Bayes&KNN

初步版本
Revert "Bayes&KNN"

This reverts commit ab2ef36bff9b4070c92ae15d3b7c1e942dce99d3.
Revert "Revert "Bayes&KNN""

This reverts commit 44e3f2fbbc3560cd58d5abd643b00fa38a7527ed.
Bayes&KNN

Test for 搜狗