擅长:python、mysql、java
<p>您可以使用正则表达式</p>
<pre><code>import re
text = """
2012-02-03 18:35:34 SampleClass6 [INFO] everything normal for id 174025851
2012-02-03 18:35:34 SampleClass4 [FATAL] system problem at id 1991740254
2012-02-03 18:35:34 SampleClass3 [DEBUG] detail for id 1304807656
2012-02-03 18:35:34 SampleClass3 [WARN] missing id 1740
"""
# the \s means the char after 0 must be a space, tab or newline (so, not a number)
p = re.compile(r'.*id 1740\s')
ls = p.findall(text)
</code></pre>