数据类型查询，非常适合初学者进行训练。 可联系字符串相关处理，和一般的逻辑处理。-Data type query, very suitable for training beginners. May contact the string-related treatment, and the general logic of the deal.

贝叶斯算法的简单实现，例子是不同天气下做出的不同出行决定做训练数据，然后将训练数据作为新数据重新分类。-The Bayesian algorithm simple to achieve, for example is to make different travel under different weather decided to do the training data, and then the training data as new data reclassified.

数据结构，二叉堆实现程序，引自余立功《算法训练教程》-Basic Data structure , implement of heap