1、安装 VSCode 编辑器

0、环境

windows10 ，64位

1、安装 VSCode 编辑器

Visual Studio Code 官网
官网下载即可

2、安装 golang

3.1安装

go语言官网提供了不同平台的安装。
如果无法访问可访问谷歌中国官网。

3.2 设置环境变量

GOROOTGOPATH

Path

添加如下三条

go env

go

3.3 创建 hello world！

gosrchello.go

package mainimport "fmt"func main() {fmt.Printf("hello, world\n")
}

在终端运行

go run hello.go

4、安装必要的工具和插件

4.1 安装 go 的一些工具

1. 解决golang.org 连不上的问题

mkdir -p $GOPATH/src/golang.org/x
cd $GOPATH/src/golang.org/x

目录创建成功后，在x目录中执行

git clone https://github.com/golang/tools.git

安装工具包
执行

go install golang.org/x/tools/cmd/guru

报错

src\golang.org\x\tools\internal\imports\mod.go:17:2: cannot find package "golang.org/x/mod/module" in any of:D:\Go\src\golang.org\x\mod\module (from $GOROOT)      E:\Workplace\go\src\golang.org\x\mod\module (from $GOPATH)
src\golang.org\x\tools\internal\gocommand\vendor.go:16:2: cannot find package "golang.org/x/mod/semver" in any of:D:\Go\src\golang.org\x\mod\semver (from $GOROOT) E:\Workplace\go\src\golang.org\x\mod\semver (from $GOPATH)
src\golang.org\x\tools\go\packages\golist.go:27:2: cannot find package "golang.org/x/xerrors" in any of:D:\Go\src\golang.org\x\xerrors (from $GOROOT)E:\Workplace\go\src\golang.org\x\xerrors (from $GOPATH)

解决办法

cd $GOPATH/src/golang.org/x
git clone https://github.com/golang/mod.git
git clone https://github.com/golang/xerrors.git

go install golang.org/x/tools/cmd/guru

2. 安装其余插件

go install golang.org/x/tools/cmd/gorename

先go get 再 go install

go get -u -v github.com/rogpeppe/godef
go install github.com/rogpeppe/godef
go get -u -v github.com/ramya-rao-a/go-outline
go install github.com/ramya-rao-a/go-outline
go get -u -v github.com/acroca/go-symbols
go install github.com/acroca/go-symbols
go get -u -v github.com/josharian/impl
go install github.com/josharian/impl
go get -u -v github.com/sqs/goreturns
go install github.com/sqs/goreturns
go get -u -v github.com/golang/lint/golint
go install github.com/golang/lint/golint
go get -u -v github.com/cweill/gotests/gotests
go install github.com/cweill/gotests/gotests
go get -u -v github.com/nsf/gocode
go install github.com/nsf/gocode

查看bin文件夹，可以看到

安装成功

4.2 vscode 插件

1. EXTENSION

转到->扩展go

5、安装与运行 go tour

先运行如下命令

go get github.com/Go-zh/tour/gotour
gotour

按照提示

cd $GOPATH/src/golang.org/x
git clone https://github.com/golang/tour.git
go build

报错

go: golang.org/x/tools@v0.0.0-20190312164927-7b79afddac43: Get "https://proxy.golang.org/golang.org/x/tools/@v/v0.0.0-20190312164927-7b79afddac43.mod": dial tcp 172.217.160.113:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

解决办法
在 PowerShell 中设置

$env:GOPROXY = "https://goproxy.io"

再次运行

go build
go install

6、我的第一个包与测试

1. 创建包并进入该目录

$ mkdir $GOPATH/src/github.com/user/stringutil
$ cd $GOPATH/src/github.com/user/stringutil

reverse.go

// stringutil 包含有用于处理字符串的工具函数。
package stringutil// Reverse 将其实参字符串以符文为单位左右反转。
func Reverse(s string) string {r := []rune(s)for i, j := 0, len(r)-1; i < len(r)/2; i, j = i+1, j-1 {r[i], r[j] = r[j], r[i]}return string(r)
}

go buildgo installpkghello.go$GOPATH/src/github.com/user/hello

package mainimport ("fmt""github.com/user/stringutil"
)func main() {fmt.Printf(stringutil.Reverse("!oG ,olleH"))
}

4. 安装hello程序

无论是安装包还是二进制文件，go 工具都会安装它所依赖的任何东西。 因此当我们通过

cd $GOPATH/src/github.com/user/hello
go install

hellostringutil

5. 运行

运行此程序的新版本，你应该能看到一条新的，反向的信息：

6. 测试

$GOPATH/src/github.com/user/stringutil/reverse_test.go

package stringutilimport "testing"func TestReverse(t *testing.T) {cases := []struct {in, want string}{{"Hello, world", "dlrow ,olleH"},{"Hello, 世界", "界世 ,olleH"},{"", ""},}for _, c := range cases {got := Reverse(c.in)if got != c.want {t.Errorf("Reverse(%q) == %q, want %q", c.in, got, c.want)}}
}

go test

cd $GOPATH/src/github.com/user/stringutil
go test

7、问题或要点小结

buildcleandocenvbugfixfmtgenerategetinstalllistruntesttoolversionvet