fclose(p);
}
void Creathead()
{
List a=(List)malloc(sizeof(DVD));
a->number = 0;
a->name = 0;
a->space= 0;
a->content = 0;
a->price = 0;
strcpy(a->number, "0");
// strcpy(a->date, "0");
a->next=NULL;
head=a;
}
void Creat()
{
List a = (List)malloc(sizeof(DVD));
printf(" 请输入影片编号： ");
scanf("%s", a->number);
printf("请输入影片名称： ");
scanf("%s",&a->name);
printf("请输入地区类型：");
scanf("%s", &a->space);
printf("请输入内容： ");
scanf("%d", &a->content);
printf("请输入价格： ");
scanf("%lf", &a->price);
printf("请输入日期： ");
scanf("%d", &a->date);
int i;
for(i=0;i< a->number;i++)
scanf("%s", a->timeline[i]);
a->next = NULL;
List b = head;
while (b->next != NULL)
b = b->next;
b->next = a;
system("cls");
printf("添加成功\n\n");
}
void Search()
{
int flag = 1;
List a,b;
a=b = head->next;
char name[100];
printf("输入要查找的影片名:");
scanf("%s", name);
printf("\n");
while(strcmp(a->name,name))
{
b=a;
a=b->next;
if (a== NULL)
{
printf("查找失败\n\n");
flag = 0;
break;
}
}
if(flag)
{
printf("影片编号\t\t影片名称\t\t地区类型\t\t内容类型\t\t价格\t\出版日期\t\\n");
printf("---------------------------------------------------------");
printf("---------------------------------------------------\n");
printf("%d\t%s\t\t%s\t\t%s\t\t%d\t\t%s\t\t\n",-10,a->number,a->name,a->space,a->content,a->price,a->date);
int i;
for(i=1;i<a->number;i++)
printf("\t\t\t\t\t\t\t\t\t\t\t\t[%d]%s\n",i+1,a->date[i]);
printf("\n");
}
printf("\n\n");
getchar();
getchar();
system("cls");
}
void Delete()
{
char choose;
char name[100];
List a=head,b=head;
printf("输入要删除的影片名： ");
scanf("%s",name);
while(strcmp(a->name, name))
{
b=a;
a = b->next;
}
printf("确认删除影片 %s (y/n)",a->name);
getchar();
scanf("%c",&choose);
if(choose=='y')
{
b->next=a->next;
free(a);
}
}
void DeleteAll()
{
List a, b;
a = b = head->next;
while (a != NULL)
{
b = a->next;
free(a);
a = b;
}
head->next = NULL;
remove("data");
}
void Modify()
{
int flag = 0;
char name[100],choose;
List a=head->next,b=head;
getchar();
printf("输入要修改的影片名： ");
scanf("%s", name);
getchar();
while(a!=NULL)
{
if (strcmp(a->name, name) == 0)
{
flag = 1;
break;
}
b = a;
a = b->next;
}
if (flag)
{
printf("影片名为 %s 是否修改(y/n)", a->name);
scanf("%c", &choose);
getchar();
if (choose == 'y')
{
printf("修改为：");
void DisplayAll()
{
system("cls");
List a, b;
a = b = head->next;
if (head->next == NULL)
{
printf("无数据");
getchar();
getchar();
system("cls");
return;
}
printf("影片编号\t\t影片名称\t\t地区类型\t\t内容类型\t\t价格\t\t出版日期\n");
printf("---------------------------------------------------------");
printf("---------------------------------------------------\n");
while (a!=NULL)
{
printf("%s\t%s\t\t%s\t\t%s\t\t%d\t\t%s\t\t[1]%s\n",-10,a->number,a->name,a->space,a->content,a->price,a->date);
int i;
for(i=1;i<a->number;i++)
printf("\t\t\t\t\t\t\t\t\t\t\t\t[%d]%s\n",i+1,a->date);
printf("\n");
b = a;
a = b->next;
}
getchar();
getchar();
system("cls");
}
void Sort()
{
int a,b;
printf("请选择 1.降序 2.升序 :");
scanf("%d",&b);
List p = head->next;
List p1 = NULL;
while (p != p1)
{
while (p->next != p1)
{
if (a == 1)
{
if (b == 1)
{
if (p->grade < p->next->grade)
{
Changedata(p);
}
}
else if (b == 2)
{
if (p->grade > p->next->grade)
{
Changedata(p);
}
p1 = p;
p = head->next; }
printf("排序成功\n\n");
getch();
system("cls");
}
void Changedata(List p)
{
double ex1 = p->number;
p->number = p->next->number;
p->next-> = ex1;
int ex2 = p->name;
p->name = p->next->name;
p->next->name= ex2;
int ex4 = p->space;
p->space = p->next->space;
p->next->space = ex4;
int ex5 = p->content;
p->content = p->next->content;
p->next->content = ex5;
char temp[100];
strcpy(temp, p->name);
strcpy(p->name, p->next->name);
strcpy(p->next->name, temp);
char temp2[100][100];
int i;
for(i=0;i<p->number;i++)
strcpy(temp2[i], p->date);
for(i=0;i<p->next->number;i++)
strcpy(p->timeline[i], p->next->date);
for(i=0;i<p->number;i++)
strcpy(p->next->date, temp2[i]);
int ex3 = p->number;
p->number = p->next->number;
p->next->number = ex3;
}
void Save()
{
if (head->next == NULL)
{
printf("未录入信息\n\n");
return;
}
fclose(p);
printf("保存成功");
getch();
system("cls");
}
你发的代码不全，错误也需要发出来
代码不全，你代码用“代码段”贴出来
Reload函数里面，很多重复定义的变量到底用哪个?
a结构体中：
char num;
char space;//影片地区类型
char content;//影片内容
这三个都是char类型，确定不是char数组吗？一个char能放下影片内容？