<p>对Python很陌生,并且编写了一个脚本来挑选基本日志文件的某些行</p>
<p>基本上,该函数搜索文件的行,当它找到一个要输出到单独文件的行时,将其添加到一个列表中,然后再添加后面的五行。然后在另一个函数的末尾将输出到一个单独的文件。</p>
<p>接下来我要做的就是从这五行中的最后一行跳下去,而不是再重复一遍。我以为代码的最后一行可以解决问题,但不幸的是没有。</p>
<p>是否有任何推荐的for循环变体可以用于此目的?</p>
<pre><code>def readSingleDayLogs(aDir):
print 'Processing files in ' + str(aDir) + '\n'
lineNumber = 0
try:
open_aDirFile = open(aDir) #open the log file
for aLine in open_aDirFile: #total the num. lines in file
lineNumber = lineNumber + 1
lowerBound = 0
for lineIDX in range(lowerBound, lineNumber):
currentLine = linecache.getline(aDir, lineIDX)
if (bunch of logic conditions):
issueList.<a href="https://www.cnpython.com/list/append" class="inner-link">append</a>(currentLine)
for extraLineIDX in range(1, 6): #loop over the next five lines of the error and append to issue list
extraLine = linecache.getline(aDir, lineIDX+ extraLineIDX) #get the x extra line after problem line
issueList.append(extraLine)
issueList.append('\n\n')
lowerBound = lineIDX
</code></pre>
<p>您应该使用<code>while</code>循环:</p>
<pre><code>line = lowerBound
while line < lineNumber:
...
if conditions:
...
for lineIDX in range(line, line+6):
...
line = line + 6
else:
line = line + 1
</code></pre>