182 lines
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182 lines
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<li class="toctree-l1"><a class="reference internal" href="invoking.html">调用方法</a></li>
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<li class="toctree-l1 current"><a class="current reference internal" href="#">处理消息</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="#id3">定义处理程序</a></li>
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<li class="toctree-l2"><a class="reference internal" href="#id4">注册处理程序</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="#add-handler">使用 add_handler()</a></li>
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<li><a href="../index.html" class="icon icon-home"></a> »</li>
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<div class="section" id="id1">
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<h1>处理消息<a class="headerlink" href="#id1" title="永久链接至标题">¶</a></h1>
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<p>手动调用 <a class="reference internal" href="invoking.html"><span class="doc">API 方法</span></a> 非常方便，但是如何让程序在新消息到达时做出反应呢？
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此页面将告诉您 Telethon 如何处理更新以及如何在 Telethon 中处理此类事件。让我们来看看它们是如何工作的。</p>
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<div class="contents local topic" id="id2">
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<p class="topic-title">目录</p>
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<ul class="simple">
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<li><p><a class="reference internal" href="#id3" id="id5">定义处理程序</a></p></li>
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<li><p><a class="reference internal" href="#id4" id="id6">注册处理程序</a></p></li>
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</ul>
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<div class="section" id="id3">
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<h2>定义处理程序<a class="headerlink" href="#id3" title="永久链接至标题">¶</a></h2>
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<p>首先您需要在 <a class="reference internal" href="../api/handlers.html"><span class="doc">Handlers</span></a> 中找到需要处理的事件的处理程序。</p>
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<p>每个处理程序处理特定事件。支持同一事件注册多个回调函数。</p>
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</div>
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<div class="section" id="id4">
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<h2>注册处理程序<a class="headerlink" href="#id4" title="永久链接至标题">¶</a></h2>
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<div class="section" id="add-handler">
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<h3>使用 add_handler()<a class="headerlink" href="#add-handler" title="永久链接至标题">¶</a></h3>
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<p>使用 <code class="xref py py-meth docutils literal notranslate"><span class="pre">add_handler()</span></code> 方法注册新的处理程序：</p>
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<div class="highlight-python notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">telethon.sync</span> <span class="kn">import</span> <span class="n">TelegramClient</span><span class="p">,</span> <span class="n">events</span>
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<span class="n">app</span> <span class="o">=</span> <span class="n">Client</span><span class="p">(</span><span class="s2">"my_account"</span><span class="p">,</span> <span class="n">api_id</span><span class="p">,</span> <span class="n">api_hash</span><span class="p">)</span>
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<span class="k">async</span> <span class="k">def</span> <span class="nf">handler</span><span class="p">(</span><span class="n">context</span><span class="p">):</span>
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<span class="nb">print</span><span class="p">(</span><span class="n">context</span><span class="o">.</span><span class="n">text</span><span class="p">)</span>
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<span class="n">app</span><span class="o">.</span><span class="n">add_event_handler</span><span class="p">(</span><span class="n">handler</span><span class="p">,</span> <span class="n">events</span><span class="o">.</span><span class="n">NewMessage</span><span class="p">(</span><span class="o">**</span><span class="n">args</span><span class="p">))</span>
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<span class="n">app</span><span class="o">.</span><span class="n">run_until_disconnected</span><span class="p">()</span>
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</pre></div>
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