go开发环境安装

按照如下地址安装go开发环境：
https://developer.aliyun.com/article/1215978

如果提示：“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.”，可以按照如下网址添加代理：https://blog.csdn.net/xiaobinqt/article/details/115822624

go env -w GOPROXY=https://goproxy.cn