update png

content/电子书/11-11.md

@@ -3,5 +3,5 @@ title: "《双 11 · 一场技术的决战》"
 date: 2017-12-01
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/11-11/
-image: "images/13.jpg"
+image: "images/13.png"
 ---

content/电子书/2017-technical-review.md

@@ -3,5 +3,5 @@ title: "《2017 技术大检阅》"
 date: 2018-08-01
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/2017-technical-review/
-image: "images/03.jpg"
+image: "images/03.png"
 ---

content/电子书/ai4me.md

@@ -3,5 +3,5 @@ title: "《人工智能，为我所用》"
 date: 2017-12-28
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/ai4me/
-image: "images/08.jpg"
+image: "images/08.png"
 ---
\ No newline at end of file

content/电子书/application-architecture.md

@@ -3,5 +3,5 @@ title: "《互联网应用架构面面观》"
 date: 2017-12-27
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/application-architecture/
-image: "images/07.jpg"
+image: "images/07.png"
 ---

content/电子书/blockchain-intro.md

@@ -3,5 +3,5 @@ title: "《深入浅出区块链》"
 date: 2017-12-30
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/blockchain-intro/
-image: "images/18.jpg"
+image: "images/18.png"
 ---

content/电子书/career-guide-4-AI.md

@@ -3,5 +3,5 @@ title: "《AI 工程师职业指南》"
 date: 2017-12-24
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/career-guide-4-AI/
-image: "images/04.jpg"
+image: "images/04.png"
 ---

content/电子书/cloud-computing.md

@@ -3,5 +3,5 @@ title: "《云计算演进与应用》"
 date: 2017-12-28
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/cloud-computing/
-image: "images/06.jpg"
+image: "images/06.png"
 ---

content/电子书/cpp-update.md

@@ -3,5 +3,5 @@ title: "《关于 C++ 你应该更新的知识》"
 date: 2017-12-10
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/cpp-update/
-image: "images/10.jpg"
+image: "images/10.png"
 ---

content/电子书/distributed-DB.md

@@ -3,5 +3,5 @@ title: "《分布式数据库》"
 date: 2017-12-11
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/distributed-DB/
-image: "images/11.jpg"
+image: "images/11.png"
 ---

content/电子书/docker-skills.md

@@ -3,5 +3,5 @@ title: "《容器技术经验谈》"
 date: 2017-12-15
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/docker-skills/
-image: "images/15.jpg"
+image: "images/15.png"
 ---

content/电子书/fe.md

@@ -3,5 +3,5 @@ title: "《前端开发创新实践》"
 date: 2017-12-12
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/fe/
-image: "images/12.jpg"
+image: "images/12.png"
 ---

content/电子书/frontier-ai.md

@@ -3,5 +3,5 @@ title: "《人工智能学术前沿》"
 date: 2017-12-09
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/frontier-ai/
-image: "images/09.jpg"
+image: "images/09.png"
 ---

content/电子书/iot-stack.md

@@ -3,5 +3,5 @@ title: "《物联网开发技术栈》"
 date: 2017-12-19
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/iot-stack/
-image: "images/19.jpg"
+image: "images/19.png"
 ---

content/电子书/miniapp.md

@@ -3,5 +3,5 @@ title: "《微信小程序深度解析》"
 date: 2017-12-16
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/miniapp/
-image: "images/16.jpg"
+image: "images/16.png"
 ---

content/电子书/mobile-dev.md

@@ -3,5 +3,5 @@ title: "《移动开发十年》"
 date: 2017-12-20
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/10-years-of-mobile-dev/
-image: "images/20.jpg"
+image: "images/20.png"
 ---
\ No newline at end of file

content/电子书/practice-of-big-data.md

@@ -3,5 +3,5 @@ title: "《大数据技术深度实践》"
 date: 2017-12-14
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/practice-of-big-data/
-image: "images/14.jpg"
+image: "images/14.png"
 ---

content/电子书/tech-vision.md

@@ -3,5 +3,5 @@ title: "《技术视野》"
 date: 2017-12-17
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/tech-vision/
-image: "images/17.jpg"
+image: "images/17.png"
 ---

content/电子书/vr-ar.md

@@ -3,5 +3,5 @@ title: "《VR 与 AR 开发实战》"
 date: 2017-12-25
 subtitle: "电子书"
 link: https://codechina.gitcode.host/programmer/vr-ar/
-image: "images/05.jpg"
+image: "images/05.png"
 ---

content/精华本/2016.md

@@ -3,5 +3,5 @@ title: "《程序员》杂志 · 2016 精华本"
 date: 2016-12-31
 subtitle: "精华本"
 link: https://codechina.gitcode.host/programmer/2016/
-image: "images/01.jpg"
+image: "images/01.png"
 ---

content/精华本/2017.md

@@ -3,5 +3,5 @@ title: "《程序员》杂志 · 2017 精华本"
 date: 2017-12-31
 subtitle: "精华本"
 link: https://codechina.gitcode.host/programmer/2017/
-image: "images/02.jpg"
+image: "images/02.png"
 ---

layouts/partials/head.html

@@ -12,7 +12,7 @@
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static/js/b3afecf7e5.js

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