add state pattern

noxliu · Dec 4, 2019 · 890429f · 890429f
1 parent 7c723e3
commit 890429f
Show file tree

Hide file tree

Showing 4 changed files with 29 additions and 2 deletions.
diff --git a/images/state_pattern.png b/images/state_pattern.png
diff --git a/state/README.MD b/state/README.MD
@@ -0,0 +1,27 @@
+### 状态模式（State Pattern）
+
+##### 行为模式（Behavioural Pattern）
+
+#### 定义
+
+***Ties object circumstances to its behavior, allowing the object to behave in different ways based upon its internal state.***
+
+***定义一个操作中的算法的骨架，而将一些步骤延迟到子类中，使得子类可以不改变一个算法的结构即可重定义该算法的某些特定步骤。***
+
+![Visitor Pattern UML](../images/template_method.png)
+
+
+
+### 优点
+1. 封装和控制了业务的不变部分。
+2. 实现代码复用，将公共功能部分代码抽取出来，更易于维护。
+
+### 例子分析
+
+##### 下载工具案例
+
+### 参考文档：
+
+https://en.wikipedia.org/wiki/Template_method_pattern
+
+https://dzone.com/articles/design-patterns-template-method
diff --git a/state/state.go → state/stateExample/state/state.go b/state/state.go → state/stateExample/state/state.go
@@ -1,4 +1,4 @@
-package main
+package state
 
 import "fmt"
 

diff --git a/state/state2.go → state/stateExample/state/state2.go b/state/state2.go → state/stateExample/state/state2.go
@@ -1,4 +1,4 @@
-package main
+package state
 
 import (
 	"fmt"