擅长:python、mysql、java
<p>为了实现这个特性,您必须将<code>current_report_number</code>存储在某个地方。您可以使用python <code>pickle</code>模块来持久化<code>current_report_number</code>。
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你可以参考这个代码段</p>
<pre><code>import pickle
try:
report_id = pickle.load(open("config.dat"))
except IOError:
#First run, config file does n't exist
report_id = 0
report_id += 1
print report_id
# REPORT GEN START
# REPORT GEN END
#persist current report id
pickle.dump(report_id, open("config.dat", "w"))
</code></pre>