飞机座位预定系统

void Menu(void)
{
printf(" To choose a function, enter its letter label:\n");
printf(" a) Show number of empty seats\n");
printf(" b) Show list of empty seats\n");
{
int num = 0;
printf("请输入要取消预约的座位号：\n");
scanf("%d", &num);
getchar();
putchar('\n');
(seats+num-1)->flag = 0;
strcpy((seats+num-1)->surname, "");
seatc++;
}
printf("您好，客机还剩 %d 座位。\n", seatc);
}
void Show_seatlist(const struct seat *seats)
{
int count;
printf("空座位编号：\n");
for(count=0; count<SEATMAX; count++)
}
}
void Assign_seat(struct seat *seats)
{
int count;
char ch;
int num = 0;
printf("以下是空座位编号，请选择：\n");
for(count=0; count<SEATMAX; count++)
{
{
int count;
assert(seats!=NULL);
for(count=0; count<SEATMAX; count++)
{
fread(seats+count, sizeof(struct seat), 1, file);
}
rewind(file);
}
f) Quit
c. 程序应能执行菜单所给出的功能。选择 d）和 e）需要额外的输入，每一个选项都应当允许用
户终止输入。
d．执行完一个特定的功能之后，程序再次显示菜单，除非选择了 f)。
e．每次运行程序都把数据保存到一个文件中。当程序再次运行时，首先从文件中载入数据（如果
有的话）。
a) Show number of empty seats
b) Show list of empty seats
c) Show alphabetical list of seats
d) Assign a customer to a seat assignment
e) Delete a seat assignment
{
int count;
for(count=0; count<SEATMAX; count++)
{
printf("Num:%d\n", (seats+count)->num);
printf("flag:%d\n", (seats+count)->flag);
printf("name:%s %s\n\n", (seats+count)->surname, (seats+count)->name);
char surname[SUENAMEMAX];
char name[NAMEMAX];
};
void main(void)
{
struct seat seats[SEATMAX] = {
{1},{2},{3},{4},{5},{6},
{7},{8},{9},{10},{11},{12}
if((seats+count)->flag==0)
printf("%d ", count+1);
if(!((count+1)%6))
putchar('\n');
}
scanf("%d", &num);
getchar();
printf("请依次输入客户的姓和名：\n");
{
fwrite(seats+count, sizeof(struct seat), 1, file);
}
fclose(file);
}
void Menu(void);
void Show_emseat(const struct seat *seats);
void Show_seatlist(const struct seat *seats);
void Show_alphlist(const struct seat *seats);
printf(" c) Show alphabetical list of seats\n");
printf(" d) Assign a customer to a seat assignment\n");
printf(" e) Delete a seat assignment\n");
}
Read_file(seats, file);
while(1)
{
Menu();
mode = getchar();
getchar();
switch(mode)
{
case 'a':
Show_emseat(seats);
break;
printf(" f) Quit\n");
}
void Show_emseat(const struct seat *seats)
{
int coufor(count=0; count<SEATMAX; count++)
{
if((seats+count)->flag==0)
巨人航空公司的机群由座位容量为 12 的飞机组成。它每天飞行一个航班。按照下面的功能，
写一个座位预订程序：
a．程序使用一个含 12 个结构的数组。每个结构要包括一个用于标识座位的编号、一个表示座位
是否已分配出去的标记、座位预订人的姓和座位预订人的名。
b．程序显示下面的菜单：
To choose a function, enter its letter label:
scanf("%s %s", &(seats+num-1)->surname, &(seats+num-1)->name);
getchar();
(seats+num-1)->flag = 1;
putchar('\n');
printf("已成功预约座位！\n");
}
void Delete_seat(struct seat *seats)
strcpy((seats+num-1)->name, "");
printf("取消成功!\n");
}
void Quit(const struct seat *seats, FILE* file)
{
int count;
rewind(file);
for(count=0; count<SEATMAX; count++)
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#define SEATMAX 12
#define SUENAMEMAX 20
#define NAMEMAX 20
void Read_file(struct seat *seats);
void Assign_seat(struct seat *seats);
void Delete_seat(struct seat *seats);
void Quit(const struct seat *seats);
struct seat {
int num;
int flag;
case 'b':
Show_seatlist(seats);
break;
case 'c':
Show_alphlist(seats);
break;
case 'd':
Assign_seat(seats);
break;
case 'e':
Delete_seat(seats);
break;
case 'f':
Quit(seats, file);
exit(0);
default:
break;
}
}
}