<p>刚发现我的文件的结构可能不同,我的正则表达式只是因为这种变化有时才工作。我的正则表达式是<br/>
<code>v6 = re.findall(r'(?s)----------\s*LOW VOLTAGE SUMMARY BY AREA.*?\rACTIVITY.+?',wholefile)</code></p>
<p>它当前与文件的以下部分匹配。你知道吗</p>
<pre><code>---------- LOW VOLTAGE SUMMARY BY AREA ----------
BUS NAME BASKV VOLT TIME AREA ZONE
12006 [AMISTAD 69.0] 0.971 1.8700 10 NEW MEXICO 121
11223 [WHITESA213.8] 0.918 1.9900 11 EL PASO 110
70044 [B.HYDROB4.16] 0.955 2.3233 70 PSCOLORADO 703
70044 [B.HYDROB4.16] 0.955 2.3233 70 PSCOLORADO 703
79086 [PAGOSA 115] 0.937 2.0333 73 WAPA R.M. 791
ACTIVITY?
PDEV
ENTER OUTPUT DEVICE CODE:
0 FOR NO OUTPUT
1 FOR PROGRESS WINDOW
</code></pre>
<p>不过,文件的这一部分有时如下所示</p>
<pre><code> ---------- LOW VOLTAGE SUMMARY BY AREA ----------
BUS NAME BASKV VOLT TIME AREA ZONE
12006 [AMISTAD 69.0] 0.742 13.2060 10 NEW MEXICO 121
11223 [WHITESA213.8] 0.916 1.8367 11 EL PASO 110
70187 [FTGARLND69.0] 0.936 19.6099 70 PSCOLORADO 710
73216 [WINDRIVR 115] 0.858 3.6100 73 WAPA R.M. 750
(VFSCAN) AT TIME = 20.0000 UP TO 100 BUSES WITH LOW FREQUENCY BELOW 59.600:
X ----- BUS ------ X FREQ X ----- BUS ------ X FREQ
12063 [ROSEBUD 13.8] 59.506
</code></pre>
<p>在这两种情况下,我只想捕捉以下部分:</p>
<pre><code>---------- LOW VOLTAGE SUMMARY BY AREA ----------
BUS NAME BASKV VOLT TIME AREA ZONE
12006 [AMISTAD 69.0] 0.971 1.8700 10 NEW MEXICO 121
11223 [WHITESA213.8] 0.918 1.9900 11 EL PASO 110
70044 [B.HYDROB4.16] 0.955 2.3233 70 PSCOLORADO 703
70044 [B.HYDROB4.16] 0.955 2.3233 70 PSCOLORADO 703
79086 [PAGOSA 115] 0.937 2.0333 73 WAPA R.M. 791
</code></pre>
<p>我的正则表达式如何返回上面的部分,而不管我查看的是哪个版本的文件?你知道吗</p>