点击上方“菜鸟学Python”，选择“星标”
超级无敌干货第一时间推给你！！！
Python里面的技巧真的是太多了，菜鸟如何假装自己的是高手呢，下面教大家几招快速变成老司机的招数，尤其是在实战的项目中，用上这几招一定让你周围的同事刮目相看，哇这个代码有两把刷子。
1.大量的if-else结构
我们在平时项目的时候会经常遇到大量的if/elif 这样的情况，非常常见，通常我的写法如下，比如一个每周上周的情况:
上面的代码一来比较丑，二来扩展性非常不好，如果我要把一周的排课的顺序调整，需要对代码的结构做很大的调整。如果结构再复杂一点的话更麻烦。
理想的情况是这样,构建一个一周的字典，用字典key来匹配:
代码改写如下:
2.类的成员变量赋值
类里面的变量的设计一定会分私有和公开的，在一开始设计的时候就需要考虑那些变量是要私有的，这在类的内部访问，那些可以公开。
上面这样的设计很明显是没有任何保护的，好一点的设计应该是这样:
3.清楚的异常声明比含蓄的要好
实战项目了遇到异常处理是非常常见的事情，我们很多初学者喜欢偷懒写成这样，主要是图省事：
一旦发生问题，你不知道是什么异常导致的，很难定位！对于异常的处理，应该尽量分一分类，这样写会好一些:
4.巧妙的利用yield
比如一个文件搜索程序，我们要搜索目录下面所有文件包括子目录里面的文件，怎么做呢:
传统的做法是里面函数里面放一个列表来递归存储 搜索的文件名，这样的写法不错，但是不是很老道，也不是很pythonic，有更简便的方法吗，当然有接着往下看这一招。
以上几招非常实用，尤其是刚入门的菜鸟，在真实项目过程中如果能掌握就这几招，应用到项目里面，就可以依葫芦画瓢写出一些很Pythonic的代码，迅速让你的功力大增～～小伙伴还等啥，操练起来。
end
<p style="text-align: left;"><strong style="color: rgb(2, 30, 170);font-size: 15px;letter-spacing: 0.544px;font-family: -apple-system-font, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;white-space: pre-wrap;">近期八大热门：</strong><br /></p><section style="padding-right: 15px;padding-left: 15px;font-size: 15px;letter-spacing: 1px;line-height: 2;"><section data-mpa-template="t" mpa-from-tpl="t" data-darkmode-bgcolor-15923650965579="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15923650965579="rgb(255, 255, 255)" data-darkmode-color-15923650965579="rgb(168, 168, 168)" data-darkmode-original-color-15923650965579="rgb(62, 62, 62)" data-style="color: rgb(62, 62, 62); font-size: 15px; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); font-family: monospace; text-align: left; widows: 1; word-spacing: 2px; caret-color: rgb(255, 0, 0); white-space: pre-wrap;" class="js_darkmode__90" style="letter-spacing: 0.544px;text-align: start;caret-color: rgb(255, 0, 0);white-space: pre-wrap;"><section mpa-from-tpl="t" data-darkmode-bgcolor-15923650965579="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15923650965579="rgb(255, 255, 255)" data-darkmode-color-15923650965579="rgb(168, 168, 168)" data-darkmode-original-color-15923650965579="rgb(62, 62, 62)"><pre data-darkmode-bgcolor-15923650965579="rgb(36, 36, 36)" data-darkmode-original-bgcolor-15923650965579="rgb(255, 255, 255)" data-darkmode-color-15923650965579="rgb(167, 167, 167)" data-darkmode-original-color-15923650965579="rgb(63, 63, 63)" data-style="letter-spacing: 0.544px; 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font-weight: 700; text-align: -webkit-center; background-color: rgb(255, 255, 255); font-size: 16px; color: rgb(62, 62, 62); widows: 1; word-spacing: 2px;" class="js_darkmode__26" style="font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;caret-color: rgb(51, 51, 51);font-size: 16px;color: rgb(63, 63, 63);text-align: start;widows: 1;word-spacing: 1px;line-height: inherit;"><section style="font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;caret-color: rgb(51, 51, 51);font-size: 16px;color: rgb(63, 63, 63);text-align: start;widows: 1;word-spacing: 1px;line-height: inherit;"><pre style="font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;caret-color: rgb(51, 51, 51);font-size: 16px;color: rgb(63, 63, 63);text-align: start;widows: 1;word-spacing: 1px;line-height: inherit;"><section style="font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;caret-color: rgb(51, 51, 51);font-size: 16px;color: rgb(63, 63, 63);text-align: start;widows: 1;word-spacing: 1px;line-height: inherit;"><strong><span style="font-size: 15px;color: rgb(0, 0, 0);">菜鸟编程大本营，现已正式上线！</span></strong></section><p style="font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;caret-color: rgb(51, 51, 51);"><br /></p><p style="font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;caret-color: rgb(51, 51, 51);"><span style="font-size: 15px;">接下来我们将会在该上，为大家<strong>分享优质编程语言里趣味的干货，通俗易懂的实战案例，经验分享，让菜鸟也爱上编程。</strong></span></p><p style="font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;caret-color: rgb(51, 51, 51);"><br /></p><pre style="letter-spacing: 0.544px;caret-color: rgb(51, 51, 51);line-height: inherit;"><section style="margin-right: 8px;margin-left: 8px;padding-right: 0.5em;padding-left: 0.5em;font-family: -apple-system-font, system-ui, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif;letter-spacing: 0.544px;white-space: normal;text-align: center;"></section>长按 2秒，输入：【书单】
获取Python精选书籍
<section data-darkmode-color-15968917432472="rgba(163, 163, 163, 0.9)" data-darkmode-original-color-15968917432472="rgba(230, 230, 230, 0.9)" data-darkmode-bgcolor-15968917432472="rgb(25, 25, 25)" data-darkmode-original-bgcolor-15968917432472="rgb(255, 255, 255)" style="margin-right: 8px;margin-left: 8px;min-height: 1em;text-align: left;"><span style="color: rgb(217, 33, 66);">点击阅读原文，直达菜鸟B站视频干货！</span></section>本篇文章来源于: 菜鸟学Python
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