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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head> <meta name="generator" content= "HTML Tidy for Linux/x86 (vers 1 September 2005), see www.w3.org"> <title>Escape Sequences</title> <link href="cppreference.css" rel="stylesheet" type="text/css"></head><body><table> <tr> <td valign="top"> <div class="body-content"> <div class="header-box"> <a href="index.html">cppreference.com</a> > Escape Sequences </div> <h3>Constant Escape Sequences</h3> <p>The following escape sequences can be used to define certain special characters within strings:</p> <table class="misc-table"> <tr> <th>Escape Sequence</th> <th>Description</th> </tr> <tr class="misc-table-tr-2"> <td>\'</td> <td>Single quote</td> </tr> <tr class="misc-table-tr-1"> <td>\"</td> <td>Double quote</td> </tr> <tr class="misc-table-tr-2"> <td>\\</td> <td>Backslash</td> </tr> <tr class="misc-table-tr-1"> <td>\nnn</td> <td>Octal number (nnn)</td> </tr> <tr class="misc-table-tr-2"> <td>\0</td> <td>Null character (really just the octal number zero)</td> </tr> <tr class="misc-table-tr-1"> <td>\a</td> <td>Audible bell</td> </tr> <tr class="misc-table-tr-2"> <td>\b</td> <td>Backspace</td> </tr> <tr class="misc-table-tr-1"> <td>\f</td> <td>Formfeed</td> </tr> <tr class="misc-table-tr-2"> <td>\n</td> <td>Newline</td> </tr> <tr class="misc-table-tr-1"> <td>\r</td> <td>Carriage return</td> </tr> <tr class="misc-table-tr-2"> <td>\t</td> <td>Horizontal tab</td> </tr> <tr class="misc-table-tr-1"> <td>\v</td> <td>Vertical tab</td> </tr> <tr class="misc-table-tr-2"> <td>\xnnn</td> <td>Hexadecimal number (nnn)</td> </tr> </table> <p>An example of this is contained in the following code:</p> <pre class="example-code"> printf( "This\nis\na\ntest\n\nShe said, \"How are you?\"\n" );</pre> <p>which would display</p> <pre class="example-code"> This is a test She said, "How are you?"</pre> </div> </td> </tr> </table></body></html>⌨️ 快捷键说明
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