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<p>  
<font class="example">例4.19 </font>再次考虑文法(4.18)，它的转移函数go的图如图4.23所示。正如我们前面提到的，有三对项目集可被合并。I<sub>3</sub>和I<sub>6</sub>合并，用I<sub>36</sub>代替：<br>  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I<sub>36</sub>：C→c·C,c/d/＄ <br>  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C→·cC,c/d/＄ <br>  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C→·d，c/d/＄ <br>  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C→·d，c/d/＄<br>   
<p>I<sub>4</sub>和I<sub>7</sub>合并用I<sub>47</sub>代替：</p>  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I<sub>47</sub>：C→d·，c/d/＄ <br>   
<p>I<sub>8</sub>和I<sub>9</sub>合并，用I<sub>89</sub>代替：<br>  
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;I<sub>89</sub>：C→cC·，c/d/＄   
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<p>文法(4.18)的LALR分析表如表4.14所示。  
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