先安装go环境

https://blog.csdn.net/csl12919/article/details/128372584?csdn_share_tail=%7B%22type%22%3A%22blog%22%2C%22rType%22%3A%22article%22%2C%22rId%22%3A%22128372584%22%2C%22source%22%3A%22csl12919%22%7Dhttps://blog.csdn.net/csl12919/article/details/128372584?csdn_share_tail=%7B%22type%22%3A%22blog%22%2C%22rType%22%3A%22article%22%2C%22rId%22%3A%22128372584%22%2C%22source%22%3A%22csl12919%22%7D

go : 无法将“go”项识别为 cmdlet、函数、脚本文件或可运行程序的名称。请检查名称的拼写，如果包
括路径，请确保路径正确，然后再试一次。
所在位置 行:1 字符: 1
+ go run main.go
+ ~~
    + CategoryInfo          : ObjectNotFound: (go:String) [], CommandNotFoundException
    + FullyQualifiedErrorId : CommandNotFoundException

原因分析

Go安装路径发生变化。

解决方案

 在VS Code终端（PowerShell实例）中运行以下命令，使当前的PowerShell实例从计算机加载最新的路径变量。

 $env:Path = [System.Environment]::GetEnvironmentVariable("Path","Machine")

vscode 安装