词法分析程序.htm

语法分析程序 必须先编写一个program的文本文件 再对该文本文件的程序进行语法分析

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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>LONG</span></p>
  </td>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>6</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>PROCEDURE</span></p>
  </td>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>7</span></p>
  </td>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>IF</span></p>
  </td>
  <td width=69 style='width:51.95pt;border-top:none;border-left:none;
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>8</span></p>
  </td>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>THEN</span></p>
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 </tr>
 <tr>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>9</span></p>
  </td>
  <td width=98 style='width:73.2pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>WHILE</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>10</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>DO</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>11</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>READ</span></p>
  </td>
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  padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>12</span></p>
  </td>
  <td width=69 style='width:51.95pt;border:none;border-bottom:solid windowtext .5pt;
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  padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>WRITE</span></p>
  </td>
 </tr>
 <tr>
  <td width=55 style='width:41.4pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>13</span></p>
  </td>
  <td width=98 style='width:73.2pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>BEGIN</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>14</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>END</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>15</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>ODD</span></p>
  </td>
  <td width=69 style='width:51.95pt;border-top:none;border-left:none;
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  padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>16</span></p>
  </td>
  <td width=69 style='width:51.95pt;border:none;border-bottom:solid windowtext .5pt;
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  padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>+</span></p>
  </td>
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 <tr>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>17</span></p>
  </td>
  <td width=98 style='width:73.2pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>-</span></p>
  </td>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>18</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>*</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>19</span></p>
  </td>
  <td width=69 style='width:51.9pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>/</span></p>
  </td>
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  padding:0cm 5.4pt 0cm 5.4pt'>
  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>20</span></p>
  </td>
  <td width=69 style='width:51.95pt;border:none;border-bottom:solid windowtext .5pt;
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>=</span></p>
  </td>
 </tr>
 <tr>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>21</span></p>
  </td>
  <td width=98 style='width:73.2pt;border-top:none;border-left:none;border-bottom:
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span
  lang=EN-US>&lt;&gt;</span></p>
  </td>
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  <p class=MsoNormal align=center style='text-align:center;line-height:150%'><span