擅长:python、mysql、java
<p>这可以做到:</p>
<pre><code>def f(str):
s = str.split(',')
if 'aaa1' in s:
for n in s:
if n == 'aaa1': s.remove(n)
return(','.join(s))
else:
for n in s:
if 'aaa1' in n: s.remove(n)
return(','.join(s))
print(f('aaa,aaa1,aaa1.1'))
print(f('aaa,aaa1.1'))
</code></pre>
<p>输出:</p>
<pre><code>aaa,aaa1.1
aaa
</code></pre>