安装go版本

概述下载地址(官网): https://golang.org/dl/ 下载地址(国内): https://dl.gocn.io/ 想编译GO，必须先有一个GO的编译器。 创建GO的编译器： [[email protected] ~]# mkdir local [[email protected] ~]# cd local [[email protected] local]# curl -LO http

下载地址(官网):
https://golang.org/dl/

下载地址(国内):
https://dl.gocn.io/

想编译GO，必须先有一个GO的编译器。

创建GO的编译器：
[[email protected] ~]# mkdir local
[[email protected] ~]# cd local
[[email protected] local]# curl -LO https://dl.Google.com/go/go1.4.3.src.tar.gz
[[email protected] local]# tar xvf go1.4.3.src.tar.gz
[[email protected] local]# mv go go1.4.3
[[email protected] local]# cd go1.4.3/
[[email protected] go1.4.3]# cd src/
[[email protected] src]# ./make.bash
[[email protected] go1.4.3]# bin/go version
go version go1.4.3 linux/amd64

安装GO软件：
[[email protected] local]# tar xf go1.10.3.src.tar.gz
[[email protected] local]# ls
go go1.10.3.src.tar.gz go1.4.3 go1.4.3.src.tar.gz

[[email protected] local]# mv go go1.10

[[email protected] go1.10]# cd src/

[[email protected] src]# ./make.bash
Building Go cmd/dist using /root/go1.4.
ERROR: Cannot find /root/go1.4/bin/go.
Set $GOROOT_bootstrap to a working Go tree >= Go 1.4.

需要设置1.4版本的环境变量

[[email protected] src]# export GOROOT_bootstrap=/root/local/go1.4.3
[[email protected] src]# ./make.bash

[[email protected] go1.10]# bin/go version
go version go1.10.3 linux/amd64
[[email protected] local]# mv go1.10 go

初始化环境
GOROOT 放置go的标准库和工具链
$HOME/local/go (linux,mac)
c:\local\go (windows)

GOPATH 放置第三方代码和自己的工程
$HOME/go (linux,mac)
c:\go (windows)

PATH
export PATH=$GOROOT/bin:$GOPATH/bin:$PATH

[[email protected] ~]# vim ~/.bashrc
export GOROOT=/root/local/go
export GOPATH=/root/go
export PATH=$GOROOT/bin:$GOPATH/bin:$PATH

测试一个Hello World
[[email protected] go]# vim hello.go
package main

@R_301_5565@ "fmt"

func main() {
　　fmt.Println("hello golang")
}

[[email protected] go]# go run hello.go
hello golang

编译运行
go build hello.go && ./hello # 编译成.exe的文件，在windows中执行。直接编译成可执行文件。在linux中也可以直接运行 ./hello
go run hello.go #在linux中执行执行该文件

[[email protected] go]# go build hello.go
[[email protected] go]# file hello
hello: ELF 64-bit LSB executable,x86-64,version 1 (SYSV),statically linked,not stripped
[[email protected] go]# ./hello
hello golang

mac系统把程序编程成linux系统的程序：
[[email protected] go]# GOOS=linux go build hello.go 变成linux
[[email protected] go]# GOOS=windows go build hello.go 变成windows
[[email protected] go]# GOOS=darwin go build hello.go 变成mac

[[email protected] go]# GOOS=linux go build -o hello.linux hello.go
[[email protected] go]# GOOS=linux go build -o hello.lin hello.go
[[email protected] go]# GOOS=windows go build -o hello.exe hello.go
[[email protected] go]# GOOS=darwin go build -o hello.mac hello.go

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