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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html><head><meta name="generator" content="HTML Tidy, see www.w3.org"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><link type="text/css" rel="stylesheet" href="style.css"><!-- Generated by The Open Group's rhtm tool v1.2.1 --><!-- Copyright (c) 2001-2003 The Open Group, All Rights Reserved --><title><langinfo.h></title></head><body bgcolor="white"><script type="text/javascript" language="JavaScript" src="../jscript/codes.js"></script><basefont size="3"> <a name="<langinfo.h>"></a> <a name="tag_13_22"></a><!-- <langinfo.h> --> <!--header start--><center><font size="2">The Open Group Base Specifications Issue 6<br>IEEE Std 1003.1, 2003 Edition<br>Copyright © 2001-2003 The IEEE and The Open Group, All Rights reserved.</font></center><!--header end--><hr size="2" noshade><h4><a name="tag_13_22_01"></a>NAME</h4><blockquote>langinfo.h - language information constants</blockquote><h4><a name="tag_13_22_02"></a>SYNOPSIS</h4><blockquote class="synopsis"><div class="box"><tt><sup>[<a href="javascript:open_code('XSI')">XSI</a>]</sup> <img src="../images/opt-start.gif" alt="[Option Start]" border="0"> #include <langinfo.h> <img src="../images/opt-end.gif" alt="[Option End]" border="0"></tt></div></blockquote><h4><a name="tag_13_22_03"></a>DESCRIPTION</h4><blockquote><p>The <i><langinfo.h></i> header contains the constants used to identify items of <i>langinfo</i> data (see <a href="../functions/nl_langinfo.html"><i>nl_langinfo</i>()</a>). The type of the constant, <b>nl_item</b>, shall be defined as describedin <a href="nl_types.h.html"><i><nl_types.h></i></a> .</p><p>The following constants shall be defined. The entries under <b>Category</b> indicate in which <a href="../functions/setlocale.html"><i>setlocale</i>()</a> category each item is defined.</p><center><table border="1" cellpadding="3" align="center"><tr valign="top"><th align="center"><p class="tent"><b>Constant</b></p></th><th align="center"><p class="tent"><b>Category</b></p></th><th align="center"><p class="tent"><b>Meaning</b></p></th></tr><tr valign="top"><td align="left"><p class="tent">CODESET</p></td><td align="left"><p class="tent"><i>LC_CTYPE</i></p></td><td align="left"><p class="tent">Codeset name.</p></td></tr><tr valign="top"><td align="left"><p class="tent">D_T_FMT</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">String for formatting date and time.</p></td></tr><tr valign="top"><td align="left"><p class="tent">D_FMT</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Date format string.</p></td></tr><tr valign="top"><td align="left"><p class="tent">T_FMT</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Time format string.</p></td></tr><tr valign="top"><td align="left"><p class="tent">T_FMT_AMPM</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">a.m. or p.m. time format string.</p></td></tr><tr valign="top"><td align="left"><p class="tent">AM_STR</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Ante-meridiem affix.</p></td></tr><tr valign="top"><td align="left"><p class="tent">PM_STR</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Post-meridiem affix.</p></td></tr><tr valign="top"><td align="left"><p class="tent">DAY_1</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the first day of the week (for example, Sunday).</p></td></tr><tr valign="top"><td align="left"><p class="tent">DAY_2</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the second day of the week (for example, Monday).</p></td></tr><tr valign="top"><td align="left"><p class="tent">DAY_3</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the third day of the week (for example, Tuesday).</p></td></tr><tr valign="top"><td align="left"><p class="tent">DAY_4</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the fourth day of the week</p></td></tr><tr valign="top"><td align="left"><p class="tent"></p></td><td align="left"><p class="tent"><i> </i></p></td><td align="left"><p class="tent">(for example, Wednesday).</p></td></tr><tr valign="top"><td align="left"><p class="tent">DAY_5</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the fifth day of the week (for example, Thursday).</p></td></tr><tr valign="top"><td align="left"><p class="tent">DAY_6</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the sixth day of the week (for example, Friday).</p></td></tr><tr valign="top"><td align="left"><p class="tent">DAY_7</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the seventh day of the week</p></td></tr><tr valign="top"><td align="left"><p class="tent"></p></td><td align="left"><p class="tent"><i> </i></p></td><td align="left"><p class="tent">(for example, Saturday).</p></td></tr><tr valign="top"><td align="left"><p class="tent">ABDAY_1</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Abbreviated name of the first day of the week.</p></td></tr><tr valign="top"><td align="left"><p class="tent">ABDAY_2</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Abbreviated name of the second day of the week.</p></td></tr><tr valign="top"><td align="left"><p class="tent">ABDAY_3</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Abbreviated name of the third day of the week.</p></td></tr><tr valign="top"><td align="left"><p class="tent">ABDAY_4</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Abbreviated name of the fourth day of the week.</p></td></tr><tr valign="top"><td align="left"><p class="tent">ABDAY_5</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Abbreviated name of the fifth day of the week.</p></td></tr><tr valign="top"><td align="left"><p class="tent">ABDAY_6</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Abbreviated name of the sixth day of the week.</p></td></tr><tr valign="top"><td align="left"><p class="tent">ABDAY_7</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Abbreviated name of the seventh day of the week.</p></td></tr><tr valign="top"><td align="left"><p class="tent">MON_1</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the first month of the year.</p></td></tr><tr valign="top"><td align="left"><p class="tent">MON_2</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the second month.</p></td></tr><tr valign="top"><td align="left"><p class="tent">MON_3</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the third month.</p></td></tr><tr valign="top"><td align="left"><p class="tent">MON_4</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the fourth month.</p></td></tr><tr valign="top"><td align="left"><p class="tent">MON_5</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the fifth month.</p></td></tr><tr valign="top"><td align="left"><p class="tent">MON_6</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the sixth month.</p></td></tr><tr valign="top"><td align="left"><p class="tent">MON_7</p></td><td align="left"><p class="tent"><i>LC_TIME</i></p></td><td align="left"><p class="tent">Name of the seventh month.</p></td></tr>⌨️ 快捷键说明
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