appendixd.htm

很好的一本学习Python的书籍

        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><b>1</b></font><font face="Times New Roman, Times, Serif" size="3"> 
        for truth testing. </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3">if&nbsp;<i>your&nbsp;instance:</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        expressions, and so on.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{114C}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__oct__(<i>self)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; return a string containing an octal representation of your 
        class.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{114D}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__or__(<i>self,other)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; perform the equivalent of a bitwise </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3">or</font><font face="Times New Roman, Times, Serif" size="3"> 
        operation (|) on your class and return the result.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{114E}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__pos__(<i>self)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; perform the equivalent of multiplying your class times </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3">1</font><font face="Times New Roman, Times, Serif" size="3">. 
        This is the </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        identity</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        operation.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{114F}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__pow__(<i>self,other[,modulo])<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; perform the equivalent of exponentiating </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        self</i></font><font face="Times New Roman, Times, Serif" size="3"> to 
        the </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        other</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        power.If the </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        modulo</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        argument is provided, perform </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3">(<i>self</i>&nbsp;**&nbsp;<i>other)</i>&nbsp;%&nbsp;<i>modulo</i></font><font face="Times New Roman, Times, Serif" size="3">.</font><font face="Times New Roman, Times, Serif" color="#ffff00" size="3"><!-- break --></font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{1150}">
    <p>&nbsp;</a></td>
  </tr>
</table>
<p><font color="white" size="0"></p>
</center>
<p><a name="bottom">&nbsp;</a>
<!-- netLibrary.com Copyright Notice --></font></p>
<p>&nbsp;</p>
<center>
<table cellPadding="0" width="100%" border="0">
  <tr>
    <td align="middle">
    <table cellSpacing="0" cellPadding="2" width="100%" border="0">
      <tr>
        <td align="left">&nbsp;</td>
        <td align="right">&nbsp;</td>
      </tr>
    </table>
    </td>
  </tr>
  <tr>
    <td align="left"><a name="{1151}">
    <table cellSpacing="0" cellPadding="0" width="100%" border="0">
      <tr>
        <td align="right">
        <font face="Times New Roman, Times, Serif" color="#ff0000" size="2">Page 
        479</font></td>
      </tr>
    </table>
    </a><a name="{1152}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__radd__(<i>self,other)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; add </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        self</i></font><font face="Times New Roman, Times, Serif" size="3"> and
        </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        other</i></font><font face="Times New Roman, Times, Serif" size="3"> and 
        return result. Called for, for example, </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3">1&nbsp;+&nbsp;<i>class</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        instead of </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        class</i>&nbsp;+&nbsp;1</font><font face="Times New Roman, Times, Serif" size="3">.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{1153}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__rand__(<i>self,other)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; return the result of bitwise </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        and'ing&nbsp;(&amp;)&nbsp;<i>self</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        with </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        other</i></font><i><font face="Times New Roman, Times, Serif" size="3">.</font></i><font face="Times New Roman, Times, Serif" size="3"> 
        Called when left operand is not an instance of your class.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{1154}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__rdiv__(<i>self,other)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; divide </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        self</i></font><font face="Times New Roman, Times, Serif" size="3"> by
        </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        other</i></font><font face="Times New Roman, Times, Serif" size="3"> and 
        return the result. Called when left operand is not an instance of your 
        class.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{1155}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__rdivmod__(<i>self,other)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; divide </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        self</i></font><font face="Times New Roman, Times, Serif" size="3"> by
        </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        other</i></font><font face="Times New Roman, Times, Serif" size="3"> and 
        return a tuple of the result and the remainder. Called when left operand 
        is not an instance of your class.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{1156}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__repr__(<i>self)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Class; called by the </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        repr()</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        built-in function and string conversions (backquotes). By convention, 
        this is supposed to return a string that can be used later to re-create 
        the class instance.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{1157}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>
        <td rowSpan="5">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td>&nbsp;</td>
        <td><font face="Courier New, Courier, Mono New, Courier, Mono" size="3">
        <b>__rlshift__(<i>self,other)<br>
        </i></b></font><font face="Times New Roman, Times, Serif" size="3">
        Numeric; return the result of performing a left-shift (&lt;&lt;) by </font>
        <font face="Courier New, Courier, Mono New, Courier, Mono" size="3"><i>
        other</i></font><font face="Times New Roman, Times, Serif" size="3"> 
        bits or units on your class, but only if it makes sense. Called when 
        left operand is not an instance of your class.</font></td>
        <td>&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3">&nbsp;</td>
      </tr>
      <tr>
        <td colSpan="3" height="1"></td>
      </tr>
    </table>
    </a><a name="{1158}">
    <table cellSpacing="0" cellPadding="0" border="0">
      <tr>
        <td rowSpan="5">&nbsp;</td>
        <td colSpan="3" height="12"></td>