回到开头 回忆上次内容 进程前后台切换 ctrl + z 把当前进程切换到后台并暂停jobs 查看所有作业用 fg 可以把后台进程再切回前台 fg %1 可以把指定的任务切回前台 用 bg 可以让进程在后台运行 进程查询 ps -elf 查…
n): """ returns the number of times a nucleotide n appears in the sequence; raises a SeqError if n is not a nucleotide """ if n not in "ACTG": # This triggers the exception raise SeqError("Not a Nucleotide", n) return self.seq.count(n)...
Working With Escape CharactersThe following are the escape characters that can be used within the print() function to print special values or to format the output.Escape characterDescription \' Prints single quote \\ Prints backslash \n Prints a new line \r Prints carriage return \t Prints ...
Notice that we must strip out the carriage return from each line using the method .strip(‘\r’). If we detect a match, we print the vulnerable service banner. def checkVulns(banner): f = open(“vuln_banners.txt”,’r’) for line in f.readlines(): if line.strip(‘\n’) in ...
whitespace: space (␣), the tab (\t), the new line (\n) and the carriage return (\r) \s will match any of the specific whitespaces above \D represents any non-digit character, \S any non-whitespace character, and \W any non-alphanumeric ...
[::-1] # reverse a stringfor string and list, these are common builtin function:1.a = [1, 2, 3] a.append(5); del a; a.pop(2); 2 in a; for num in a: ...a = [4, 2, 1, 5]sorted(a) >>>[1, 2, 4, 5]b = ':'.join(a) >>> string func not working hereb...
\r ASCII Carriage return (CR) character \t ASCII Horizontal tab (TAB) character \uxxxx Unicode character with 16-bit hex value xxxx \Uxxxxxxxx Unicode character with 32-bit hex value xxxxxxxx \v ASCII Vertical tab (VT) character \ooo Character with octal value ooo \xhh Character with hex...
whitespace The combination of the space character, horizontal and vertical tab, linefeed, carriage return, and form feed printable The combination of digits, ascii_letters, punctuation, and whitespaceThese string-related constants come in handy in many situations. You can use them when you’re doin...
Thestr.splitlinesmethod returns a list of the lines in the string, breaking at line boundaries. Line breaks are not included in the resulting list unlesskeependsis set toTrue. The line boundaries are characters including line feed\n, carriage return\r, and carriage return/line feed\r\n. ...
Notice that we must strip out the carriage return from each line using the method .strip(‘\r’). If we detect a match, we print the vulnerable service banner. def checkVulns(banner): f = open(“vuln_banners.txt”,’r’) for line in f.readlines(): if line.strip(‘\n’) in ...