feijidingpiao.c

此代码是一个数据结构课程设计——飞机订票系统.

#include
#include
#define OK 1
#define ERROR 0
typedef struct airline{
        char air_num[8];
        char plane_num[8];
        char end_place[20];
        int  total;
        int  left;
        struct airline *next;
}airline;
typedef struct customer{
        char name[8];
        char air_num[8];
        int  seat_num;
        struct customer *next;
}customer;
airline *start_air()
{
        airline *a;
        a=(airline*)malloc(sizeof(airline));
        if(a==NULL)
        a->next=NULL;
        return a;
}
customer *start_cus()
{
        customer *c;
        c=(customer*)malloc(sizeof(customer));
        if(c==NULL)
        c->next=NULL;
        return c;
}
airline *modefy_airline(airline *l,char *air_num)
{
        airline *p;
        p=l->next;
        for(;p!=NULL;p=p->next)
        {
                if(strcmp(air_num,p->air_num)==0)
                {
                        p->left++;
                        return l;
                }
                printf("NO the airline!");
                return 0;
        }
}
int insert_air(airline **p,char *air_num,char *plane_num,char *end_place,int total,int left)
{
        airline *q;
        q=(airline*)malloc(sizeof(airline));
        strcpy(q->air_num,air_num);
        strcpy(q->plane_num,plane_num);
        strcpy(q->end_place,end_place);
        q->total=total;
        q->left=left;
        q->next=NULL;
        (*p)->next=q;
        (*p)=(*p)->next;
        return OK;
        }
int  insert_cus(customer **p,char *name,char *air_num,int seat_num)
{
        customer *q;
        q=(customer*)malloc(sizeof(customer));
        strcpy(q->name,name);
        strcpy(q->air_num,air_num);
        q->seat_num=seat_num;
        q->next=NULL;
        (*p)->next=q;
        (*p)=(*p)->next;
        return OK;
}
int book(airline *a,char *air_num,customer *c,char *name)
{
        airline *p=a;
        customer *q=c->next;
        p=a->next;
        for(;q->next!=NULL;q=q->next){}
        for(;p->next!=NULL;p=p->next)
        {
                if(p->left>0)
                {
                        printf("Your seat number is %d",(p->total-p->left+1));
                        insert_cus(&q,name,air_num,p->total-p->left+1);
                        p->left--;
                        return OK;
                }
                else
                {
                        printf("seat is full");
                        return 0;
                }
        }
}

int del_cus(customer *c,airline *l,char *name)
{
        customer *p,*pr;
        char air_num[8];
        pr=c;
        p=pr->next;
        while(p!=NULL)
        {
                if(strcmp(p->name,name)==0)
                {
                        strcpy(air_num,p->air_num);
                        l=modefy_airline(l,air_num);
                        pr->next=p->next;
                        p=pr->next;
                        printf("finish!");
                        return OK;
                }
                pr=pr->next;
                p=pr->next;
        }
        printf("NO the customer!");
        return ERROR;
}
int search_air(airline *head)
{
        airline *p=head->next;
        printf("air_num  plane_num  end_place  total  left\n");
        for(;p!=NULL;p=p->next)
        {
                printf("%s    %-10s %-8s    %-8d%-8d\n",p->air_num,p->plane_num,p->end_place,p->total,p->left);
        }
        return OK;
}
int search_cus(customer *head)
{
        struct customer *q=head->next;
        printf("name    air_num    seat_num\n");
        for(;q!=NULL;q=q->next)
        {
                printf("%-8s%-12s%-d\n",q->name,q->air_num,q->seat_num);
        }
        return OK;
}
int creat_air(airline **l)
{
        airline *p=*l;
        int i=0;
        char *air_num[3]={"007af","008af","009af"};
        char *plane_num[3]={"plane1","plane2","plane3"};
        char *end_place[3]={"Beijing","Shanghai","Tianjin"};
        int total[3]={100,100,100};
        int left[3]={52,54,76};
        for(i=0;i<3;i++)
        insert_air(&p,air_num[i],plane_num[i],end_place[i],total[i],left[i]);
        return OK;
}
int creat_cus(customer **l)
{
        customer *p=*l;
        int i=0;
        char *name[3]={"zhsan","lisi","wangwu"};
        char *air_num[3]={"007af","008af","009af"};
        int seat_num[3]={2,5,7};
        for(i=0;i<3;i++)
        insert_cus(&p,name[i],air_num[i],seat_num[i]);
        return OK;

}
void main()
{
        int t=1;
        customer *cus=start_cus();
        airline  *air=start_air();
        char name[8],air_num[8],ch;
        creat_air(&air);
        creat_cus(&cus);
        while(t==1)
        {
                printf("\n");
                printf("*********************************\n");
                printf("*     Welcome to air firm!      *\n");
                printf("*         book--------1         *\n");
                printf("*         cancel------2         *\n");
                printf("*         search------3         *\n");
                printf("*         exit--------4         *\n");
                printf("*********************************\n");
                ch=getch();
                if(ch=='1')
                {
                        printf("Please input a airline number:");
                        scanf("%s",air_num);
                        printf("Please input a name:");
                        scanf("%s",name);
                        book(air,air_num,cus,name);
                }
                else
                    if(ch=='2')
                    {
                        printf("Please input the cancel name:");
                        scanf("%s",name);
                        del_cus(cus,air,name);
                     }
                     else
                         if(ch=='3')
                         {
                                search_air(air);
                                printf("\n");
                                search_cus(cus);
                         }
                         else
                              if(ch=='4')
                              {
                                t=0;
                              }
         }