进口包装类型 [英] Import package & type

问题描述

这是我的问题和我的项目结构

Here is my problem and my project structure

src
|-->config
       |--> config.go
|-->otherPackage
       |--> otherFile.go
|-->main.go

我要在otherFile.go

但是当我尝试将其添加到导入中时，这些问题就出现了:

But when I tried to add it to the import here theses issues:

1. imported and not used.
2. undefined: Config

1. imported and not used.
2. undefined: Config

尽管我在函数声明中使用了它

Although I use it in the function declaration

function(target float64, entries [2]float64, config Config)

这是什么问题?

我尝试用

import (
    "fmt"
    "math"
    "../config"
)

推荐答案

您不能从包中导入".您所能做的就是导入整个程序包".这意味着，如果您import "full/import/path/of/foo"并且该程序包在开始时通过package foo声明了自己的名称为foo，则该程序包中的所有内容都必须由foo进行限定:

You cannot "import from a package". All you can do is "import the whole package". That means if you import "full/import/path/of/foo" and that package declared itself to be called foo via package foo at the beginning, then everything in this package has to be qualified by foo:

foo.Config

如果您的软件包被称为config，则比声明变量config会使整个软件包更糟:因此，您必须:

If you package is called config than declaring a variable config will shaddow the whole package: so you have to:

1. 将config变量重命名为cfg
2. 来自程序包config的引用配置，其限定名称为config.Config

1. Rename the config variable to e.g. cfg
2. Reference Config from package config with its qualified name config.Config

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