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<!DOCTYPE html>
<!--[if IEMobile 7 ]><html class="no-js iem7"><![endif]-->
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<!--[if (gt IE 8)|(gt IEMobile 7)|!(IEMobile)|!(IE)]><!--><html class="no-js" lang="en"><!--<![endif]-->
<head>
<link rel="short icon" href="http://softing.qiniudn.com/20140603011448867_easyicon_net_128.ico" type="image/x-ico">
<meta charset="utf-8">
<title>Dreaming</title>
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rel="stylesheet" type="text/css">
</head>
<body>
<header role="banner"><hgroup>
<h1><a href="/">Dreaming</a></h1>
</hgroup></header>
<nav role="navigation"><ul class="subscription" data-subscription="rss">
</ul>
<ul class="main-navigation">
<li >
<a href="/category/it.html">It</a>
</li>
<li >
<a href="/category/life.html">Life</a>
</li>
</ul></nav>
<div id="main">
<div id="content">
<div class="blog-index">
<article>
<header>
<h1 class="entry-title">
<a href="/hui-jia-lu.html">回家路</a>
</h1>
<p class="meta"><time datetime="2014-07-16T00:00:00+08:00" pubdate>Wed 16 July 2014</time></p>
</header>
<div class="entry-content"><h3>就这么又一次开始了回家的旅途</h3>
<p><img alt="就这样开始" src="http://tulparblog.qiniudn.com/lifeIMG_20140711_110306.jpg" /></p>
<h3>在北京转车，得等3个小时，吃了吨开心午餐</h3>
<p><img alt="开心午餐，磨的是时间" src="http://tulparblog.qiniudn.com/lifeIMG_20140711_130640.jpg" /></p>
<h3>两天后的驴友，醒醒吧，还有两天</h3>
<p><img alt="是的，的确很累！！！" src="http://tulparblog.qiniudn.com/lifeIMG_20140713_095127.jpg" /></p>
<h3>吐鲁番，转车，很累，吃到家乡的拉面，很开心</h3>
<p><img alt="虽然，做的不怎么好吃" src="http://tulparblog.qiniudn.com/lifeIMG_20140713_073856.jpg" /></p>
<h3>终于，到家了</h3>
<p><img alt="我家后面" src="http://tulparblog.qiniudn.com/lifeIMG_20140717_135705.jpg" />
<img alt="嗯，就是的" src="http://tulparblog.qiniudn.com/lifeIMG_20140717_135934.jpg" /></p></div>
<footer>
<a rel="full-article" href="/hui-jia-lu.html">Read On ↵</a>
</footer>
</article>
<article>
<header>
<h1 class="entry-title">
<a href="/ge-shi-hua-zi-fu-chuan-shi-jian.html">格式化字符串——时间</a>
</h1>
<p class="meta"><time datetime="2014-07-08T00:00:00+08:00" pubdate>Tue 08 July 2014</time></p>
</header>
<div class="entry-content"><p>之前介绍过<a href="http://tulpar008.github.io/ben-ban-fa-xue-python.html">格式化字符串</a> <br />
本篇专门介绍格式化字符串——时间 </p>
<hr />
<p>所有日期、时间的api都在datetime模块内。</p>
<h5>1. datetime => string</h5>
<div class="highlight"><pre><span class="n">now</span> <span class="o">=</span> <span class="n">datetime</span><span class="p">.</span><span class="n">datetime</span><span class="p">.</span><span class="n">now</span><span class="p">()</span>
<span class="n">now</span><span class="p">.</span><span class="n">strftime</span><span class="p">(</span><span class="err">'</span><span class="o">%</span><span class="n">Y</span><span class="o">-%</span><span class="n">m</span><span class="o">-%</span><span class="n">d</span> <span class="o">%</span><span class="n">H</span><span class="o">:%</span><span class="n">M</span><span class="o">:%</span><span class="n">S</span><span class="err">'</span><span class="p">)</span>
<span class="err">输出</span><span class="mi">2012</span><span class="o">-</span><span class="mo">03</span><span class="o">-</span><span class="mo">05</span> <span class="mi">16</span><span class="o">:</span><span class="mi">26</span><span class="o">:</span><span class="mf">23.870105</span>
</pre></div>
<p>strftime是datetime类的实例方法。</p>
<h5>2. string => datetime</h5>
<div class="highlight"><pre><span class="n">t_str</span> <span class="o">=</span> <span class="err">'</span><span class="mi">2012</span><span class="o">-</span><span class="mo">03</span><span class="o">-</span><span class="mo">05</span> <span class="mi">16</span><span class="o">:</span><span class="mi">26</span><span class="o">:</span><span class="mi">23</span><span class="err">'</span>
<span class="n">d</span> <span class="o">=</span> <span class="n">datetime</span><span class="p">.</span><span class="n">datetime</span><span class="p">.</span><span class="n">strptime</span><span class="p">(</span><span class="n">t_str</span><span class="p">,</span> <span class="err">'</span><span class="o">%</span><span class="n">Y</span><span class="o">-%</span><span class="n">m</span><span class="o">-%</span><span class="n">d</span> <span class="o">%</span><span class="n">H</span><span class="o">:%</span><span class="n">M ...</span></pre></div></div>
<footer>
<a rel="full-article" href="/ge-shi-hua-zi-fu-chuan-shi-jian.html">Read On ↵</a>
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<article>
<header>
<h1 class="entry-title">
<a href="/pythonshi-jian-cao-zuo.html">Python时间操作</a>
</h1>
<p class="meta"><time datetime="2014-07-08T00:00:00+08:00" pubdate>Tue 08 July 2014</time></p>
</header>
<div class="entry-content"><p>所有日期、时间的api都在datetime模块内。 <br />
参考<a href="http://tulpar008.github.io/ge-shi-hua-zi-fu-chuan-shi-jian.html">时间格式化字符串</a></p>
<h3>1. datetime => string</h3>
<div class="highlight"><pre><span class="n">now</span> <span class="o">=</span> <span class="n">datetime</span><span class="p">.</span><span class="n">datetime</span><span class="p">.</span><span class="n">now</span><span class="p">()</span>
<span class="n">now</span><span class="p">.</span><span class="n">strftime</span><span class="p">(</span><span class="err">'</span><span class="o">%</span><span class="n">Y</span><span class="o">-%</span><span class="n">m</span><span class="o">-%</span><span class="n">d</span> <span class="o">%</span><span class="n">H</span><span class="o">:%</span><span class="n">M</span><span class="o">:%</span><span class="n">S</span><span class="err">'</span><span class="p">)</span>
<span class="err">输出</span><span class="mi">2012</span><span class="o">-</span><span class="mo">03</span><span class="o">-</span><span class="mo">05</span> <span class="mi">16</span><span class="o">:</span><span class="mi">26</span><span class="o">:</span><span class="mf">23.870105</span>
</pre></div>
<p>strftime是datetime类的实例方法。</p>
<h3>2. string => datetime</h3>
<div class="highlight"><pre><span class="n">t_str</span> <span class="o">=</span> <span class="err">'</span><span class="mi">2012</span><span class="o">-</span><span class="mo">03</span><span class="o">-</span><span class="mo">05</span> <span class="mi">16</span><span class="o">:</span><span class="mi">26</span><span class="o">:</span><span class="mi">23</span><span class="err">'</span>
<span class="n">d</span> <span class="o">=</span> <span class="n">datetime</span><span class="p">.</span><span class="n">datetime</span><span class="p">.</span><span class="n">strptime</span><span class="p">(</span><span class="n">t_str</span><span class="p">,</span> <span class="err">'</span><span class="o">%</span><span class="n">Y</span><span class="o">-%</span><span class="n">m</span><span class="o">-%</span><span class="n">d</span> <span class="o">%</span><span class="n">H</span><span class="o">:%</span><span class="n">M</span><span class="o">:%</span><span class="n">S</span><span class="err">'</span><span class="p">)</span>
</pre></div>
<p>strptime是datetime类的静态方法 ...</p></div>
<footer>
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</article>
<article>
<header>
<h1 class="entry-title">
<a href="/pythonzhong-raw_inputhe-inputde-yi-tong-dian.html">Python中raw_input和input的异同点</a>
</h1>
<p class="meta"><time datetime="2014-07-08T00:00:00+08:00" pubdate>Tue 08 July 2014</time></p>
</header>
<div class="entry-content"><p>一般软件做的事情主要就是下面几条：<br />
· 接受人的输入。 <br />
· 改变输入。 <br />
· 打印出改变了的输入 <br />
———来自<<a href="http://tulpar008.github.io/ben-ban-fa-xue-python.html">笨办法学Python</a>></p>
<hr />
<h3>相同点</h3>
<p>这两个函数均用来接收输入，上述真理已足以说明它们的重要性，我不赘述了。</p>
<h3>不同点</h3>
<p><strong>1. raw_input() 直接读取控制台的输入（任何类型的输入它都可以接收）。而对于 input() ，它希望能够读取一个合法的 python 表达式，即你输入字符串的时候必须使用引号将它括起来，否则它会引发一个 SyntaxError 。</strong></p>
<div class="highlight"><pre><span class="o">>>></span><span class="n">a</span><span class="o">=</span><span class="nx">raw_input</span><span class="p">(</span><span class="s2">"请输入字符串，不用写引号："</span><span class="p">)</span>
<span class="err">请输入字符串，不用写引号：</span><span class="nx">guoshu</span>
<span class="o">>>></span><span class="n">b</span><span class="o">=</span><span class="nb">input</span><span class="p">(</span><span class="s2">"请输入字符串，不写引号试试："</span><span class="p">)</span>
<span class="err">请输入字符串，不写引号试试：</span><span class="nx">guoshu</span>
<span class="nx">Traceback</span> <span class="p">(</span><span class="nx">most</span> <span class="nx">recent</span> <span class="nb">call</span> <span class="nb">last</span><span class="p">):</span>
<span class="nb">File</span> <span class="s2">"<pyshell#1>"</span><span class="p">,</span> <span class="nb">line</span> <span class="mi">1</span><span class="p">,</span> <span class="k">in</span> <span class="o"><</span><span class="nx">module</span><span class="o">></span>
<span class="n">input_A ...</span></pre></div></div>
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<article>
<header>
<h1 class="entry-title">
<a href="/__init__fang-fa.html">__init__()方法</a>
</h1>
<p class="meta"><time datetime="2014-07-07T00:00:00+08:00" pubdate>Mon 07 July 2014</time></p>
</header>
<div class="entry-content"><h3>首先复习一下,<a href="http://tulpar008.github.io/pythonzhong-__shuang-xia-hua-xian-de-zuo-yong.html">__（双下划线）的作用</a></h3>
<ul>
<li>
<p>Python中默认的成员函数，成员变量都是公开的(public),而且python中没有类似public,private等关键词来修饰成员函数，成员变量。 </p>
</li>
<li>
<p>可有时候需要用到私有变量，因此诞生了__。 </p>
</li>
<li>
<p>变量名或函数名前加上 ”__“两个下划线，那么这个函数或变量就会为私有的了。</p>
</li>
<li>
<p>私有意味着只有内部能使用，对外部隐藏。 </p>
</li>
<li>
<p>在内部，python使用一种 name mangling 技术，将 __membername替换成 _classname__membername来使用。 <br />
在外部，使用原来的私有成员的名字时，会提示找不到。（达到了隐藏的效果） </p>
</li>
</ul>
<hr />
<p>很显然，__init__是个私有函数</p>
<h5>__init__方法在类的一个对象被建立时，马上运行。这个方法可以用来对你的对象做一些你希望的 初始化 。</h5>
<h6>注意，这个名称的开始和结尾都是双下划线。</h6></div>
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<article>
<header>
<h1 class="entry-title">
<a href="/django-fen-ye.html">django 分页</a>
</h1>
<p class="meta"><time datetime="2014-07-07T00:00:00+08:00" pubdate>Mon 07 July 2014</time></p>
</header>
<div class="entry-content"><p>我个人使用gmail的邮件服务器，不过经常会被墙，因此下面讲解使用qq邮箱服务器。</p>
<ol>
<li>首先看看django-pagination</li>
</ol>
<hr />
<h4>settings.py</h4>
<div class="highlight"><pre><span class="n">TEMPLATE_CONTEXT_PROCESSORS</span> <span class="o">=</span> <span class="p">(</span>
<span class="s">"django.contrib.auth.context_processors.auth"</span><span class="p">,</span>
<span class="s">"django.core.context_processors.debug"</span><span class="p">,</span>
<span class="s">"django.core.context_processors.i18n"</span><span class="p">,</span>
<span class="s">"django.core.context_processors.media"</span><span class="p">,</span>
<span class="s">"django.core.context_processors.static"</span><span class="p">,</span>
<span class="s">"django.core.context_processors.tz"</span><span class="p">,</span>
<span class="s">"django.core.context_processors.request"</span><span class="p">,)</span>
<span class="n">MIDDLEWARE_CLASSES</span> <span class="o">=</span> <span class="p">(</span>
<span class="err">'</span><span class="n">django</span><span class="p">.</span><span class="n">middleware</span><span class="p">.</span><span class="n">common</span><span class="p">.</span><span class="n">CommonMiddleware</span><span class="err">'</span><span class="p">,</span>
<span class="err">'</span><span class="n">django</span><span class="p">.</span><span class="n">contrib</span><span class="p">.</span><span class="n">sessions</span><span class="p">.</span><span class="n">middleware</span><span class="p">.</span><span class="n">SessionMiddleware</span><span class="err">'</span><span class="p">,</span>
<span class="err">'</span><span class="n">django</span><span class="p">.</span><span class="n">middleware</span><span class="p">.</span><span class="n">csrf</span><span class="p">.</span><span class="n">CsrfViewMiddleware ...</span></pre></div></div>
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<header>
<h1 class="entry-title">
<a href="/django-shi-yong-you-jian-fu-wu.html">Django 使用邮件服务</a>
</h1>
<p class="meta"><time datetime="2014-07-07T00:00:00+08:00" pubdate>Mon 07 July 2014</time></p>
</header>
<div class="entry-content"><p>我个人使用gmail的邮件服务器，不过经常会被墙，因此下面讲解使用qq邮箱服务器。</p>
<hr />
<h3>django settings.py</h3>
<div class="highlight"><pre><span class="n">DEFAULT_FROM_EMAIL</span><span class="o">=</span><span class="err">'</span><span class="mi">49244564</span><span class="err">@</span><span class="n">qq</span><span class="p">.</span><span class="n">com</span><span class="err">'</span>
<span class="cp">#django 要求这里的“发送者”邮箱必须和超级管理员的邮箱一致，而且不能为空</span>
<span class="n">EMAIL_USE_TLS</span> <span class="o">=</span> <span class="n">True</span>
<span class="n">EMAIL_HOST</span> <span class="o">=</span> <span class="err">'</span><span class="n">smtp</span><span class="p">.</span><span class="n">qq</span><span class="p">.</span><span class="n">com</span><span class="err">'</span>
<span class="n">EMAIL_PORT</span> <span class="o">=</span> <span class="mi">587</span>
<span class="cp">##此处用的是SMTP的SSL加密方式，所以使用587或465端口号，不然可以用25端口。</span>
<span class="n">EMAIL_HOST_USER</span> <span class="o">=</span> <span class="err">'</span><span class="mi">49244564</span><span class="err">@</span><span class="n">qq</span><span class="p">.</span><span class="n">com</span><span class="err">'</span>
<span class="n">EMAIL_HOST_PASSWORD</span> <span class="o">=</span> <span class="err">'</span><span class="n">wodeqqyouxiangmima</span><span class="err">'</span>
</pre></div>
<h3>开启qq邮箱SMTP服务</h3>
<p>设置——账户——开启服务————打勾“POP3/SMTP服务和IMAP/SMTP服务“ </p></div>
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<article>
<header>
<h1 class="entry-title">
<a href="/init__fang-fa.html">init__()方法</a>
</h1>
<p class="meta"><time datetime="2014-07-07T00:00:00+08:00" pubdate>Mon 07 July 2014</time></p>
</header>
<div class="entry-content"><h3>首先复习一下,<a href="http://tulpar008.github.io/pythonzhong-__shuang-xia-hua-xian-de-zuo-yong.html">__（双下划线）的作用</a></h3>
<ul>
<li>
<p>Python中默认的成员函数，成员变量都是公开的(public),而且python中没有类似public,private等关键词来修饰成员函数，成员变量。 </p>
</li>
<li>
<p>可有时候需要用到私有变量，因此诞生了__。 </p>
</li>
<li>
<p>变量名或函数名前加上 ”__“两个下划线，那么这个函数或变量就会为私有的了。</p>
</li>
<li>
<p>私有意味着只有内部能使用，对外部隐藏。 </p>
</li>
<li>
<p>在内部，python使用一种 name mangling 技术，将 __membername替换成 _classname__membername来使用。 <br />
在外部，使用原来的私有成员的名字时，会提示找不到。（达到了隐藏的效果） </p>
</li>
</ul>
<hr />
<p>很显然，__init__是个私有函数</p>
<h5>__init__方法在类的一个对象被建立时，马上运行。这个方法可以用来对你的对象做一些你希望的 初始化 。</h5>
<h6>注意，这个名称的开始和结尾都是双下划线。</h6></div>
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<header>
<h1 class="entry-title">
<a href="/python-shi-li-fang-fa-jing-tai-fang-fa-lei-fang-fa.html">python 实例方法，静态方法，类方法</a>
</h1>
<p class="meta"><time datetime="2014-07-07T00:00:00+08:00" pubdate>Mon 07 July 2014</time></p>
</header>
<div class="entry-content"><h3>实例方法（@郭叔）</h3>
<p>字面意思：实例的方法，即只有实例能使用的方法，相对于类方法和静态方法。</p>
<h5>实例方法的第一个参数默认为self，代指实例。</h5>
<p>如：</p>
<div class="highlight"><pre><span class="n">class</span> <span class="n">Foo</span><span class="o">:</span>
<span class="err">##</span><span class="n">init</span><span class="p">()</span><span class="err">是生成实例时默认调用的实例方法</span><span class="p">,</span><span class="err">用于初始化详细见</span><span class="p">[</span><span class="n">__init__</span><span class="err">方法</span><span class="p">](</span><span class="err">#</span><span class="p">)</span>
<span class="err">###第一个参数默认为</span><span class="n">self</span>
<span class="n">def</span> <span class="n">__init__</span><span class="p">(</span><span class="n">self</span><span class="p">,</span> <span class="n">name</span><span class="p">)</span><span class="o">:</span>
<span class="n">self</span><span class="p">.</span><span class="n">name</span> <span class="o">=</span> <span class="n">name</span>
<span class="n">self</span><span class="p">.</span><span class="n">author</span><span class="o">=</span><span class="s">"Tulpar"</span>
<span class="err">##又一个实例方法</span>
<span class="n">def</span> <span class="n">hi</span><span class="p">(</span><span class="n">self</span><span class="p">)</span><span class="o">:</span>
<span class="n">print</span> <span class="n">self</span><span class="p">.</span><span class="n">name</span>
<span class="n">print</span> <span class="s">"Created by %s"</span><span class="o">%</span><span class="n">self</span><span class="p">.</span><span class="n">author</span>
</pre></div>
<h5>self不是一个关键字，而是约定的写法。也可以换成任意字符串，如'guoshu'</h5>
<div class="highlight"><pre> <span class="err">###第一个参数默认为</span><span class="n">guoshu</span><span class="p">,</span><span class="err">作用和</span><span class="n">self ...</span></pre></div></div>
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<header>
<h1 class="entry-title">
<a href="/pythonzhong-__shuang-xia-hua-xian-de-zuo-yong.html">python中 __（双下划线）的作用</a>
</h1>
<p class="meta"><time datetime="2014-07-07T00:00:00+08:00" pubdate>Mon 07 July 2014</time></p>
</header>
<div class="entry-content"><ul>
<li>
<p>Python中默认的成员函数，成员变量都是公开的(public),而且python中没有类似public,private等关键词来修饰成员函数，成员变量。 </p>
</li>
<li>
<p>可有时候需要用到私有变量，因此诞生了__。 </p>
</li>
<li>
<p>变量名或函数名前加上 ”__“两个下划线，那么这个函数或变量就会为私有的了。</p>
</li>
<li>
<p>私有意味着只有内部能使用，对外部隐藏。 </p>
</li>
<li>
<p>在内部，python使用一种 name mangling 技术，将 __membername替换成 _classname__membername来使用。 <br />
在外部，使用原来的私有成员的名字时，会提示找不到。（达到了隐藏的效果） </p>
</li>
</ul>
<hr />
<div class="highlight"><pre><span class="n">class</span> <span class="n">Tester</span><span class="p">(</span><span class="n">object</span><span class="p">)</span><span class="o">:</span>
<span class="n">__foo</span> <span class="o">=</span> <span class="s">"hi"</span>
<span class="o">>>></span> <span class="n">t</span> <span class="o">=</span> <span class="n">Tester</span><span class="p">()</span>
<span class="o">>>></span> <span class="n">t</span><span class="p">.</span><span class="n">_Tester__foo</span>
<span class="err">'</span><span class="n">hi</span><span class="err">'</span>
</pre></div>
<div class="highlight"><pre><span class="n">class</span> <span class="n">Tester</span><span class="p">(</span><span class="n">object</span><span class="p">)</span><span class="o">:</span>
<span class="p">...</span> <span class="n">def</span> <span class="n">__init__</span><span class="p">(</span><span class="n">self</span><span class="p">)</span><span class="o">:</span>
<span class="p">...</span> <span class="n">self</span><span class="p">.</span><span class="n">__foo</span> <span class="o">=</span> <span class="s">"hi"</span>
<span class="p">...</span>
<span class="o">>>></span> <span class="n">t</span><span class="o">=</span><span class="n">Tester</span><span class="p">()</span>
<span class="o">>>></span><span class="n">t</span><span class="p">.</span><span class="n">_Tester__foo</span>
<span class="err">'</span><span class="n">hi</span><span class="err">'</span>
</pre></div></div>
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