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📄 7.8.0.htm

📁 建立《编译原理网络课程》的目的不仅使学生掌握构造编译程序的原理和技术
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<html>

<head>
<title>编译原理</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<link type="text/css" rel="stylesheet" href="../css/specification.css">
</head>

<body>

<table align="right" width="300">
  <tr>
    <td><img src="../images/previous.gif" onmouseover="javascript:style.cursor='hand'"
    onclick="vbscript:window.location.href='7.7.0c.htm'" ></td>
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    onclick="vbscript:window.location.href='7.8.0b.htm'" ></td>
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<p><br>
<br>
<font class="title2"><b>练习</b></font> </p>

<table>
  <tr>
    <td>&nbsp;&nbsp;&nbsp;&nbsp;</td>
    <td class="content">7.1 翻译算术表达式a*－（b＋c）为 <br>
    (a)一棵语法树， <br>
    (b)后缀式， <br>
    (c)三地址代码。<br>
    <table align="center" width="70%">
      <tr>
        <td align="right"><img src="key.gif" onmouseover="javascript:style.cursor='hand'"
        onclick="javascript:window.open('7.8.1.htm','','left=50,top=40,toolbar=no,scrollbars=yes,width=600,height=600')"
        width="32" height="32"> </td>
      </tr>
    </table>
    <p><a name="7.2"></a> </p>
    <hr size="2" align="center" color="red">
    <p><br>
    7.2翻译算术表达式一（a＋b）*（c＋d）＋（a＋b＋c）为<br>
    (a)四元式， <br>
    (b)三元式 <br>
    (c)间接三元式 <br>
    </p>
    <table align="center" width="70%">
      <tr>
        <td align="right"><img src="key.gif" onmouseover="javascript:style.cursor='hand'"
        onclick="javascript:window.open('7.8.2.htm','','left=50,top=40,toolbar=no,scrollbars=yes,width=600,height=600')"
        width="32" height="32"> </td>
      </tr>
    </table>
    <p><a name="7.3"></a> </p>
    <hr size="2" align="center" color="red">
    <p><br>
    7.3 试把下列C语言程序的可执行语句 <br>
    </p>
    <table align="center" width="350">
      <tr>
        <td>main()</td>
      </tr>
      <tr>
        <td>{<br>
        &nbsp;&nbsp;&nbsp;&nbsp; int i;<br>
        &nbsp;&nbsp;&nbsp;&nbsp; int a[10];<br>
        &nbsp;&nbsp;&nbsp;&nbsp; while (i&lt;=10)<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; a[i]=0;<br>
        }</td>
      </tr>
    </table>
    <p><br>
    翻译为<br>
    (a)一棵语法树， <br>
    (b)后缀式， <br>
    (c)三地址代码。 <br>
    </p>
    <table align="center" width="70%">
      <tr>
        <td align="right"><img src="key.gif" onmouseover="javascript:style.cursor='hand'"
        onclick="javascript:window.open('7.8.3.htm','','left=50,top=40,toolbar=no,scrollbars=yes,width=800,height=600')"
        width="32" height="32"> </td>
      </tr>
    </table>
    <hr size="2" align="center" color="red">
    </td>
  </tr>
</table>
    <br>
    <table align="right" width="300">
      <tr>
    <td><img src="../images/previous.gif" onmouseover="javascript:style.cursor='hand'"
    onclick="vbscript:window.location.href='7.7.0c.htm'" ></td>
    <td><img src="../images/next.gif" onmouseover="javascript:style.cursor='hand'"
    onclick="vbscript:window.location.href='7.8.0b.htm'" ></td>
      </tr>
    </table>
</body>
</html>

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