擅长:python、mysql、java
<p>多亏了python的提示,我做到了:</p>
<pre><code> file1 = open("FILE1.TXT", "r")
a={}
for line1 in file1:
str = line1[:59] + line1[68:-1]
a[str] = 1
file1.close()
file2 = open("FILE2.TXT", "r")
out = open("OUTPUT.TXT", "w")
for line2 in file2:
str = line2[:59] + line2[68:-1]
if not a.has_key(str):
out.write(line2[:-1])
out.close()
file2.close()
</code></pre>
<p>对于两个大文件(2.8GB),大约需要20秒。在</p>
<p>谢谢大家!在</p>