java路径信息

System.getProperty("user.dir")    : E:\workspace\lucene
            class.getResource("") : /E:/workspace/lucene/target/test-classes/com/hbzx/lucene/
           class.getResource("/") : /E:/workspace/lucene/target/test-classes/
           class.getResource(".") : /E:/workspace/lucene/target/test-classes/com/hbzx/lucene/
   newFile("").getAbsolutePath()  : E:\workspace\lucene
  newFile("/").getAbsolutePath()  : E:\