c++ - 类中有指针，又有vector，其uml图如何画

Question

某个类的成员变量中有指针，还有vector对象，那么该如何画uml，成员变量的类型只有基本的int，char等。没有这些复杂的类型啊
还有就是一个类中包含另外一个类的对象，这是什么关系啊

Answer 1

UML diagrams can contain custom types, including array objects, but they generally do not exist as in-class attributes. Because the type contained in the pointer or vector itself should also be an entity, another representation is more appropriate. The two can be connected through relationships.

A class containing objects of another class is usually composition or aggregation. Tires and cars are a combination relationship, and wild geese and a flock of geese are an aggregation relationship.