scala,import test._ ; import test.{ClassA,ClassB}
在scala中,*不是通配符,下斜杠“_”才是通配符。因此当使用某个package所有的类时,直接使用:import test._;使用某几个时,直接使用:import test.{ClassA,ClassB}
- Do you want to use the whole package? Use
import me.test._
. - Do you want to cherry-pick only some parts of the package? Use
import me.test.{ ClassOne, classTwo }
.
参考:https://softwareengineering.stackexchange.com/questions/194686/why-does-scala-use-the-operator-for-package-import-instead-of-as-in-java