定义一个汽车类，然后定义一个集合，加入5个汽车对象，然后对元素进行迭代输出（要求取出汽车对象中存放的车名、轮子个数、排量等信息）。-Define a car class, and then define a collection of objects added to five cars, then iterate over the elements of the output (requires removing objects stored in the car car name, numb