擅长:python、mysql、java
<p>您可以使用<a href="http://docs.python.org/2/library/fileinput.html" rel="nofollow">fileinput</a>来执行以下操作:</p>
<pre><code>import fileinput
import sys
import os
inputFileName = "temp.csv"
outputFileName = os.path.splitext(inputFileName)[0] + "_modified.csv"
with open(outputFileName, "w") as outfile:
for line in fileinput.input(
[inputFileName],
inplace=False):
if fileinput.isfirstline():
outfile.write('Item Number,Item Description,List Price,QTY Available\n')
else:
outfile.write(line)
</code></pre>