klaR包与e1071包都可以做朴素贝叶斯分类，本次试验中，klaR包在使用的时候会出现警告，但不影响预测(Both the klaR package and the e1071 package can be used as a simple Bias classification. In this experiment, the klaR package will be warned when it is used, but it does not affect the prediction.