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C/C++ 中的\n, \t, \r #5

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zhirui1994 opened this issue Jan 17, 2019 · 0 comments

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C/C++

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zhirui1994 commented Jan 17, 2019

起因

看c/c++代码时经常在字符串中看到\n, \t, \r这几个字符。刚开始不是很懂。

解释

这些都是转义字符。
一般常用的如下表:

转义字符	意义	ASCII码值（十进制）
\a	响铃(BEL)	007
\b	退格(BS)	008
\f	换页(FF)	012
\n	换行(LF)	010
\r	回车(CR)	013
\t	水平制表(HT)	009
\v	垂直制表(VT)	011
\\	反斜杠	092
'	单引号字符	039
"	双引号字符	034
\0	空字符(NULL)	000
\ddd	任意字符	三位八进制
\xhh	任意字符	二位十六进制

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zhirui1994 added the C/C++ label

zhirui1994 added this to the 技术 milestone

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