First glance in Go

This is a creation in Article, where the information may have evolved or changed.

Because I forgot to install the Chinese input in this OS, I has to use 中文版 input.

The first problem which I ran into was "how to import the local file in Golang"

First, it may is my fault but I really didn ' t see any documents say so if you want to import a local file in another Go File, you should create a folder to put the imported file. Below is my case:

I created a file said "Example2.go", then typed some codes:

int int {    return A + B}

I wanted to import it in another file said "Example1.go"

Package Mainimport (        "fmt"        "./example2"        ) Func main () {    fmt. Println ("Hello go! " )    FMT. Println (example2. ADD (1,2))}

When I tried to run the Example1.go file, the go runtime threw an error said "couldn ' t find the example2". What ' s the problem? Is Gopath not set? Is Example2.go not compiled? Finally, I found it is the folder structure problem. My orignal folder structure likes this

GOWORKSPACE-PKG-SRC    -Example1.go    -Example2.go-bin

But Go 1.4 doesn ' t support import a single file as a package. So I had to put the ' Example2.go ' in a folder said "Package2"

GOWORKSPACE-PKG-SRC    -Example1.go    -Package2        -Example2.go-bin

Then change the code

Package Mainimport (        "fmt"        "package2 "        ) Func main () {    fmt. Println ("Hello go! " )    FMT. Println (example2. ADD (1,2))}

It works. So it means a, refers to a, folder in the Golang.