go-Multi-File construction

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Description

Go provides the package mechanism for building library files/functions into Gopath. For modules that are only relevant to an application, it is not appropriate to put them on Gopath. But all the code goes to a go file and it's hard to read and maintain, so you can spread the code across separate responsibilities, but take the same package.

Example

There are two files: Main.go and Util.go

Main.go

package main //import "fmt"func main() {    foo()}

Util.go

package mainimport "fmt"func foo() {    fmt.Println("foo()")}

Run

$ go run main.go util.gofoo()$

Sub-directories

If you are organizing with subdirectories, no:

At this point, you can only modify the package name and only use the Gopath+package method.