擅长:python、mysql、java
<p>在Python 2.6或3中。*:</p>
<pre><code>import itertools
import pprint
L = [{"value1": "fssd", "value2": "dsfds", "value3": "abcd", "value4": "gk"},
{"value1": "asdasd", "value2": "asdas", "value3": "dafdd", "value4": "sdfsdf"},
{"value1": "sdfsf", "value2": "sdfsdf", "value3": "abcd", "value4": "gk"},
{"value1": "asddas", "value2": "asdsa", "value3": "abcd", "value4": "gk"},
{"value1": "asdasd", "value2": "dskksks", "value3": "ldlsld", "value4": "sdlsld"}]
getvals = operator.itemgetter('value3', 'value4')
L.sort(key=getvals)
result = []
for k, g in itertools.groupby(L, getvals):
result.append(g.next())
L[:] = result
pprint.pprint(L)
</code></pre>
<p>在python2.5中几乎相同,只是在append中必须使用g.next()而不是next(g)。在</p>