go-golang言語の初体験を探る

#   go-golang     
2018/11/6


###    
**  **

       golang.org   ，，      ，           。
mac:
```bash
# wget https://dl.google.com/go/go1.11.1.darwin-amd64.pkg
```

linux:
```bash
# wget https://dl.google.com/go/go1.11.1.linux-amd64.tar.gz
# tar -C /usr/local -xzf go1.9.2.linux-amd64.tar.gz
```

    ：
```bash
# cat </etc/profile
###golang
export GOPATH=/opt/go
export GOROOT=/usr/local/go
export PATH=$PATH:$GOROOT/bin:$GOPATH/bin
_EOF

# source /etc/profile
```

**  **
```bash
# go tool tour &
```
  ：http://127.0.0.1:3999/

**     go      **
```bash
# go env
```


**     **
```bash
# mkdir -p $GOPATH/src/github.com/opera443399/cmd
# cd $GOPATH/src/github.com/opera443399/cmd

# mkdir hello
# vim hello/app1.go
package main

import "fmt"

func main() {
  fmt.Printf("Hello, world.
")
}


# go run hello/app1.go
Hello, world.
```

**    **
```bash
# mkdir stringutil
# vim stringutil/reverse.go
// Package stringutil contains utility functions for working with strings.
package stringutil

// Reverse returns its argument string reversed rune-wise left to right.
func Reverse(s string) string {
	r := []rune(s)
	for i, j := 0, len(r)-1; i = Go 1.4.  ](http://blog.csdn.net/qq_15437667/article/details/59776840)
4. [    golang.org         ？](https://gocn.io/question/362)
5. [a-channel-compendium-for-golang](http://tonybai.com/2014/09/29/a-channel-compendium-for-golang/)
6. [a-channel-compendium-for-golang](http://tonybai.com/2014/09/29/a-channel-compendium-for-golang/)
7. [understanding-import-packages](http://tonybai.com/2015/03/09/understanding-import-packages/)
8. [understand-go15-vendor](http://tonybai.com/2015/07/31/understand-go15-vendor/)
9. [7-things-you-may-not-pay-attation-to-in-go](http://tonybai.com/2015/09/17/7-things-you-may-not-pay-attation-to-in-go/)
10. [how-to-use-timer-reset-in-golang-correctly](http://tonybai.com/2016/12/21/how-to-use-timer-reset-in-golang-correctly/)