C++ 빅데이터 개발에서 데이터 라벨링 문제를 해결하는 방법은 무엇입니까?

#include <iostream>
#include <string>

struct Person {
    std::string name;
    int age;
    double height;
};

int main() {
    Person p1;
    p1.name = "张三";
    p1.age = 25;
    p1.height = 1.75;

    Person p2;
    p2.name = "李四";
    p2.age = 30;
    p2.height = 1.80;

    std::cout << "姓名：" << p1.name << std::endl;
    std::cout << "年龄：" << p1.age << std::endl;
    std::cout << "身高：" << p1.height << "m" << std::endl;

    std::cout << "姓名：" << p2.name << std::endl;
    std::cout << "年龄：" << p2.age << std::endl;
    std::cout << "身高：" << p2.height << "m" << std::endl;

    return 0;
}

#include <iostream>

enum class Color {
    RED,
    GREEN,
    BLUE
};

int main() {
    Color c = Color::RED;

    switch (c) {
        case Color::RED:
            std::cout << "红色" << std::endl;
            break;
        case Color::GREEN:
            std::cout << "绿色" << std::endl;
            break;
        case Color::BLUE:
            std::cout << "蓝色" << std::endl;
            break;
        default:
            std::cout << "未知颜色" << std::endl;
            break;
    }

    return 0;
}

#include <iostream>

class Shape {
public:
    virtual double area() const = 0;
};

class Rectangle : public Shape {
public:
    Rectangle(double width, double height) : width_(width), height_(height) {}

    double area() const override {
        return width_ * height_;
    }

private:
    double width_;
    double height_;
};

class Circle : public Shape {
public:
    Circle(double radius) : radius_(radius) {}

    double area() const override {
        return 3.14159 * radius_ * radius_;
    }

private:
    double radius_;
};

int main() {
    Rectangle rectangle(5, 10);
    Circle circle(4);

    std::cout << "矩形面积：" << rectangle.area() << std::endl;
    std::cout << "圆形面积：" << circle.area() << std::endl;

    return 0;
}