<p>正如我读到的,<code>(dog|cat)food</code>将查找<code>dog food</code>和{<cd3>},但我无法在我的案例中重现它。在</p>
<pre><code>>>> for m in re.findall('RA[a-zA-Z0-9]*',"RAJA45909"):
print(m)
RAJA45909
>>> for m in re.findall('(ra|RA)[a-zA-Z0-9]*',"RAJA45909"):
print(m)
RA
>>>
</code></pre>
<p>有人能帮我理解一下吗。在</p>