//航空客運訂票系統
#include <iostream>
using namespace std;
#include <string.h>
#define OK 1
#define ERROR 0
//定義航空資訊的結構體
typedef struct airline{
char air_num[8]; //航班號
char plane_num[8]; //飛機號
char start_place[20];//起飛地
char end_place[20]; //目的地
char air_time[20]; //起降時間
int total; //座位總數
int left; //剩余座位數
struct airline*next; //下一個結點
}airline;
//定義乘客資訊的結構體
typedef struct customer{
char name[8]; //顧客姓名
char air_num[8]; //航班號
int seat_num; //座位號
struct customer*next; //下一個結點
}customer;
//初始化航空表頭結點
airline*start_air(){ //初始化鏈表
airline*a=new airline;
if(a==NULL)cout<<"overflow"<<endl; //如果鏈表為空，輸出overflow
return a; //否則，輸出鏈表
}
//初始化顧客表頭結點
customer*start_cus(){ //初始化鏈表
customer*c=new customer;
if(c==NULL)cout<<"overflow"<<endl;//如果顧客表為空，輸出元素溢位
return c; //輸出鏈表
}
//修改剩余座位
airline * modefy_airline(airline*l,char*air_num){ //引數：航班資訊，航班號
airline *p; //指標p
p=l->next;
for(;p!=NULL;p=p->next){ //如果p（航班資訊）不為空:
if(strcmp(air_num,p->air_num)==0){ //如果air_num 和 p->air_num相等,執行：
p->left++; //剩余座位數加1
return l;//把l的值回傳到函式
}
}
cout<<"沒有此航班:"<<endl; //輸出：沒有此航班
return 0;
}
//添加航空資訊表
int insert_air(airline**p,char*air_num,char*plane_num,char*start_place,char*end_place,char*air_time,int total,int left){ //添加
airline*q=new airline;
strcpy(q->air_num,air_num);
strcpy(q->plane_num,plane_num);
strcpy(q->start_place,start_place);
strcpy(q->end_place,end_place);
strcpy(q->air_time,air_time);//將航空資訊賦予p
q->total=total;
q->left=left;
q->next=NULL;
(*p)->next=q;
(*p)=(*p)->next;
return OK;
}
//添加顧客資訊表
int insert_cus(customer**p,char*name,char*air_num,int seat_num){
customer*q=new customer;
strcpy(q->name,name);
strcpy(q->air_num,air_num);
q->seat_num=seat_num;
q->next=NULL;//將顧客資訊賦予q
(*p)->next=q;
(*p)=(*p)->next;
return OK;
}
//預定
int book(airline*a,char*air_num,customer*c,char*name)
{
airline*p=a->next;
customer*q=c->next;
for(;q->next!=NULL;q=q->next){}
for(;p->next!=NULL;p=p->next){
if(p->left>0){//如果剩余座位
cout<<"您的座位號是："<<p->total-p->left+1<<endl; //座位號=總座位數-剩余座位數+1
insert_cus(&q,name,air_num,p->total-p->left+1); //呼叫insert,插入乘客資訊
p->left--; //剩余座位數減一
return OK;
}
}
cout<<"滿座"<<endl; //q->next為空，輸出：滿座
return 0;
}
//取消預定
int del_cus(customer*c,airline*l,char*name){
customer*p,*pr;
char air_num[8];
pr=c;
p=pr->next;//引入pr，改動pr指標，來改動p指標
while(p!=NULL){
if(strcmp(p->name,name)==0){ //如果輸入的名字在乘客表中
strcpy(air_num,p->air_num);
l=modefy_airline(l,air_num); //利用函式修改剩余座位
pr->next=p->next; //洗掉
p=pr->next;
cout<<"結束!"<<endl;
return OK;
}
pr=pr->next;
p=pr->next;
}
cout<<"沒有此乘客!"<<endl;
return ERROR;
}
//查詢并輸出所有航班資訊
int search_air(airline*head,char*start_place,char*end_place,char *airnum){
airline*p=head->next;
cout<<"air_num plane_num start_place end_place air_time left total "<<endl;
for(;p!=NULL;p=p->next){ //從第一行向下依次查詢
if(strcmp(p->air_num,airnum)==0){
cout<<p->air_num<<" "<<p->plane_num<<" "<<p->start_place<<" "<<p->end_place<<" "<<p->air_time<<" "<<p->left<<" "<<p->total<<endl;
return OK;}
} //輸出
cout<<"沒有找到"<<endl;
return ERROR;
}
//根據顧客姓名查詢資訊
int search_cus(customer *head,char* name){
customer*q=head->next;
cout<<"name air_num seat_num"<<endl;
for(;q!=NULL;q=q->next){
if(strcmp(q->name,name)==0){//根據顧客姓名來查詢
cout<<q->name<<" "<<q->air_num<<" "<<q->seat_num<<" "<<endl;
return OK;
}
}
cout<<"not find!"<<endl;
return ERROR;
}
//創建航空資訊表
int creat_air(airline**l){
airline*p=*l;
int i=0;
char*air_num[3]={"007af","008af","009af"};//航班號
char*plane_num[3]={"plane1","plane2","plane3"};//飛機號
char*start_place[4]={"guangdong ","langfang","zhejiang"};//起飛地
char*end_place[3]={"beijing","shanghai","tianjin"}; //目的地
char*air_time[20]={"8:00-10:00","9:20-11:10","11:00-12:30"};//起降時間
int total[3]={100,100,100};//座位總數
int left[3]={52,54,76};//剩余座位數
for(i=0;i<3;i++)
insert_air(&p,air_num[i],plane_num[i],start_place[i],end_place[i],air_time[i],total[i],left[i]);//航空資訊函式呼叫
return OK;
}
//創建顧客資訊表
int creat_cus(customer**l){
customer*p=*l;
int i=0;
char*name[3]={"zhang","lisi","lucky"};
char*air_num[3]={"007af","008af","009af"};
int seat_num[3]={14,20,27};
for(i=0;i<3;i++)
insert_cus(&p,name[i],air_num[i],seat_num[i]);
return OK;
}
//主程式
void main(){
int t=1;//通過t控制回圈次數，使得程式多次回圈
customer*cus=start_cus();
airline*air=start_air();
int insert_air(airline**p,char*air_num,char*plane_num,char*start_place,char*end_place,char*air_time,int total,int left);//函式宣告
int insert_cus(customer**p,char*name,char*air_num,int seat_num);
int del_cus(customer*c,airline*l,char*name);
int search_cus(customer *head,char* name);
int book(airline*a,char*air_num,customer*c,char*name);
int search_air(airline*head,char*start_place,char*end_place,char *airnum);
int creat_air(airline**l);
int creat_cus(customer**l);
char name[8],air_num[8],start_place[20],end_place[20],air_time[20],ch;
creat_air(&air);
creat_cus(&cus);
while(t==1){//輸出操作選單
cout<<endl;
cout<<"********************************"<<endl;
cout<<"* welcome to air firm! "<<endl;
cout<<"* 航班預定---------------1 "<<endl;
cout<<"* 取消預定-------------2 "<<endl;
cout<<"* 查詢顧客資訊-----3 "<<endl;
cout<<"* 查詢航班資訊-----4 "<<endl;
cout<<"* 退出---------------5 "<<endl;
cout<<"********************************"<<endl;
ch=getchar();
if(ch=='1'){// 航班預定
cout<<"請輸入航班號:";
cin>>air_num;
cout<<"請輸入名字:";
cin>>name;
book(air,air_num,cus,name);
}
else
if(ch=='2')//取消預定
{
cout<<"請輸入要取消的名字:";
cin>>name;
del_cus(cus,air,name);
}
else
if(ch=='3')//查詢顧客資訊-
{
cout<<"請輸入要查找的名字:";
cin>>name;
search_cus(cus,name);
}
else
if(ch=='4')//查詢航班資訊-
{
cout<<"請輸入要查找航班號:";
cin>>air_num;
search_air(air,start_place,end_place,air_num);
}
else
if(ch=='5') t=0;
getchar();
}
}
uj5u.com熱心網友回復：
長求總，給出測驗資料和錯誤現象為啥modefy_airline 里面不改當前節點的資料？取消的時候也直接取next，是因為頭節點不存資料？
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