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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>abs</title> <link href="../cppreference.css" rel="stylesheet" type="text/css"></head><body><table> <tr> <td> <div class="body-content"> <div class="header-box"> <a href="../index.html">cppreference.com</a> > <a href= "index.html">Standard C Math</a> > <a href="abs.html">abs</a> </div> <div class="name-format"> abs </div> <div class="syntax-name-format"> Syntax: </div> <pre class="syntax-box"> #include <stdlib.h> int abs( int num );</pre> <p>The abs() function returns the absolute value of <em>num</em>. For example:</p> <pre class="example-code"> int magic_number = 10; cout << "Enter a guess: "; cin >> x; cout << "Your guess was " << abs( magic_number - x ) << " away from the magic number." << endl; </pre> <div class="related-name-format"> Related topics: </div> <div class="related-content"> <a href="fabs.html">fabs</a><br> <a href="labs.html">labs</a> </div> </div> </td> </tr> </table></body></html>⌨️ 快捷键说明
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