实例 C++ 在类外部定义的构造函数

#include <iostream>

using namespace std;

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class Car {        // The class

  public:          // Access specifier

    string brand;  // Attribute

    string model;  // Attribute

    int year;      // Attribute

    Car(string x, string y, int z); // Constructor declaration

};

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// Constructor definition outside the class

Car::Car(string x, string y, int z) {

  brand = x;

  model = y;

  year = z;

}

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int main() {

  // Create Car objects and call the constructor with different values

  Car carObj1("BMW", "X5", 1999);

  Car carObj2("Ford", "Mustang", 1969);

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  // Print values

  cout << carObj1.brand << " " << carObj1.model << " " << carObj1.year << "\n";

  cout << carObj2.brand << " " << carObj2.model << " " << carObj2.year << "\n";

  return 0;

}

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