遍历python字典几种方法总结

Original 2017-01-16 13:52:25 345
abstract:下面小编就为大家带来一篇遍历python字典几种方法总结(推荐)。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧如下所示:aDict = {'key1':'value1', 'key2':'value2', 'key3':'value3

下面小编就为大家带来一篇遍历python字典几种方法总结(推荐)。小编觉得挺不错的,现在就分享给大家,也给大家做个参考。一起跟随小编过来看看吧

如下所示:

aDict = {'key1':'value1', 'key2':'value2', 'key3':'value3'} print '-----------dict-------------' for d in aDict: print "%s:%s" %(d, aDict[d]) print '-----------item-------------' for (k,v) in aDict.items(): print '%s:%s' %(k, v) #效率最高 print '------------iteritems---------' for k,v in aDict.iteritems(): print '%s:%s' % (k, v) #最笨的方法 print '---------iterkeys---------------' for k in aDict.iterkeys(): print '%s:%s' % (k, aDict[k]) print '------------iterkeys, itervalues----------' for k,v in zip(aDict.iterkeys(), aDict.itervalues()): print '%s:%s' % (k, v)

运行结果:

-----------dict------------- key3:value3 key2:value2 key1:value1 -----------item------------- key3:value3 key2:value2 key1:value1 ------------iteritems--------- key3:value3 key2:value2 key1:value1 ---------iterkeys--------------- key3:value3 key2:value2 key1:value1 ------------iterkeys, itervalues---------- key3:value3 key2:value2 key1:value1

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