文章目录 参考描述Counter 模块Counter() 类Counter() 对象字典有序性KeyError魔术方法 \\_\\_missing\\_\\_ update() 方法 Counter 对象的常用方法most_common()elements()total()subtract() Counter 对象间的运算
I was sure for a long time that the answer is yes. But after I\'ve read this article: http://javablog.co.uk/2007/08/09/how-midlet-signing-is-killing-j2me/