Go Workshop Day 0

1. Go Workshop
Day 0
2016/07/26

2. Go Workshop
3 ( ) 1
0 ( )
1 +
2 Web

3. • Go
• Web
• Go
•

4. • Go
•
•
•

5. Go
2009/11/10
...
2012/03/28 Go1
...
2015/08/19 Go1.5
2016/02/17 Go1.6
2016/07? Go1.7

6. Go 1
simple & easy
Go
•
•
•
•

7. Go 2
• import
•

8. Go 3
1
1 1
Mac Win Linux
1

9. Go
•
• (Docker, rkt)
• Worker Queue(NSQ)
• (rtop)
• CMS(Hugo)

10. Go
• Web API, Web
•
• HTML JSON XML
API
• Go
•

11. Go
• CLI ( , )
• 1
•
•

12. Go
• OS
• GC OS
•

13. Go
•
• GC
• 1MB
• Raspberry Pi

14. Go
•
• Go DSL
•
• generics

15. Go
• Docker
• Go (1.5 Go Go )
• Origami
• Web

16. the Go Way
Go

17. •
• GOPATH
•

18. • ( Windows )
• https://golang.org/dl/
• homebrew (Mac)
• brew install go
• apt, yum (Linux)
•
• ( )

19. Web
1.6
2 1.7

20. GOPATH
GOPATH Go
Go $GOPATH/src

21. GOPATH
Q.
A.
$HOME(win %HOME%)
GOPATH=$HOME/go GOPATH=$HOME

22. IDE
Editor IDE

23. IDE
(
)
• Atom
• Visual Studio Code ( )
• IntelliJ
• Vim

24. IDE
gofmt
gofmt lint

25. • Go
• GOPATH

26. mkdir $GOPATH/src/hello
mkdir $GOPATH/src/hello/greeting
cd $GOPATH/src/hello

27. greeting/greeting.go
$GOPATH/src/hello/greeting/greeting.go
package greeting
import "fmt"
func Hello(name string) string {
return fmt.Sprintf("Hello, %s!", name)
}

28. main.go
$GOPATH/src/hello/main.go
package main
import (
"fmt"
"net/http"
"hello/greeting"
)
func main(){
http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
fmt.Fprint(w, greeting.Hello("Gopher"))
})
http.ListenAndServe(":8080", nil)
}

29. Go 1.7

30. • ( )
•
• test