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20191205 Update Slides & Fix Bugs
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‎slides/20191121-Python-selenium/index.html‎

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<section>
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<h1>Python V</h1>
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<h2>selenium</h2>
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<h6>2018/11/21 林弘祥</h6>
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<h6>2019/11/21 林弘祥</h6>
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</section>
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<section>
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<h2>課程簡介</h2>

‎slides/20191128-HTML/index.html‎

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<section>
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<section>
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<h1>HTML</h1>
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<h5>2018/11/28</h5>
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<h5>2019/11/28</h5>
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<h5>林弘祥</h5>
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</section>
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<section>

‎slides/20191205-Python-File/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8">
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<title>Python VI: File</title>
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<link rel="icon" type="image/x-icon" href="../../images/favicon.ico">
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<link rel="shortcut icon" type="image/x-icon" href="../../images/favicon.ico">
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<meta name="apple-mobile-web-app-capable" content="yes" />
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<meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no, minimal-ui">
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<link rel="stylesheet" href="../css/reveal.css">
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<link rel="stylesheet" href="../css/theme/black.css" id="theme">
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<!-- Code syntax highlighting -->
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<link rel="stylesheet" href="../lib/css/zenburn.css">
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<!-- Printing and PDF exports -->
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<script>
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var link = document.createElement( 'link' );
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link.rel = 'stylesheet';
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link.type = 'text/css';
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link.href = window.location.search.match( /print-pdf/gi ) ? '../css/print/pdf.css' : '../css/print/paper.css';
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document.getElementsByTagName( 'head' )[0].appendChild( link );
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</script>
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<!--[if lt IE 9]>
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<script src="lib/js/html5shiv.js"></script>
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<![endif]-->
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</head>
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<body>
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<div class="reveal">
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<div class="slides">
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<!-- Intro -->
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<section>
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<section>
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<h1>Python</h1>
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<h2>File I/O</h2>
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<h5>2019/12/5 林弘祥</h5>
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</section>
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<section>
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<h2>課程簡介</h2>
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<ul>
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<li>File Object</li>
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<li>JSON</li>
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<li>CSV</li>
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</ul>
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</section>
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</section>
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<!-- File Object -->
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<section>
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<h2>File Object</h2>
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<pre><code class="python">FileObject = open('FILENAME', MODE, BUFFERING, ENCODING)</code></pre>
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</section>
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<section>
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<section data-markdown>
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<script type="text/template">
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### 開啟 / 關閉
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```python
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# 開啟 test.txt 檔案
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File = open('test.txt', 'r') # 'r': open for reading (default)
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# 關閉檔案
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File.close()
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```
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</script>
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</section>
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<section data-markdown>
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<script type="text/template">
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### 模式設定
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| MODE | Readable | Writable | Overwrites |
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| :-: | :-: | :-: | :-: |
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| r | O | | |
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| w | | o | o |
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| x | | o | |
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| a | o | o | |
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</script>
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</section>
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<section data-markdown>
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<script type="text/template">
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* In 'x' mode, if file exist, raise FileExistsError
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* File mode: 'b', 't', '+'
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- 'b': Binary Mode
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- 't': Text Mode
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- '+': Open a disk file for updating (read / write)
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</script>
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</section>
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<section data-markdown>
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<script type="text/template">
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### 自動進行資源管理
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```python
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with open(FILENAME) as FILE:
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# DOSOMETHING AT HEAR
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```
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* 使用完後系統會自己回收相關資源
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* 避免資源占用, 互鎖...等錯誤
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</script>
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</section>
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</section>
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<!-- I/O -->
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<section>
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<section data-markdown>
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<script type="text/template">
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### 讀 / 寫
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```python
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# 嘗試讀入COUNT位資料, 若沒設COUNT, 嘗試讀到能讀的最大量
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FILE.read(COUNT)
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# 嘗試讀入一行資料
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FiILE.readline()
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# 嘗試讀入COUNT行資料, 若沒設COUNT, 嘗試讀到能讀的最大量
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FiILE.readlines(COUNT)
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# 嘗試寫入資料
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FILE.write(STRING)
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# 嘗試寫入多行資料
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FiILE.writelines(LIST)
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```
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</script>
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</section>
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<!-- Etc. -->
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<section data-markdown>
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<script type="text/template">
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### 其他操作
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* .tell(): 目前游標位置
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* .seek(...): 移動游標到...位置
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* .name: 檔案名稱
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* .mode: 目前操作模式
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* .closed: 檔案是否關閉
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</script>
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</section>
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</section>
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<!-- JSON -->
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<section>
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<section>
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<h2>使用 JSON 格式進行檔案存取</h2>
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<pre><code class="python">import json</code></pre>
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</section>
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<section data-markdown>
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<script type="text/template">
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```python
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import json
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with open('test.txt', 'w') as File:
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Data = {'NAME': 'OWO', 'LIST': [1, 3, 4], 'FLOAT': 3.14}
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json.dump(Data, File)
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with open('test.txt', 'r') as File:
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Data = json.load(File)
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print(type(Data), Data)
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print(type(Data['LIST']), Data['LIST'])
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```
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</script>
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</section>
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</section>
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<!-- CSV -->
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<section>
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<section>
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<h2>使用 CSV 格式進行檔案存取</h2>
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<pre><code class="python">import csv</code></pre>
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</section>
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</section>
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</div>
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</div>
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<script src="../lib/js/head.min.js"></script>
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<script src="../js/reveal.js"></script>
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<script>
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// Full list of configuration options available at:
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// https://github.com/hakimel/reveal.js#configuration
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Reveal.initialize({
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controls: true,
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progress: true,
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history: true,
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center: true,
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transition: 'slide', // none/fade/slide/convex/concave/zoom
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// Optional reveal.js plugins
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dependencies: [
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{ src: '../lib/js/classList.js', condition: function() { return !document.body.classList; } },
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{ src: '../plugin/markdown/marked.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
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{ src: '../plugin/markdown/markdown.js', condition: function() { return !!document.querySelector( '[data-markdown]' ); } },
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{ src: '../plugin/highlight/highlight.js', async: true, condition: function() { return !!document.querySelector( 'pre code' ); }, callback: function() { hljs.initHighlightingOnLoad(); } },
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{ src: '../plugin/zoom-js/zoom.js', async: true },
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{ src: '../plugin/notes/notes.js', async: true }
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]
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});
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</script>
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</body>
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</html>

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