所遇問題：
在mac環境下安裝bee工具的時候報錯
go get github.com/beego/bee
go: finding github.com/derekparker/delve/service/rpccommon latest
go: finding github.com/derekparker/delve/service latest
go: finding github.com/derekparker/delve/terminal latest
go: finding github.com/derekparker/delve/service/rpc2 latest
go: github.com/derekparker/delve@v1.2.0: parsing go.mod: unexpected module path "github.com/go-delve/delve"
go: error loading module requirements
go get github.com/beego/bee go: finding github.com/derekparker/delve/service/rpccommon latest go: finding github.com/derekparker/delve/service latest go: finding github.com/derekparker/delve/terminal latest go: finding github.com/derekparker/delve/service/rpc2 latest go: github.com/derekparker/delve@v1.2.0: parsing go.mod: unexpected module path "github.com/go-delve/delve" go: error loading module requirements
解決辦法：
一、創建一個 go mod 下的文件夾
mkdir test
cd test
go mod init test
二、在 go.mod 內把 bee 的源替換掉，如下所示：
github.com/realguan/bee 是我 fork 了 github.com/beego/bee 的源碼，進行了源代碼更改：
module test replace github.com/beego/bee v1.10.0 => github.com/realguan/bee v1.12.1 go 1.12
三、開始正式安裝 beego 和 bee
export GOPROXY=https://goproxy.io
go get -u github.com/astaxie/beego go get -u github.com/beego/bee
以上如果沒報錯，那就成功了。