擅长:python、mysql、java
<p><code>with</code>语句在块结束后自动关闭文件:</p>
<pre><code>with open(filename, "w+") as dumpFile:
dump = subprocess.Popen(dumpPars, stdout=dumpFile)
dump.wait()
with open(filename, "r") as dumpFile:
# dumpFile reading code goes here
</code></pre>