安装go
新建项目目录
cmd切换到项目目录
go env -w GOPROXY=https://goproxy.io,direct 更改代理地址
go mod init packagename 项目初始化，packagename 为包名
go mod vendor 安装下载第三方包
操作例子:
C:\Users\Administrator>d:
D:\>cd goproject
D:\goproject>cd ad
D:\goproject\ad>go mod init ad
go: creating new go.mod: module ad
go: to add module requirements and sums:
go mod tidy
D:\goproject\ad>go mod vendor
go: finding module for package github.com/gocolly/colly
go: finding module for package github.com/PuerkitoBio/goquery
ad imports
github.com/PuerkitoBio/goquery: module github.com/PuerkitoBio/goquery: Get "https://proxy.golang.org/github.com/%21puerkito%21bio/goquery/@v/list": dial tcp 216.58.200.241:443: 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.
ad imports
github.com/gocolly/colly: module github.com/gocolly/colly: Get "https://proxy.golang.org/github.com/gocolly/colly/@v/list": dial tcp 216.58.200.241:443: 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.
D:\goproject\ad>go env -w GOPROXY=https://goproxy.io,direct
D:\goproject\ad>go mod vendor
go: finding module for package github.com/PuerkitoBio/goquery
go: finding module for package github.com/gocolly/colly
go: downloading github.com/PuerkitoBio/goquery v1.7.1
go: downloading github.com/gocolly/colly v1.2.0
go: found github.com/PuerkitoBio/goquery in github.com/PuerkitoBio/goquery v1.7.1
go: found github.com/gocolly/colly in github.com/gocolly/colly v1.2.0
go: downloading golang.org/x/net v0.0.0-20210614182718-04defd469f4e
go: downloading github.com/andybalholm/cascadia v1.2.0
go: downloading golang.org/x/text v0.3.6
go: finding module for package google.golang.org/appengine/urlfetch
go: finding module for package github.com/gobwas/glob
go: finding module for package github.com/antchfx/xmlquery
go: finding module for package github.com/saintfish/chardet
go: finding module for package github.com/kennygrant/sanitize
go: finding module for package github.com/antchfx/htmlquery
go: finding module for package github.com/temoto/robotstxt
go: downloading github.com/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca
go: downloading github.com/kennygrant/sanitize v1.2.4
go: downloading github.com/gobwas/glob v0.2.3
go: downloading google.golang.org/appengine v1.6.7
go: downloading github.com/antchfx/xmlquery v1.3.7
go: downloading github.com/temoto/robotstxt v1.1.2
go: downloading github.com/antchfx/htmlquery v1.2.4
go: found github.com/antchfx/htmlquery in github.com/antchfx/htmlquery v1.2.4
go: found github.com/antchfx/xmlquery in github.com/antchfx/xmlquery v1.3.7
go: found github.com/gobwas/glob in github.com/gobwas/glob v0.2.3
go: found github.com/kennygrant/sanitize in github.com/kennygrant/sanitize v1.2.4
go: found github.com/saintfish/chardet in github.com/saintfish/chardet v0.0.0-20120816061221-3af4cd4741ca
go: found github.com/temoto/robotstxt in github.com/temoto/robotstxt v1.1.2
go: found google.golang.org/appengine/urlfetch in google.golang.org/appengine v1.6.7
go: downloading github.com/antchfx/xpath v1.2.0
go: downloading github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e
go: downloading github.com/golang/protobuf v1.3.1
D:\goproject\ad>