创建gomod项目

go mod init web01

新建main.go

package mainimport ("fmt""net/http"
)func handler(writer http.ResponseWriter, request *http.Request) {fmt.Fprintf(writer, "Hello World,%s!", request.URL.Path[1:])
}
func main() {fmt.Println("http:127.0.0.1:8080")http.HandleFunc("/", handler)http.ListenAndServe(":8080", nil)
}

创建launch.json

{// Use IntelliSense to learn about possible attributes.// Hover to view descriptions of existing attributes.// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387"version": "0.2.0","configurations": [{"name": "Launch Package","type": "go","request": "launch","mode": "auto","program": "${fileDirname}"}]
}

启动项目访问http://127.0.0.1:8080/