擅长:python、mysql、java
<p>用正则表达式怎么样?示例:</p>
<p>你知道吗温度.txt你知道吗</p>
<pre><code>print "I've got a lovely bunch of coconuts"
var beforeDate = new Date('2015-08-21') #date determined by fair die roll
print "Here they are, standing in a row"
</code></pre>
<p>你知道吗主.py你知道吗</p>
<pre><code>import re
new_value = "'1999-12-31'"
with open("temp.txt") as infile:
data = infile.read()
data = re.sub(r"(var beforeDate = new Date\().*?(\))", "\\1"+new_value+"\\2", data)
with open("output.txt", "w") as outfile:
outfile.write(data)
</code></pre>
<p>你知道吗输出.txt运行后:</p>
<pre><code>print "I've got a lovely bunch of coconuts"
var beforeDate = new Date('1999-12-31') #date determined by fair die roll
print "Here they are, standing in a row"
</code></pre>