擅长:python、mysql、java
<p>在不做太多更改的情况下,您是否可以将一个temp变量保留在存储前一行的for循环之外</p>
<pre><code>prevLine = ""
for line in itertools.takewhile(lambda x: seguir, lectura):
<check that prevLine is not empty string as it will be on first iteration>
<do oepration involving prevLine>
data3 = strintodate(line[1])
data4 = strintodate(line[2])
if data2 < data4:
seguir = False
escritura.writerow([programa + 1, data2, data2, line[4]])
prevLine = line
</code></pre>