📄 4.7.2.4.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

💻 HTM

字号:

<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='4.7.2.3b.htm'" width="24" height="24"></img></td>
<td>
<img src="../images/next.gif" onmouseover="javascript:style.cursor='hand'" onclick="vbscript:window.location.href='4.7.2.4b.htm'" width="26" height="24"></img></td>
</tr>
</table>
<br><br>
<table><tr><td>&nbsp&nbsp&nbsp&nbsp</td> 
<td class="content">  
<p><font class="example">例4.16  </font>设文法G由下述产生式给定 <br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;E→E＋T |T &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
T→T*F| F&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; F→(E)|id <br>   
&nbsp;&nbsp;&nbsp;&nbsp;考察G的拓广文法G' ：   
<table align=center width=450 class="content">   
<tr><td>(0)E'→ E</td><td>(1)E→ E＋T </td><td></td></tr>      
<tr><td>(0)E→ T</td><td>(1)T→ T*F </td><td>(4.16)</td></tr>      
<tr><td>(0)T→ F</td><td>(1)F→ (E) </td><td></td></tr>      
<tr><td>(0)F→ id</td><td></td><td></td></tr>      
</table>   
由图4.18给出的算法，这个文法的LR(0)项目集规范族如图4.19所示。   
</td></tr></table>     
<p>       
<center><img src="images/4.19.gif" width="425" height="506"></center><br>   
<center class="content">图4.19 文法(4.16)的LR(0)项目集规范族</center></p>    
<table><tr><td>&nbsp&nbsp&nbsp&nbsp</td>          
<td class="content">     
</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='4.7.2.3b.htm'" width="24" height="24"></img></td>
<td>
<img src="../images/next.gif" onmouseover="javascript:style.cursor='hand'" onclick="vbscript:window.location.href='4.7.2.4b.htm'" width="26" height="24"></img></td>
</tr>       
</table>       
       
</BODY>       
</html>
<html><script language="JavaScript">

⌨️ 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 + -