How to use C++ to implement a simple train ticket ordering system?

With the changes in people's work and lifestyle, more and more people choose to travel by train. Therefore, implementing a simple train ticket ordering system can facilitate users to book tickets, while also improving work efficiency and reducing manpower investment. This article will introduce how to use C to implement a simple train ticket ordering system to facilitate readers' learning and practice.

1. Requirements Analysis

Before starting to write the train ticket ordering system, we need to clarify the system requirements to determine the general development ideas. In this article, we will implement the following basic functions:

1. User login and registration: Users can register an account and log in to the system.

2. Ticket query: Users can query qualified train information based on departure and arrival stations and time.

3. Ticket ordering: Users can choose to purchase tickets and complete payment.

4. Order query: Users can query their order information.

2. Data structure design

When implementing the train ticket ordering system, we need to define relevant data structures to store and process data. The design of the data structure must take into account the realization of various functions and ensure the integrity and correctness of the data. In this article, we will define the following data structure:

1. User information structure: including user name, password, user ID and other information.

2. Train information structure: including train number, starting station, terminal station, departure time, arrival time, fare, remaining tickets and other information.

3. Order information structure: includes order number, ticket purchaser name, passenger name, train number, seat type, ticket purchase time, order status and other information.

3. Framework design

After clarifying the data structure, we need to carry out framework design to determine the architecture and process of the entire system. In this article, we will follow the following steps to complete the design and implementation of the system:

1. Implementation of user registration and login functions.

2. Implementation of ticket query function.

3. Implementation of ticket ordering function.

4. Implementation of order query function.

4. Code Implementation

After understanding the entire system architecture and process, we will start the specific code implementation. The following is an example of related code implementation, using class and function design based on C language:

1. User information class

class User {
private:

string userName, password;
int userId;

public:

// 用户注册功能
void registerUser(string _userName, string _password);

// 用户登录功能
bool loginUser(string _userName, string _password);

// 获取用户ID
int getUserId();

};

// Implementation of user registration function
void User::registerUser(string _userName, string _password) {

// TODO: 将用户信息插入数据库中

}

// Implementation of user login function
bool User::loginUser(string _userName, string _password) {

// TODO: 根据用户名和密码从数据库中检索用户信息
// 如果查询成功，返回true，否则返回false

}

// Implementation of obtaining user ID
int User::getUserId() {

return userId;

}

2. Train information class

class Train {
private:

string trainId, from, to;
string startTime, endTime;
float price;
int seats;

public:

// 车票查询功能
vector<Train> queryTrain(string _from, string _to, string _startTime);

// 车票订购功能
bool bookTrain(int _userId, string _trainId, int _seats);

// 获取车次信息
string getTrainId();
string getFrom();
string getTo();
string getStartTime();
string getEndTime();
float getPrice();
int getSeats();

};

// Implementation of ticket query function
vector Train::queryTrain(string _from, string _to, string _startTime) {

// TODO: 根据出发站、到达站、出发时间从数据库中查询符合条件的车票信息
// 将查询结果返回给调用函数

}

// Implementation of ticket ordering function
bool Train::bookTrain(int _userId, string _trainId, int _seats) {

// TODO: 根据车次ID更新车票剩余数量
// 将订单信息插入数据库中
// 完成支付操作，更新用户余额
return true;

}

// Implementation of obtaining train information
string Train::getTrainId() {

return trainId;

}

string Train::getFrom() {

return from;

}

string Train::getTo() {

return to;

}

string Train::getStartTime() {

return startTime;

}

string Train ::getEndTime() {

return endTime;

}

float Train::getPrice() {

return price;

}

int Train::getSeats() {

return seats;

}

3. Order information class

class Order {
private:

int orderId, userId;
string trainId, name, time;
int seats, status;

public:

// 订单查询功能
vector<Order> queryOrder(int _userId);

// 获取订单信息
int getOrderId();
int getUserId();
string getTrainId();
string getName();
string getTime();
int getSeats();
int getStatus();

} ;

// Implementation of order query function
vector Order::queryOrder(int _userId) {

// TODO: 根据用户ID从数据库中查询订单信息
// 将查询结果返回给调用函数

}

// Get order information Implement
int Order::getOrderId() {

return orderId;

}

int Order::getUserId() {

return userId;

}

string Order ::getTrainId() {

return trainId;

}

string Order::getName() {

return name;

}

string Order::getTime() {

return time;

}

int Order::getSeats() {

return seats;

}

int Order::getStatus() {

return status;

}

5. Summary

This article introduces how to use C to implement a simple train ticket ordering system. During the implementation process, we designed relevant data structures and frameworks based on demand analysis, and completed the implementation of user registration and login, ticket inquiry, ticket ordering, order inquiry and other functions. These code examples can provide reference for beginners, and can also provide reference and ideas for developers who need to implement similar systems.

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