a_5.6.htm
来自「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」· HTM 代码 · 共 89 行
HTM
89 行
<html>
<head>
<title>5.6的解答</title>
</head>
<body background="../../images/background.gif" >
<center><font class="title2"><b>练习5.6</b></font></center><br>
<p>解答: </p>
<table align = center border = 1 width = "80%" cellspacing="0" cellpadding="5">
<tr>
<td width = "30%"><div align = center>产生式</div></td>
<td width = "70%"><div align = center>语义规则</div></td>
</tr>
<tr>
<td >
D -> D<sub>1</sub>,id
</td>
<td >
D.type:=D<sub>1</sub>.type;
<p>addtype(id.entry,D<sub>1</sub>.type);
</td>
</tr>
<tr>
<td >
D -> T id
</td>
<td>
D.type:=T.type;
<p>addtype(id.entry,T.type);</p>
</td>
</tr>
<tr>
<td>
T -> int
</td>
<td>
T.type:=int;
</td>
</tr>
<tr>
<td>
T -> real
</td>
<td>
T.type:=real;
</td>
</tr>
</table>
<p> </p>
</body>
<html><script language="JavaScript">
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