报错截图：
go: github.com/PuerkitoBio/goquery@v1.6.0: Get "https://proxy.golang.org/github.com/%21puerkito%21bio/goquery/@v/v1.6.0.mod": dial tcp 172.217.27.145:443: c
onnectex: 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.
产生原因：
你可以试着访问一下proxy.golang.org，怎么样，访问不了吧，没错，这是被我们伟大的长城防火墙给屏蔽了，你需要改成我们国内可用的代理地址
解决办法：
重新设置代理
go env -w GOPROXY=https://goproxy.cn
搞定