大多数的cheatsheet都是简单的语法规则列表,如果你手头有一份cheatsheet会让你的工作效率大大提升。
近日,有一叫Python-cheatsheet项目在Hacker News、Reddit、Github等网站上成功引起了广大程序员的注意。
Python-cheatsheet是一份超全的Python速查表,最大的特点就是你无需安装和配置,在线就能使用,内容十分全面
目前,python-cheatsheet已经过在Github上获得 7885 个Star,1572 个Fork(Github地址:https://github.com/gto76/python-cheatsheet)
清单的开头就对这份内容进行一个梳理,可以看出内容涵盖:容器、类型、语法、系统、数据、库,以及Advanced Python等。你只要点击相关知识点,就会跳转到相关的详情页,下面以Main和List为例
Main
if __name__ == '__main__': # Runs main() if file wasn't imported.
main()
List
<list> = <list>[from_inclusive : to_exclusive : ±step_size]
<list>.append(<el>) # Or: <list> += [<el>]
<list>.extend(<collection>) # Or: <list> += <collection>
<list>.sort()
<list>.reverse()
<list> = sorted(<collection>)
<iter> = reversed(<list>)
sum_of_elements = sum(<collection>)
elementwise_sum = [sum(pair) for pair in zip(list_a, list_b)]
sorted_by_second = sorted(<collection>, key=lambda el: el[1])
sorted_by_both = sorted(<collection>, key=lambda el: (el[1], el[0]))
flatter_list = list(itertools.chain.from_iterable(<list>))
product_of_elems = functools.reduce(lambda out, x: out * x, <collection>)
list_of_chars = list(<str>)
index = <list>.index(<el>) # Returns index of first occurrence or raises ValueError.
<list>.insert(index, <el>) # Inserts item at index and moves the rest to the right.
<el> = <list>.pop([index]) # Removes and returns item at index or from the end.
<list>.remove(<el>) # Removes first occurrence of item or raises ValueError.
<list>.clear() # Removes all items. Also works on dict and set.
整份文档基本都是代码,只有个别内容会添加一些简短的文字说明,对于用法创建者为了减少使用者的负担,只给了最常见的用法,用最简洁的方式给你最需要的用法
如果你不想在线使用该文档,你也可以下载文本,下载地址:https://raw.githubusercontent.com/gto76/python-cheatsheet/master/README.md
项目地址:https://github.com/gto76/python-cheatsheet