diff --git a/Day66-75/网络爬虫和相关工具.md b/Day66-75/01.网络爬虫和相关工具.md
similarity index 100%
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rename to Day66-75/01.网络爬虫和相关工具.md
diff --git a/Day66-75/数据采集和解析.md b/Day66-75/02.数据采集和解析.md
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rename to Day66-75/02.数据采集和解析.md
diff --git a/Day66-75/存储数据.md b/Day66-75/03.存储数据.md
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diff --git a/Day66-75/并发下载.md b/Day66-75/04.并发下载.md
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rename to Day66-75/04.并发下载.md
diff --git a/Day66-75/表单交互和验证码处理.md b/Day66-75/05.解析动态内容.md
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diff --git a/Day66-75/数据清洗.md b/Day66-75/07.数据清洗.md
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diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -249,25 +249,25 @@
 
 ### Day66~75 - [爬虫](./Day66-75)
 
-#### Day66 - [网络爬虫和相关工具](./Day66-75/网络爬虫和相关工具.md)
+#### Day66 - [网络爬虫和相关工具](./Day66-75/01.网络爬虫和相关工具.md)
 
-#### Day67 - [数据采集和解析](./Day66-75/数据采集和解析.md)
+#### Day67 - [数据采集和解析](./Day66-75/02.数据采集和解析.md)
 
-#### Day68 - [缓存数据](./Day66-75/缓存数据.md)
+#### Day68 - [缓存数据](./Day66-75/03.缓存数据.md)
 
-#### Day69 - [并发下载](./Day66-75/并发下载.md)
+#### Day69 - [并发下载](./Day66-75/04.并发下载.md)
 
-#### Day70 - [解析动态内容](./Day66-75/解析动态内容.md)
+#### Day70 - [解析动态内容](./Day66-75/05.解析动态内容.md)
 
-#### Day71 - [表单交互和验证码处理](./Day66-75/表单交互和验证码处理.md)
+#### Day71 - [表单交互和验证码处理](./Day66-75/06.表单交互和验证码处理.md)
 
-#### Day72 - [爬虫中的陷阱](./Day66-75/爬虫中的陷阱.md)
+#### Day72 - [ 数据清洗](./Day66-75/07.数据清洗.md)
 
-#### Day73 - [Scrapy的应用(1)](./Day66-75/Scrapy的应用1.md)
+#### Day73 - [Scrapy的应用(1)](./Day66-75/Scrapy的应用01.md)
 
-#### Day74 - [Scrapy的应用(2)](./Day66-75/Scrapy的应用2.md)
+#### Day74 - [Scrapy的应用(2)](./Day66-75/Scrapy的应用02.md)
 
-#### Day75 - [Scrapy的应用(3)](./Day66-75/Scrapy的应用3.md)
+#### Day75 - [Scrapy的应用(3)](./Day66-75/Scrapy的应用03.md)
 
 ### Day76~90 - [数据处理和机器学习](./Day76-90)