这个第一班轮是我发现单班轮精彩世界的那个。 Reversing a list using a one-liner 最后的想法 Python 是开发人员中最流行的编程语言之一。使用这种语言,我们可以做与其他语言相同的事情,但在更简洁的方式.利用语言的这种力量并使用单行,我们可以作为开发人员改进和在竞争性编程中竞争也是。 尽管如此,我们不能忘记编写...
不使用pandas# 从gene_presence_absence_roary.csv文件中提取"Gene"这一列python -c"import sys; index...
涉及到if statement时:(if statement在最后) #输出[1,10]中的偶数my_list = [iforiinrange(1,11)ifi%2 ==0]print(my_list) 涉及到if-else语句时: #输出[1,10]中的偶数my_list = [iifi%2 == 0else"Python"foriinrange(1,11)]print(my_list) 注意 iifi%2 == 0else"Python" 与 a = 4...
"If You Have Any Doubts About Whether To Buy - Don't!" Python One-Linerswill teach you how to read and write “one-liners”: concise statements of useful functionality packed into a single line of code. You'll learn how to systematically unpack and understand any line of Python code,...
In this chapter I will show you some one-liner Python commands which can be really helpful. Simple Web Server Ever wanted to quickly share a file over a network? Well you are in luck. Python has a feature just for you. Go to the directory which you want to serve over the network and...
在Makefile中,使用$(shell ...)语法来执行Perl One-Liner。例如,要打印当前目录下的所有文件名,可以使用以下代码: 代码语言:makefile 复制 files:=$(shellperl -e'opendir(DIR, "."); @files = readdir(DIR); closedir(DIR); foreach $file (@files) { print "$file\n" if (-f $file); }') ...
要使用Perl one liner提取多线图案,可以使用Perl的-ne选项。-n选项会在每行上运行脚本,-e选项允许您在命令行中指定Perl代码。例如,要提取以下文本中的所有段落,可以使用以下命令: 代码语言:txt 复制 perl -ne 'if (/^$/) {print "New paragraph\n";} else {print $_;}' input.txt ...
Check out my new Python bookPython One-Liners(Amazon Link). If you like one-liners, you’ll LOVE the book. It’ll teach you everything there is to know about asingle line of Python code.But it’s also anintroduction to computer science, data science, machine learning, and algorithms....
python -c "while 1:import random;print(random.choice('|| __'), end='')" Create an infinite maze with this deceptively short one-liner. It is quite easy to understand too. Thewhileloop is infinite. Theimportstatement had to move inside the loop but Python takes care not to re-import...
If you like one-liners and you enjoyed this tutorial, have a look at my new book: Python One-Liners Book: Master the Single Line First! Python programmers will improve their computer science skills with these useful one-liners. Python One-Linerswill teach you how to read and write “on...