效果：

类图：

 代码：

 1 #include<iostream>
 2 using namespace std;
 3 
 4 //抽象类AbstractDog
 5 class AbstractDog {
 6 public:
 7     virtual void dog_looks() = 0;
 8     virtual void bark() = 0;
 9 };
10 
11 //抽象类AbstractCat
12 class AbstractCat {
13 public:
14     virtual void cat_looks() = 0;
15     virtual void grab() = 0;
16 };
17 
18 //Adapter类Dog
19 class Dog {
20 public:
21     void dog_looks() {
22         std::cout << "我是一只狗！" << std::endl;
23     }
24     void bark() {
25         std::cout << "我是狗，我会狗吠哦！" << std::endl;
26     }
27 };
28 
29 //Adapter类Cat
30 class Cat {
31 public:
32     void cat_looks() {
33         std::cout << "我是一只猫！" << std::endl;
34     }
35     void grab() {
36         std::cout << "我是猫，我会抓老鼠哦！" << std::endl;
37     }
38 };
39 
40 //Adapter类DogAdapter
41 class DogAdapter :public AbstractCat, private Dog {
42 public:
43     void cat_looks() {
44         std::cout << "猫模仿狗：" << std::endl;
45         Dog::dog_looks();
46     }
47     void grab() {
48         std::cout << "猫模仿狗：" << std::endl;
49         Dog::bark();
50     }
51 };
52 
53 //Adapter类CatAdapter
54 class CatAdapter :public AbstractDog, private Cat {
55 public:
56     void dog_looks() {
57         std::cout << "狗模仿猫：" << std::endl;
58         Cat::cat_looks();
59     }
60     void bark() {
61         std::cout << "狗模仿猫：" << std::endl;
62         Cat::grab();
63     }
64 };
65 
66 class Client {
67 public:
68     void client() {
69         DogAdapter* cat = new DogAdapter();
70         cat->cat_looks();
71         cat->grab();
72 
73         CatAdapter* dog = new CatAdapter();
74         dog->dog_looks();
75         dog->bark();
76     }
77 };
78 
79 //Client
80 int main() {
81     Client client;
82     client.client();
83     return 0;
84 
85 }

参考链接：https://blog.csdn.net/janeqi1987/article/details/103945540