ADD file via upload

car.h

@@ -0,0 +1,23 @@
+#ifndef CAR_H
+#define CAR_H
+
+#include <iostream>
+#include "tyre.h"
+#include "driver.h"
+
+class Car
+{
+    Tyre tyre{};
+    Driver &driver; // 这里只能是引用或指针，同时必须在初始化列表当中初始化
+public:
+    Car(Tyre &_tyre, Driver &_driver) : tyre{_tyre}, driver{_driver}
+    {
+    }
+    void print()
+    {
+        tyre.print();
+        driver.print();
+    }
+};
+
+#endif