dir() ——
Python provides a function that displays all known objects in the current name space of the console. It is called dir(): when you type dir() at the console, you get a list of known objects. Ignore everything starting with an underscore for now. Can you see hello in the
Python与哲学
Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren't special enough to break the rules.
A
AMNH: Donald Rumsfeld说有些东西我们知道我们知道，有些我们知道我们不知道，但还有些我们不知道我们不知道。对于不熟悉的非洲动物，大概就属于最后一种情况。比如图1 Okapi是长颈鹿的一种，没有长颈，腿部有斑马纹。图4跟非洲没关系，是Python巨蟒，前面就想过为什么流行的编程语言叫这个名字，查后
a = [1,2,3]
b = []
for i in a:
b.append(i + 2)
#l列表解析 人性化 （简便）
c = [1,2,3]
d = [j+2 for j in c]
see from -《python数据分析与挖掘实战》
列表和元组的区别 列表可以改数，元组不可以 列表是中括号，小括
![[doge]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/a1/2018new_doge02_org.png "[doge]")
//![[并不简单]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/aa/2018new_bingbujiandan_org.png "[并不简单]")
![[拜拜]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/fd/2018new_baibai_org.png "[拜拜]")
![[跪了]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/75/2018new_gui_org.png "[跪了]")
![[允悲]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/83/2018new_kuxiao_org.png "[允悲]")
网速慢的真是，安装上程序总算成功了一半，一大步的前进啊，我的python路开始了。早上学了语法基础和函数。倒也不太难，类似于C语言，终于知道大学学的东西真的都是有用的，连编程都有用。想起当年无数次质疑我一个学会 
![[费解]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/2a/2018new_wenhao_org.png "[费解]")
![[泪]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/6e/2018new_leimu_org.png "[泪]")
，现在要写C++，总有种赶鸭子上架的感觉。觉得C++的东西与我无关，大爷还是你大爷，不写是不存在的![[吐]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/08/2018new_tu_org.png "[吐]")
![[喵喵]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/7b/2018new_miaomiao_org.png "[喵喵]")
我可能真的是个速成天才 
![[坏笑]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/4d/2018new_huaixiao_org.png "[坏笑]")
![[衰]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/a2/2018new_shuai_org.png "[衰]")
![[围观]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/6c/2018new_weiguan_org.png "[围观]")
①Python开发简单爬虫：
️ Hy – A dialect of Lisp embedded in Python 
） 
![[二哈]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/22/2018new_erha_org.png "[二哈]")
![[困]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/3c/2018new_kun_org.png "[困]")
要开始
1.还id债2.寄几个快递走3.自律滴准备托福和python4.做夏日特饮5.日常
6.日常视频7.暂时没想好![[NO]](http://img.t.sinajs.cn/t4/appstyle/expression/ext/normal/1e/2018new_no_org.png "[NO]")
