Question

我正在学习C ++，我必须创建一个程序来跟踪车辆及其驱动程序。我正在使用结构和向量来实现这一点。这是结构和向量的声明：

struct Vehicle {
    string License;
    string Place;
    int Capacity;
    struct Driver {
        string Name;
        int Code;
        int Id;
    };
};


vector<Vehicle> &vtnewV

好的，程序然后要求用户输入以获取基本信息，我使用以下函数：

void AddVehicle() {
    Vehicle newV;
    cout << "Enter license plate number: " << endl;
    cin >> newV.License;
    cout << "Enter the vehicle's ubication: " << endl;
    cin >> newV.Place;
    cout << "Enter the vehicle's capacity: " << endl;
    cin >> newV.Capacity;
    vtnewV.push_back(newV);

然后我需要输入以获取有关驱动程序的信息。我不知道怎么做。以下是我到目前为止编写的内容：

void AddDriver(){
    int Plate;
    string DriverName;
    int Code;
    int Id;
    system("CLS");
    cout << "Enter the vehicle's license plate number: " << endl;
    cin >> Plate;
    if(std::find(vtnewV.begin(), vtnewV.end(), Plate) != vtnewV.end())
        system("CLS");
        cout << "Enter the driver's name: " << endl;
        cin >> DriverName;
        cout << "Enter the driver's code: " << endl;
        cin >> Code;
        cout << "Enter the driver's id: " << endl;
        cin >> Id;
        Vehicle::Driver fella;
        fella.Name = DriverName;
        fella.Code = Code;
        fella.Id = Id;

}

事情是，我不知道如何“选择”它找到的结构，然后将Driver结构添加到Vehicle。任何帮助将不胜感激。

编辑：有些用户发现此问题与其他用户之间存在相似之处。我们实际上在一起工作。

Answer 1

您需要在Vehicle中创建一个类型为Driver的成员变量。

例如：

struct Vehicle {

    // This is just a type, not an object
    struct Driver {
        string Name;
        int Code;
        int Id;
    };

    string License; // This is an object of type std::string
    string Place;
    int Capacity; // This is an object of type int

    Driver driver; // THIS is an object of type Driver
};

int main()
{
    Vehicle vehicle;

    // now we can refer to the object of type Driver
    // that we appropriately named "driver"
    vehicle.driver.Name = "Bob"; 
}

Answer 2

将Driver类型的成员添加到您的结构

struct Vehicle {
    string License;
    string Place;
    int    Capacity;

    struct Driver {
        string Name;
        int    Code;
        int    Id;
    } driver;    // driver is a member of Vehicle and of type Driver
};

如何将嵌套结构添加到矢量

2 个答案: