首先，请务必阅读并理解如何编写Go代码" 文档.

First, be sure to read and understand the "How to write Go code" document.

实际答案取决于您的自定义程序包"的性质.

The actual answer depends on the nature of your "custom package".

如果打算用于一般用途，请考虑使用所谓的"Github代码布局" .基本上，您将库设为一个单独的go get -table项目.

If it's intended to be of general use, consider employing the so-called "Github code layout". Basically, you make your library a separate go get-table project.

如果您的库供内部使用，则可以这样:

If your library is for internal use, you could go like this:

1. 将包含库文件的目录放置在项目目录下.
2. 在项目的其余部分，请使用相对于包含该项目的工作空间的根目录的路径来引用该库.

演示:

src/
  myproject/
    mylib/
      mylib.go
      ...
    main.go

现在，在***main.go中，您可以import "myproject/mylib"，它将正常运行.

Now, in the top-level main.go, you could import "myproject/mylib" and it would work OK.