从另一个包和文件golang导入结构体 [英] Import struct from another package and file golang
问题描述
类型PriorityQueue [] * Item
type Item struct {
value string
priority int
index int
}
如果我将PriorityQueue与其所有方法放在同一个文件中,我会用
pq:=& PriorityQueue {}
我一直在寻找互联网疯子在这个简单的问题上的答案,但我还没有找到答案。我通常使用java编程,导入类是如此简单。
在Go中,您不要导入类型或函数,而是导入 packages (参见规范:导入声明)。
示例导入声明:
importcontainer / list
通过导入一个包你可以访问它的所有导出标识符,您可以将它们称为 packagename.Identifiername
,例如:
var mylist * list.List = list.New()
//或简单地说:
l:= list.New()
在导入声明中有一些技巧,例如:
import mcontainer / list
您可以使用m.Identifiername
引用导出的标识符,例如
l:= m.New()
另外做:
import。 container / list
您可以完全忽略包名:
l:=新()
<但只能使用这些在紧急情况下或有名称冲突(很少见)。
I have a problem trying to import a type from another package and file. The struct that I'm trying to import is the one underneath.
type PriorityQueue []*Item
type Item struct {
value string
priority int
index int
}
If I would put the PriorityQueue alongside with all of its methods in the same file I'd declare it with
pq:= &PriorityQueue{}
I've been searching the internet like a madman for an answer on this simple question but I have not found an answer. I usually program in java and import classes is so elementary.
In Go you don't import types or functions, you import packages (see Spec: Import declarations).
An example import declaration:
import "container/list"
And by importing a package you get access to all of its exported identifiers and you can refer to them as packagename.Identifiername
, for example:
var mylist *list.List = list.New()
// Or simply:
l := list.New()
There are some tricks in import declaration, for example by doing:
import m "container/list"
You could refer to the exported identifiers with "m.Identifiername"
, e.g.
l := m.New()
Also by doing:
import . "container/list"
You can leave out the package name completely:
l := New()
But only use these "in emergency" or when there are name collisions (which are rare).
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