⭐ 欢迎来到虫虫下载站! | 📦 资源下载 📁 资源专辑 ℹ️ 关于我们
⭐ 虫虫下载站

📄 al-port-objects.html

📁 一本很好的python的说明书,适合对python感兴趣的人
💻 HTML
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>18.1.2 Port Objects </title>
<META NAME="description" CONTENT="18.1.2 Port Objects ">
<META NAME="keywords" CONTENT="lib">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="STYLESHEET" href="lib.css" tppabs="http://www.python.org/doc/current/lib/lib.css">
<LINK REL="previous" href="al-config-objects.html" tppabs="http://www.python.org/doc/current/lib/al-config-objects.html">
<LINK REL="up" href="module-al.html" tppabs="http://www.python.org/doc/current/lib/module-al.html">
<LINK REL="next" href="module-al-constants.html" tppabs="http://www.python.org/doc/current/lib/module-al-constants.html">
</head>
<body>
<DIV CLASS="navigation"><table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td><A href="al-config-objects.html" tppabs="http://www.python.org/doc/current/lib/al-config-objects.html"><img src="previous.gif" tppabs="http://www.python.org/doc/current/icons/previous.gif" border="0" height="32"
  alt="Previous Page" width="32"></A></td>
<td><A href="module-al.html" tppabs="http://www.python.org/doc/current/lib/module-al.html"><img src="up.gif" tppabs="http://www.python.org/doc/current/icons/up.gif" border="0" height="32"
  alt="Up One Level" width="32"></A></td>
<td><A href="module-al-constants.html" tppabs="http://www.python.org/doc/current/lib/module-al-constants.html"><img src="next.gif" tppabs="http://www.python.org/doc/current/icons/next.gif" border="0" height="32"
  alt="Next Page" width="32"></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td><A href="contents.html" tppabs="http://www.python.org/doc/current/lib/contents.html"><img src="contents.gif" tppabs="http://www.python.org/doc/current/icons/contents.gif" border="0" height="32"
  alt="Contents" width="32"></A></td>
<td><a href="modindex.html" tppabs="http://www.python.org/doc/current/lib/modindex.html" title="Module Index"><img src="modules.gif" tppabs="http://www.python.org/doc/current/icons/modules.gif" border="0" height="32"
  alt="Module Index" width="32"></a></td>
<td><A href="genindex.html" tppabs="http://www.python.org/doc/current/lib/genindex.html"><img src="index.gif" tppabs="http://www.python.org/doc/current/icons/index.gif" border="0" height="32"
  alt="Index" width="32"></A></td>
</tr></table>
<b class="navlabel">Previous:</b> <a class="sectref" href="al-config-objects.html" tppabs="http://www.python.org/doc/current/lib/al-config-objects.html">18.1.1 Configuration Objects</A>
<b class="navlabel">Up:</b> <a class="sectref" href="module-al.html" tppabs="http://www.python.org/doc/current/lib/module-al.html">18.1 al  </A>
<b class="navlabel">Next:</b> <a class="sectref" href="module-al-constants.html" tppabs="http://www.python.org/doc/current/lib/module-al-constants.html">18.2 AL  </A>
<br><hr></DIV>
<!--End of Navigation Panel-->

<H2>
<BR>
18.1.2 Port Objects 
</H2>

<P>
Port objects, as returned by <tt class="function">openport()</tt>, have the following
methods:

<P>
<dl><dt><b><a name='l2h-3095'><tt class='method'>closeport</tt></a></b> ()
<dd>
Close the port.
</dl>

<P>
<dl><dt><b><a name='l2h-3096'><tt class='method'>getfd</tt></a></b> ()
<dd>
Return the file descriptor as an int.
</dl>

<P>
<dl><dt><b><a name='l2h-3097'><tt class='method'>getfilled</tt></a></b> ()
<dd>
Return the number of filled samples.
</dl>

<P>
<dl><dt><b><a name='l2h-3098'><tt class='method'>getfillable</tt></a></b> ()
<dd>
Return the number of fillable samples.
</dl>

<P>
<dl><dt><b><a name='l2h-3099'><tt class='method'>readsamps</tt></a></b> (<var>nsamples</var>)
<dd>
Read a number of samples from the queue, blocking if necessary.
Return the data as a string containing the raw data, (e.g., 2 bytes per
sample in big-endian byte order (high byte, low byte) if you have set
the sample width to 2 bytes).
</dl>

<P>
<dl><dt><b><a name='l2h-3100'><tt class='method'>writesamps</tt></a></b> (<var>samples</var>)
<dd>
Write samples into the queue, blocking if necessary.  The samples are
encoded as described for the <tt class="method">readsamps()</tt> return value.
</dl>

<P>
<dl><dt><b><a name='l2h-3101'><tt class='method'>getfillpoint</tt></a></b> ()
<dd>
Return the `fill point'.
</dl>

<P>
<dl><dt><b><a name='l2h-3102'><tt class='method'>setfillpoint</tt></a></b> (<var>fillpoint</var>)
<dd>
Set the `fill point'.
</dl>

<P>
<dl><dt><b><a name='l2h-3103'><tt class='method'>getconfig</tt></a></b> ()
<dd>
Return a configuration object containing the current configuration of
the port.
</dl>

<P>
<dl><dt><b><a name='l2h-3104'><tt class='method'>setconfig</tt></a></b> (<var>config</var>)
<dd>
Set the configuration from the argument, a configuration object.
</dl>

<P>
<dl><dt><b><a name='l2h-3105'><tt class='method'>getstatus</tt></a></b> (<var>list</var>)
<dd>
Get status information on last error.
</dl>

<P>

<DIV CLASS="navigation"><p><hr><table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td><A href="al-config-objects.html" tppabs="http://www.python.org/doc/current/lib/al-config-objects.html"><img src="previous.gif" tppabs="http://www.python.org/doc/current/icons/previous.gif" border="0" height="32"
  alt="Previous Page" width="32"></A></td>
<td><A href="module-al.html" tppabs="http://www.python.org/doc/current/lib/module-al.html"><img src="up.gif" tppabs="http://www.python.org/doc/current/icons/up.gif" border="0" height="32"
  alt="Up One Level" width="32"></A></td>
<td><A href="module-al-constants.html" tppabs="http://www.python.org/doc/current/lib/module-al-constants.html"><img src="next.gif" tppabs="http://www.python.org/doc/current/icons/next.gif" border="0" height="32"
  alt="Next Page" width="32"></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td><A href="contents.html" tppabs="http://www.python.org/doc/current/lib/contents.html"><img src="contents.gif" tppabs="http://www.python.org/doc/current/icons/contents.gif" border="0" height="32"
  alt="Contents" width="32"></A></td>
<td><a href="modindex.html" tppabs="http://www.python.org/doc/current/lib/modindex.html" title="Module Index"><img src="modules.gif" tppabs="http://www.python.org/doc/current/icons/modules.gif" border="0" height="32"
  alt="Module Index" width="32"></a></td>
<td><A href="genindex.html" tppabs="http://www.python.org/doc/current/lib/genindex.html"><img src="index.gif" tppabs="http://www.python.org/doc/current/icons/index.gif" border="0" height="32"
  alt="Index" width="32"></A></td>
</tr></table>
<b class="navlabel">Previous:</b> <a class="sectref" href="al-config-objects.html" tppabs="http://www.python.org/doc/current/lib/al-config-objects.html">18.1.1 Configuration Objects</A>
<b class="navlabel">Up:</b> <a class="sectref" href="module-al.html" tppabs="http://www.python.org/doc/current/lib/module-al.html">18.1 al  </A>
<b class="navlabel">Next:</b> <a class="sectref" href="module-al-constants.html" tppabs="http://www.python.org/doc/current/lib/module-al-constants.html">18.2 AL  </A>
</DIV>
<!--End of Navigation Panel-->
<ADDRESS>
<hr>See <i><a href="about.html" tppabs="http://www.python.org/doc/current/lib/about.html">About this document...</a></i> for information on suggesting changes.
</ADDRESS>
</BODY>
</HTML>

⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -