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📁 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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<font class="title2"><b>练习</b></font> </p>

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    <td>&nbsp;&nbsp;&nbsp;&nbsp;</td>
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    <p><a name="7.9"></a> </p>
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    7.9 Pascal语言中,语句 <br>
    
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        <td>for v:=initial to final do stmt</td>
        <td>&nbsp;&nbsp;&nbsp;</td>
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    <p><br>
    与下列代码序列有相同含义</p>
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        <td>begin<br>
        &nbsp;&nbsp;&nbsp; t<span class="down">1</span>:=initial;t<span class="down">2</span>:=final;<br>
        &nbsp;&nbsp;&nbsp; if t<span class="down">1</span>&lt;=t<span class="down">2</span> then 
        begin<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; v:=t<span class="down">1</span>;<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stmt<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; while v&lt;&gt;t<span class="down">2</span> do begin<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; v:=succ(v);<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; stmt<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; end<br>
        &nbsp;&nbsp;&nbsp; end<br>
        end&nbsp;&nbsp;&nbsp;</td>
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    <p><br>
    (a)试考虑下述Pascal程序<br>
    </p>
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        <td>program forloop(input, output);<br>
        &nbsp;&nbsp;&nbsp; var i,initial,final: integer;<br>
        <strong>&nbsp;&nbsp;&nbsp; begin</strong><br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; read(initial, final);<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; for i:= initial to final <strong>do<br>
        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </strong>write(i)<strong><br>
        &nbsp;&nbsp;&nbsp; end</strong> </td>
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    <p>对于initial=MAXINT-5和final= MAXINT,问此程序将做些什么?其中MAXINT为目标机器允许的最大整数。 
    <br>
    &nbsp;*(b)试构造一个翻译pascal的for语句为三地址代码的语法制导定义。 
    <br>
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