朴素贝叶斯文本分类的算法实现，将文本转化为矩阵结构然后对矩阵做运算-Naive Bayes text classification algorithm, the text is converted to a matrix structure and then do the calculation matrix

朴素贝叶斯分类分为两步： ① 计算特征项和所属类别之间的概率; ② 判断文本dj是否属于类别ci的概率 本代码为训练阶段(Naive Bayes classification is divided into two steps: 1 Calculate the probability between the feature item and its own category; 2 The probability of judging whether the text dj belong