为什么枚举要实现接口?
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2022-08-26
python-5.原样输出,转义字符(python中转义字符用法及例子)
exercise 9
python换行符,\n,tab制表符\t 多行文本原样输出.不解析变量,但是换行符号,转义字符仍旧生效,与php里面的nowdoc类似.三个单引号与三个双引号作用一样.
# Here's some new strange stuff, remember type it exactly.days = "Mon Tue Wed Thu Fri Sat Sun"months = "\nJan\nFeb\nMar\nApr\nMay\nJun\nJul\nAug"print("Here are the days:",days)print("Here are the months:",months)print('''There's something 'dfs '' going on here. "{months}"\tWith the three double quots. {days}We'll be able to type as much as we like.\nEven 4 lines if we want, or 5, ""asdas"" or 6.''')
exercise 10
tabbly_cat = "\tI'm tabbed in."persian_cat = "I'm split\non a line."backslash_cat = "I'm \\ a \\ cat."fat_cat = """""I'll do a list:\t* Cat food""\t* Fishies\t* Catnip\n\t* Grass"""print(tabbly_cat)print(persian_cat)print(backslash_cat)print(fat_cat)
python支持的转义字符串:
Escape | What it does. |
\ | Backslash () |
’ | Single-quote (’) |
" | Double-quote (") |
\a | ASCII bell (BEL) |
\b | ASCII backspace (BS) |
\f | ASCII formfeed (FF) |
\n | ASCII linefeed (LF) |
\N | {name} Character named name in the Unicode database |
\r | Carriage return (CR) |
\t | Horizontal tab (TAB) |
\uxxxx | Character with 16-bit hex value xxxx |
\Uxxxxxxxx | Character with 32-bit hex value xxxxxxxx |
\v | ASCII vertical tab (VT) |
\000 | Character with octal value 000 |
\xhh | Character with hex value hh |
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