新建一个java工程，添加jar包，在weka的安装目录下（weka.jar和weka-src.jar）,

以下是测试代码，使用的数据集是weka-3-7自带-Create a java project, add jar package, weka installation directory (weka.jar and weka-src.jar), the following is the test code that uses the data set is weka-3-7 comes