给我编写一个复杂的学生教师一卡通管理系统

好的，下面是一个基于C++的学生教师一卡通管理系统的示例代码。该系统包括了充值、消费、查询余额、添加学生和教师等多个功能，并使用了SQLite作为数据库。

#include <iostream>
#include <string>
#include <sqlite3.h>

using namespace std;

static int callback(void *data, int argc, char **argv, char **azColName){
   int i;
   for(i=0; i<argc; i++){
      cout << azColName[i] << ": " << argv[i] << endl;
   }
   cout << endl;
   return 0;
}

class Card {
public:
    Card(int id, string name, float balance) : id(id), name(name), balance(balance) {};
    int getId() { return id; }
    string getName() { return name; }
    float getBalance() { return balance; }
    void setBalance(float bal) { balance = bal; }
private:
    int id;
    string name;
    float balance;
};

class Student : public Card {
public:
    Student(int id, string name, float balance, string major) : Card(id, name, balance), major(major) {};
    string getMajor() { return major; }
private:
    string major;
};

class Teacher : public Card {
public:
    Teacher(int id, string name, float balance, string department) : Card(id, name, balance), department(department) {};
    string getDepartment() { return department; }
private:
    string department;
};

class CardManager {
public:
    CardManager() {
        rc = sqlite3_open("test.db", &db);
        if( rc ) {
            cout << "Can't open database: " << sqlite3_errmsg(db) << endl;
        } else {
            cout << "Opened database successfully" << endl;
        }
        // create table
        string sql = "CREATE TABLE CARD("
                     "ID INT PRIMARY KEY     NOT NULL,"
                     "NAME           TEXT    NOT NULL,"
                     "TYPE           TEXT    NOT NULL,"
                     "BALANCE        REAL    NOT NULL);";
        rc = sqlite3_exec(db, sql.c_str(), callback, 0, &zErrMsg);
        if( rc != SQLITE_OK ){
            cout << "SQL error: " << zErrMsg << endl;
            sqlite3_free(zErrMsg);
        } else {
            cout << "Table created successfully" << endl;
        }
    }

    ~CardManager() {
        sqlite3_close(db);
    }

    void addStudent(int id, string name, float balance, string major) {
        Student s(id, name, balance, major);
        cards.push_back(s);
        string sql = "INSERT INTO CARD (ID, NAME, TYPE, BALANCE) "
                     "VALUES (" + to_string(id) + ", '" + name + "', 'student', " + to_string(balance) + ")";
        rc = sqlite3_exec(db, sql.c_str(), callback, 0, &zErrMsg);
        if( rc != SQLITE_OK ){
            cout << "SQL error: " << zErrMsg << endl;
            sqlite3_free(zErrMsg);
        } else {
            cout << "Student added successfully" << endl;
        }
    }

    void addTeacher(int id, string name, float balance, string department) {
        Teacher t(id, name, balance, department);
        cards.push_back(t);
        string sql = "INSERT INTO CARD (ID, NAME, TYPE, BALANCE) "
                     "VALUES (" + to_string(id) + ", '" + name + "', 'teacher', " + to_string(balance) + ")";
        rc = sqlite3_exec(db, sql.c_str(), callback, 0, &zErrMsg);
        if( rc != SQLITE_OK ){
            cout << "SQL error: " << zErrMsg << endl;
            sqlite3_free(zErrMsg);
        } else {
            cout << "Teacher added successfully" << endl;
        }
    }

    void recharge(int id, float amount) {
        for (auto& c : cards) {
            if (c.getId() == id) {
                float bal = c.getBalance() + amount;
                c.setBalance(bal);
                string sql = "UPDATE CARD SET BALANCE=" + to_string(bal) + " WHERE ID=" + to_string(id);
                rc = sqlite3_exec(db, sql.c_str(), callback, 0, &zErrMsg);
                if( rc != SQLITE_OK ){
                    cout << "SQL error: " << zErrMsg << endl;
                    sqlite3_free(zErrMsg);
                } else {
                    cout << "Recharge successful" << endl;
                }
                return;
            }
        }
        cout << "Card not found" << endl;
    }

    void consume(int id, float amount) {
        for (auto& c : cards) {
            if (c.getId() == id) {
                float bal = c.getBalance() - amount;
                if (bal < 0) {
                    cout << "Insufficient balance" << endl;
                    return;
                }
                c.setBalance(bal);
                string sql = "UPDATE CARD SET BALANCE=" + to_string(bal) + " WHERE ID=" + to_string(id);
                rc = sqlite3_exec(db, sql.c_str(), callback, 0, &zErrMsg);
                if( rc != SQLITE_OK ){
                    cout << "SQL error: " << zErrMsg << endl;
                    sqlite3_free(zErrMsg);
                } else {
                    cout << "Consumption successful" << endl;
                }
                return;
            }
        }
        cout << "Card not found" << endl;
    }

    void queryBalance(int id) {
        for (auto& c : cards) {
            if (c.getId() == id) {
                cout << "Balance of card " << id << ": " << c.getBalance() << endl;
                return;
            }
        }
        cout << "Card not found" << endl;
    }

private:
    vector<Card> cards;
    sqlite3 *db;
    char *zErrMsg = 0;
    int rc;
};

int main() {
    CardManager cm;
    cm.addStudent(1001, "Tom", 200.0, "Computer Science");
    cm.addTeacher(2001, "Jerry", 500.0, "Mathematics");
    cm.recharge(1001, 50.0);
    cm.consume(1001, 100.0);
    cm.queryBalance(1001);
    return 0;
}

该代码定义了三个类：Card、Student和Teacher，分别表示一张卡、学生卡和教师卡。CardManager类负责管理卡片，包括添加卡片、充值、消费和查询余额等操作，并使用了SQLite作为数据库来存储卡片信息。在main函数中，我们向CardManager中添加了一个学生卡和一个教师卡，并对学生卡进行了充值、消费和查询余额的操作。

您可以根据您的具体需求对该系统进行修改和扩展。希望能对您有所帮助！