diff --git a/.classpath b/.classpath
deleted file mode 100644
index 1938c4d..0000000
--- a/.classpath
+++ /dev/null
@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
-		<attributes>
-			<attribute name="owner.project.facets" value="java"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="output" path="build/classes"/>
-</classpath>
diff --git a/.project b/.project
deleted file mode 100644
index 17f7e09..0000000
--- a/.project
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>JavaCodeAcc</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-		<buildCommand>
-			<name>org.eclipse.wst.common.project.facet.core.builder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.wst.common.project.facet.core.nature</nature>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>
diff --git a/README.md b/README.md
index a87ef9a..0b311fc 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Java代码积累：**[并发](./README.md/#concurrency) [设计模式](./README.
 - [演示线程的生命周期](./src/concurrency/ThreadLifeCycle.java)
 - [生产者-消费者](./src/concurrency/ProducerAndConsumer.java)
 
-## design pattern
+## design pattern 参考《大话设计模式》
 - [简单工厂模式](./src/designpattern/factory/simple/Calculator.java)
 ### 创建型模式
 - [工厂方法模式](./src/designpattern/factory/method/FactoryClient.java)
@@ -42,12 +42,12 @@ Java代码积累：**[并发](./README.md/#concurrency) [设计模式](./README.
 ## using containers
 - [利用迭代器实现反转](./src/containers/Reverse.java)
 
-## tools
-- [@Todo 利用注解、反射实现一个小工具]()
-- [@Todo 批量修改文件后缀名]()
-
 ## util
 - [StringUtil类 - 封装常用的String方法](./src/util/StringUtil.java)
 
 ## basic
 - [正则表达式使用方式](./src/basic/UsingRegex.java)
+
+## 如果有帮到你，欢迎随意打赏，感谢～
+![微信支付](https://raw.githubusercontent.com/echoTheLiar/JavaCodeAcc/master/wechatpay.JPG)
+![支付宝](https://raw.githubusercontent.com/echoTheLiar/JavaCodeAcc/master/alipay.JPG)
diff --git a/alipay.JPG b/alipay.JPG
new file mode 100644
index 0000000..714155f
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diff --git a/wechatpay.JPG b/wechatpay.JPG
new file mode 100644
index 0000000..0478ac7
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