Scala导入多个包 [英] Scala import multiple packages

问题描述

我在自己的程序包中有一些Scala类和对象.每个包都有一个定义一些隐式的包对象，例如，import com.foo.bar._从bar包中导入所有隐式和类

I've got some Scala classes and objects, in their own packages. Each package has a package object defining some implicits, so for example import com.foo.bar._ imports all implicits and classes from the bar package

我想知道的是，有没有一种方法可以定义伞"导入，例如com.foo.all，这样

What I'd like to know is, is there a way to define an "umbrella" import, say com.foo.all, such that

import com.foo.all._

等同于

import com.foo.bar._
import com.foo.baz._
import com.foo.qux._
...

我可以理解这可能还不太清楚，但是如果考虑到我拥有大量自己的软件包的情况，这显然会更加简洁.

I can understand that this might be a little unclear, but if I we consider the case where I have a large number of my own packages, this would clearly be more concise.

推荐答案

我能想到的最短形式是:

The shortest form I can come up is:

import com.foo._, bar._, baz._, qux._

例如:

import scala.collection.mutable._, PriorityQueue._, ArrayBuffer._

编辑

也许您只想使用某些特殊的东西，如@ alex23指出的那样 ，所以您可以这样写:

Perhaps, you want to use only some particular things, as @alex23 pointed out, so you may write:

import com.foo.{foo, bar, baz}, bar._, baz._, qux._

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