呜呜呜呜呜今天好丢人啊！
汇报的时候老师提问KNN，然后老师问K是多少，我一直当成了分成几类，全然忘记了邻居个数（不过当时学的也不扎实就是了orz）
果然不管做什么，东西做好了做扎实才是最基本的。
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hello.2heng.xin
