Unicode码(Universal Character Set,通用字符集) 是一种更加全面的字符编码方案,包含了几乎所有已知的文字符号、标点符号、符号、文字、音标、图形符号等。Unicode码使用16位(后来扩展为32位)二进制数字来表示字符,所以可以表示更多的字符。Unicode码的目标是覆盖全球所有的字符,并为各种语言和文化提供一致的字符编码方案...
\n ASCII Linefeed (LF) character \N{<name>} Character from Unicode database with given <name> \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 ...
return x * y; } else { return - x * y; } } 1. 2. 3. 4. 5. 6. 7. 8. 总结: 箭头函数有两种形式: (1)函数体为简单的表达式,可省略{}和return(2)函数体有多条语句,不能省 (3)箭头函数相当于匿名函数 当使用箭头函数的时候,箭头函数会默认帮我们绑定外层 this 的值,所以在箭头函数中 t...
means the shortest possible series of any character [' sixth s', " sheikh's s", " sheep's s"] #doesn’t return overlapping matches. 13、verbose regular expressions Python allows you to do this with something called verbose regular expressions. A verbose regular expression is different from...
\r ASCII Carriage Return (CR) 回车符 \t ASCII Horizontal Tab (TAB) 水平制表符 \uxxxx Character with 16-bit hex value xxxx (Unicode only) 值为16位十六进制xxxx的字符 \Uxxxxxxxx Character with 32-bit hex value xxxxxxxx (Unicode only) 值为32位十六进制xxxx的字符 ...
As each character comes through, the script will search for the string. Note: To make this work on both Windows and UNIX-based systems, two strings are searched for: either "==\n= " or "==\r\n= ". The Windows-style carriage return along with the typical newline is required on ...
(换行), and blank lines. Notice the \r and \n in the opening line of the file, which is how Python displays the special carriage return(回车)and line-feed(换行)characters (the file must have been created on a Windows machine,注1给出了解释). For our language processing, we want to ...
\r 0x0d Carriage return \s 0x20 Space \t 0x09 Tab \v 0x0b Vertical tab \x Character x \xnn Hexadecimal notation, where n is in the range 0.9, a.f, or A.F字符串运算符 假设A持有'hello'和变量b拥有'Python'的字符串变量:操作...
The escape character allows you to use double quotes when you normally would not be allowed: txt ="We are the so-called \"Vikings\" from the north." Try it Yourself » Other escape characters used in Python: CodeResultTry it \'Single QuoteTry it » ...
escape character \反斜杠 就是 转义字符 转义字符 在下图中 是由两部分组成 escape character \ 转义字符 b 具体转到的含义 escape sequence \b 就是转义序列 \b 这个转义序列 这两个字符的序列组合起来的意思 就是退格 backspace 还有什么转义字符吗?