CS-Notes/notes/面向对象思想.md

<!-- GFM-TOC -->
* [S.O.L.I.D](#solid)
    * [1. <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>](#1-<2D><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>)
    * [2. <20><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>](#2-<2D><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>)
    * [3. <20><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>](#3-<2D><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>)
    * [4. <20>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>](#4-<2D>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>)
    * [5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>](#5-<2D><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>)
* [<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD>̳С<EFBFBD><EFBFBD><EFBFBD>̬](#<23><>װ<EFBFBD>̳ж<CCB3>̬)
    * [1. <20><>װ](#1-<2D><>װ)
    * [2. <20>̳<EFBFBD>](#2-<2D>̳<EFBFBD>)
    * [3. <20><>̬](#3-<2D><>̬)
* [UML](#uml)
    * [1. <20><>ͼ](#1-<2D><>ͼ)
    * [2. ʱ<><CAB1>ͼ](#2-ʱ<><CAB1>ͼ)
* [<EFBFBD>ο<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>](#<23>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>)
<!-- GFM-TOC -->

# S.O.L.I.D

S.O.L.I.D<><44><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƺͱ<C6BA><CDB1><EFBFBD>(OOD&OOP)<29>м<EFBFBD><D0BC><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>(Programming Priciple)<29><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD><C4B8>д<EFBFBD><D0B4>

|<7C><>д    |ȫƴ    |<7C><><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD>|
| -- | -- | -- |
|SRP|    The Single Responsibility Principle    |<7C><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>|
|OCP|    The Open Closed Principle            | <20><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>|
|LSP|    The Liskov Substitution Principle    |<7C><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>|
|ISP|    The Interface Segregation Principle    |<7C>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>|
|DIP|    The Dependency Inversion Principle    |<7C><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>|


## 1. <20><>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>޸<EFBFBD>ij<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>仰˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Σ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>е<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ε<EFBFBD>ʱ<EFBFBD>򣬾<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ֽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࡣ

## 2. <20><><EFBFBD>ŷ<EFBFBD><C5B7><EFBFBD>ԭ<EFBFBD><D4AD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ĵġ<EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>չ<EFBFBD>ǿ<EFBFBD><EFBFBD>ŵģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸<EFBFBD><EFBFBD>Ƿ<EFBFBD><EFBFBD>յġ<EFBFBD>

## 3. <20><><EFBFBD><EFBFBD><EFBFBD>滻ԭ<E6BBBB><D4AD>

<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD>滻<EFBFBD>κ<EFBFBD><EFBFBD>䳬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>ž<EFBFBD><EFBFBD><EFBFBD> is-a <20><>ϵ<EFBFBD><CFB5>

## 4. <20>ӿڷ<D3BF><DAB7><EFBFBD>ԭ<EFBFBD><D4AD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD>ȥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Щ<EFBFBD><EFBFBD><EFBFBD>Dz<EFBFBD>ʹ<EFBFBD>õĽӿڡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>仰˵<EFBFBD><EFBFBD>ʹ<EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD>ר<EFBFBD>ŵĽӿڱ<EFBFBD>ʹ<EFBFBD>õ<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD>ܽӿ<EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>á<EFBFBD>

## 5. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><D4AD>

1.  <20>߲<EFBFBD>ģ<EFBFBD>鲻Ӧ<E9B2BB><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵͲ<DAB5>ģ<EFBFBD>飬<EFBFBD><E9A3AC><EFBFBD>߶<EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD>
2.  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD>ڣ<EFBFBD>ϸ<EFBFBD><CFB8>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><DAB3><EFBFBD>

# <20><>װ<EFBFBD><D7B0><EFBFBD>̳С<CCB3><D0A1><EFBFBD>̬

<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD>̳С<EFBFBD><EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԡ<EFBFBD>

## 1. <20><>װ

<EFBFBD><EFBFBD><EFBFBD>ó<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݺͻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݵIJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>乹<EFBFBD><EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷָ<EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>壬<EFBFBD><EFBFBD><EFBFBD>ݱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>͵<EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ܵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD>ڣ<EFBFBD>ֻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>һЩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӿ<EFBFBD>ʹ֮<EFBFBD><EFBFBD><EFBFBD>ⲿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD><EFBFBD><EFBFBD>ϸ<EFBFBD>ڣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ṩ<EFBFBD>Ľӿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʸö<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

<EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ô<EFBFBD><EFBFBD><EFBFBD>

1. <20><><EFBFBD>õķ<C3B5>װ<EFBFBD>ܹ<EFBFBD><DCB9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϡ<EFBFBD>

2. <20><><EFBFBD>ڲ<EFBFBD><DAB2>Ľṹ<C4BD><E1B9B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>޸ġ<DEB8>

3. <20><><EFBFBD>ԶԳ<D4B6>Ա<EFBFBD><D4B1><EFBFBD>и<EFBFBD><D0B8><EFBFBD>ȷ<EFBFBD>Ŀ<EFBFBD><C4BF>ơ<EFBFBD>

4. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>ʵ<EFBFBD><CAB5>ϸ<EFBFBD>ڡ<EFBFBD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD> Person <20><><EFBFBD><EFBFBD>װ name<6D><65>gender<65><72>age <20><><EFBFBD><EFBFBD><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD>ֻ<EFBFBD><D6BB>ͨ<EFBFBD><CDA8> get() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȡһ<C8A1><D2BB> Person <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> name <20><><EFBFBD>Ժ<EFBFBD> gender <20><><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD>޷<EFBFBD><DEB7><EFBFBD>ȡ age <20><><EFBFBD>ԣ<EFBFBD><D4A3><EFBFBD><EFBFBD><EFBFBD> age <20><><EFBFBD>Կ<EFBFBD><D4BF>Թ<EFBFBD> work() <20><><EFBFBD><EFBFBD>ʹ<EFBFBD>á<EFBFBD>

ע<EFBFBD>⵽ gender <20><><EFBFBD><EFBFBD>ʹ<EFBFBD><CAB9> int <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͽ<EFBFBD><CDBD>д洢<D0B4><E6B4A2><EFBFBD><EFBFBD>װʹ<D7B0><CAB9><EFBFBD>û<EFBFBD>ע<EFBFBD>ⲻ<EFBFBD><E2B2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><CAB5>ϸ<EFBFBD>ڡ<EFBFBD><DAA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>޸<EFBFBD>ʹ<EFBFBD>õ<EFBFBD><C3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>Ҳ<EFBFBD><D2B2><EFBFBD><EFBFBD><EFBFBD>ڲ<EFBFBD>Ӱ<EFBFBD><D3B0><EFBFBD>ͻ<EFBFBD><CDBB>˴<EFBFBD><CBB4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>½<EFBFBD><C2BD>С<EFBFBD>

```java
public class Person {
    private String name;
    private int gender;
    private int age;

    public String getName() {
        return name;
    }

    public String getGender() {
        return gender == 0 ? "man" : "woman";
    }

    public void work() {
        if(18 <= age && age <= 50) {
            System.out.println(name + " is working very hard!");
        } else {
            System.out.println(name + " can't work!");
        }
    }
}
```

## 2. <20>̳<EFBFBD>

<EFBFBD>̳<EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD> **is-a** <20><>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Cat <20><> Animal <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB> is-a <20><>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD>˿<EFBFBD><CBBF>Խ<EFBFBD> Cat <20>̳<EFBFBD><CCB3><EFBFBD> Animal<61><6C><EFBFBD>Ӷ<EFBFBD><D3B6><EFBFBD><EFBFBD><EFBFBD> Animal <20><> private <20><><EFBFBD><EFBFBD><EFBFBD>Ժͷ<D4BA><CDB7><EFBFBD><EFBFBD><EFBFBD>

Cat <20><><EFBFBD>Ե<EFBFBD><D4B5><EFBFBD> Animal <20><>ʹ<EFBFBD>ã<EFBFBD>Ҳ<EFBFBD><D2B2><EFBFBD>ǿ<EFBFBD><C7BF><EFBFBD>ʹ<EFBFBD><CAB9> Animal <20><><EFBFBD><EFBFBD> Cat <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ **<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ת<EFBFBD><EFBFBD>**<2A><>

<EFBFBD>̳<EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>滻ԭ<EFBFBD>򣺵<EFBFBD>һ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD>ܹ<EFBFBD><EFBFBD>滻<EFBFBD>κ<EFBFBD><EFBFBD>䳬<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>ž<EFBFBD><EFBFBD><EFBFBD> is-a <20><>ϵ<EFBFBD><CFB5>

```java
Animal animal = new Cat();
```

## 3. <20><>̬

<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD>Ҫָ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>װ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ָ̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ж<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><EFBFBD><EFBFBD>ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڼ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>

<EFBFBD><EFBFBD>̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1. <20>̳У<CCB3>2. <20><><EFBFBD>Ǹ<EFBFBD><C7B8>෽<EFBFBD><E0B7BD><EFBFBD><EFBFBD>3. <20><><EFBFBD><EFBFBD>ת<EFBFBD>͡<EFBFBD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>У<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣨInstrument<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ࣺWind <20><> Percussion<6F><6E><EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><C7B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> play() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> main() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ø<EFBFBD><C3B8><EFBFBD> Instrument <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Wind <20><> Percussion <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Instrument <20><><EFBFBD>õ<EFBFBD><C3B5><EFBFBD> play() <20><><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1><EFBFBD><EFBFBD>ִ<EFBFBD><D6B4>ʵ<EFBFBD><CAB5><EFBFBD><EFBFBD><EFBFBD>ö<EFBFBD><C3B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> play() <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> Instrument <20><><EFBFBD>ķ<EFBFBD><C4B7><EFBFBD><EFBFBD><EFBFBD>

```java
public class Instrument {
    public void play() {
        System.out.println("Instument is playing...");
    }
}

public class Wind extends Instrument {
    public void play() {
        System.out.println("Wind is playing...");
    }
}

public class Percussion extends Instrument {
    public void play() {
        System.out.println("Percussion is playing...");
    }
}

public class Music {
    public static void main(String[] args){
        List<Instrument> instruments = new ArrayList<>();
        instruments.add(new Wind());
        instruments.add(new Percussion());
        for(Instrument instrument : instruments){
            instrument.play();
        }
    }
}

```



# UML

## 1. <20><>ͼ

**1.1 <20>̳<EFBFBD><CCB3><EFBFBD><EFBFBD><EFBFBD>**

<EFBFBD>̳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ: <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>generalize<7A><65><EFBFBD><EFBFBD>ʵ<EFBFBD>֣<EFBFBD>realize<7A><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ is-a <20><>ϵ<EFBFBD><CFB5>

<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ(generalization)

<EFBFBD>Ӿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>м̳<EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/29badd92-109f-4f29-abb9-9857f5973928.png)

<EFBFBD><EFBFBD> ʵ<>ֹ<EFBFBD>ϵ(realize)

<EFBFBD>ӳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߽ӿ<EFBFBD><EFBFBD>м̳<EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/4b16e1d3-3a60-472c-9756-2f31b1c48abe.png)

**1.2 <20><><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><CDB2><EFBFBD>**

<EFBFBD><EFBFBD> <20>ۺϹ<DBBA>ϵ(aggregation)

<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD>ֲ<EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>岻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˲<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>ǻ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>ʾ B <20><> A <20><><EFBFBD>ɣ<EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/34259bb8-ca3a-4872-8771-9e946782d9c3.png)


<EFBFBD><EFBFBD> <20><><EFBFBD>Ϲ<EFBFBD>ϵ(composition)

<EFBFBD>;ۺϲ<EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>岻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˲<EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>繫˾<EFBFBD>Ͳ<EFBFBD><EFBFBD>ţ<EFBFBD><EFBFBD><EFBFBD>˾û<EFBFBD>˲<EFBFBD><EFBFBD>žͲ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ˡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǹ<EFBFBD>˾<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ھۺϹ<EFBFBD>ϵ<EFBFBD>ˣ<EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>˾û<EFBFBD><EFBFBD>Ա<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/7dda050d-ac35-4f47-9f51-18f18ed6fa9a.png)

**1.3 <20>໥<EFBFBD><E0BBA5>ϵ**

<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ(association)

<EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>־<EFBFBD>̬<EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><EFBFBD>̵<EFBFBD>״̬<EFBFBD>޹أ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD>Ϳ<EFBFBD><EFBFBD><EFBFBD>ȷ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1 <20><> 1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 1<><31><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD>ѧУ<D1A7><D0A3><EFBFBD><EFBFBD>һ<EFBFBD>ֹ<EFBFBD><D6B9><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5>һ<EFBFBD><D2BB>ѧУ<D1A7><D0A3><EFBFBD><EFBFBD><EFBFBD>кܶ<D0BA>ѧ<EFBFBD><D1A7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ѧ<EFBFBD><D1A7>ֻ<EFBFBD><D6BB><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ѧУ<D1A7><D0A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD>ֶ<EFBFBD><D6B6><EFBFBD>һ<EFBFBD>Ĺ<EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>п<EFBFBD>ʼ֮ǰ<D6AE>Ϳ<EFBFBD><CDBF><EFBFBD>ȷ<EFBFBD><C8B7><EFBFBD><EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/4ccd294c-d6b2-421b-839e-d88336ff5fb7.png)

<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ(dependency)

<EFBFBD>͹<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><EFBFBD>ͬ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>й<EFBFBD><D0B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>õġ<C3B5>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD>Ĺ<EFBFBD><C4B9><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߷<EFBFBD><DFB7><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>롣˫<EBA1A3><CBAB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱһ<CAB1>ֲ<EFBFBD><D6B2>õ<EFBFBD><C3B5><EFBFBD><EFBFBD>ơ<EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/47ca2614-509f-476e-98fc-50ec9f9d43c0.png)


## 2. ʱ<><CAB1>ͼ

**2.1 <20><><EFBFBD><EFBFBD>**

ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˶<EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD>䴫<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ˳<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ע<EFBFBD><EFBFBD><EFBFBD>Ƕ<EFBFBD><EFBFBD>󣩣<EFBFBD><EFBFBD>Ӷ<EFBFBD>Ѱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

**2.2 <20><><EFBFBD><EFBFBD>֮սʱ<D5BD><CAB1>ͼ**

<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>±<EFBFBD>ʾʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽ<EFBFBD><EFBFBD><EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/80c5aff8-fc46-4810-aeaa-215b5c60a003.png)

<EFBFBD>ɼ<EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֪<EFBFBD><EFBFBD>ÿ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>²<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

```java
publc class <20><><EFBFBD><EFBFBD> {
   public void Ӧս();
}

publc class  <20><><EFBFBD><EFBFBD> {
  public void  <20>ⶨ<EFBFBD><E2B6A8><EFBFBD><EFBFBD>();
  public void  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ();
  private void <20>趫<EFBFBD><E8B6AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>();
}

public class <20><><EFBFBD><EFBFBD> {
    public void  <20><><EFBFBD><EFBFBD><EFBFBD>G<EFBFBD><47>();
}

public class <20>ŷ<EFBFBD> {
   public void  <20><><EFBFBD>ؾ<EFBFBD><D8BE><EFBFBD>ǰ<EFBFBD><C7B0>();
}

public class <20><>Ȩ {
   public void  <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>();
}
```

**2.3 <20>ͼ<EEB6AF><CDBC>ʱ<EFBFBD><CAB1>ͼ֮<CDBC><D6AE><EFBFBD>Ĺ<EFBFBD>ϵ**

<EFBFBD>ͼʾ<EFBFBD><EFBFBD><EFBFBD>û<EFBFBD><EFBFBD>ĽǶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD>ǴӼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĽǶȣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

**2.4 <20><>ͼ<EFBFBD><CDBC>ʱ<EFBFBD><CAB1>ͼ<EFBFBD>Ĺ<EFBFBD>ϵ**

<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>ľ<EFBFBD>̬<EFBFBD>ṹ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵͳ<EFBFBD>Ķ<EFBFBD>̬<EFBFBD><EFBFBD>Ϊ<EFBFBD><EFBFBD>

**2.5 ʱ<><CAB1>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>**

<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/25b8adad-2ef6-4f30-9012-c306b4e49897.png)

<EFBFBD>ڻ<EFBFBD>ͼʱ<EFBFBD><EFBFBD>Ӧ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ԭ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>

1. <20>ѽ<EFBFBD><D1BD><EFBFBD>Ƶ<EFBFBD><C6B5><EFBFBD>Ķ<EFBFBD><C4B6>󾡿<EFBFBD><F3BEA1BF>ܵؿ<DCB5>£<EFBFBD><C2A3>

2. <20>ѳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><CAB1>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߡ<EFBFBD>

<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߴӶ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ֹ

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/b7b0eac6-e7ea-4fb6-8bfb-95fec6f235e2.png)

<EFBFBD><EFBFBD> <20><>Ϣ

<EFBFBD><EFBFBD><EFBFBD><EFBFBD>֮<EFBFBD><EFBFBD><EFBFBD>Ľ<EFBFBD><EFBFBD><EFBFBD>ʽͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>ʵ<EFBFBD>ֵġ<EFBFBD>

<EFBFBD><EFBFBD>Ϣ<EFBFBD><EFBFBD>4<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>

1\. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD>첽<EFBFBD><ECB2BD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/a13b62da-0fa8-4224-a615-4cadacc08871.png)

2\. ͬ<><CDAC><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ֮<CFA2><D6AE><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>ͣ<EFBFBD><EFBFBD><EEB6AF><EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>Ӧ<EFBFBD><D3A6>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/33821037-dc40-4266-901c-e5b38e618426.png)

3\. <20>첽<EFBFBD><ECB2BD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ֮<CFA2><D6AE><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ȴ<EFBFBD><C8B4><EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/dec6c6cc-1b5f-44ed-b8fd-464fcf849dac.png)

4\. <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>

<EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD>

<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϵķ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʾ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD>䴦<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>״̬<EFBFBD><EFBFBD>

![](https://github.com/CyC2018/InterviewNotes/blob/master/pics/6ab5de9b-1c1e-4118-b2c3-fb6c7ed7de6f.png)


# <20>ο<EFBFBD><CEBF><EFBFBD><EFBFBD><EFBFBD>

- Java <20><><EFBFBD><EFBFBD>˼<EFBFBD><CBBC>

- [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƶ<EFBFBD>SOLIDԭ<EFBFBD><EFBFBD>](http://www.cnblogs.com/shanyou/archive/2009/09/21/1570716.html)

- [<EFBFBD><EFBFBD><EFBFBD><EFBFBD>UML<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ](http://design-patterns.readthedocs.io/zh_CN/latest/read_uml.html#generalization)

- [UMLϵ<EFBFBD>С<EFBFBD><EFBFBD><EFBFBD>ʱ<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>˳<EFBFBD><EFBFBD>ͼ<EFBFBD><EFBFBD>sequence diagram](http://www.cnblogs.com/wolf-sun/p/UML-Sequence-diagram.html)

- [<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>------<2D><>װ<EFBFBD><D7B0><EFBFBD>̳С<CCB3><D0A1><EFBFBD>̬](http://blog.csdn.net/jianyuerensheng/article/details/51602015)