go mod 模块模式

 启用mod模式，设置代理地址，下载模块

 go env -w GO111MODULE=on
 go env -w GOPROXY=https://goproxy.io
 go get -u -v github.com/kataras/iris

新建项目文件main.go ,package main

初始化模块

go mod init main.go

生成文件

-rw-r--r-- 1 root root     1770 Jan 26 13:13 go.mod
-rw-r--r-- 1 root root    30400 Jan 26 13:13 go.sum

[root@pss-hq13f-app09 iris-web]# cat go.mod
module main.go

go 1.15

require (
    github.com/ajg/form v1.5.1 // indirect
    github.com/andybalholm/brotli v1.0.1-0.20200619015827-c3da72aa01ed // indirect
    github.com/fasthttp-contrib/websocket v0.0.0-20160511215533-1f3b11f56072 // indirect
    github.com/google/go-querystring v1.0.0 // indirect
    github.com/gorilla/websocket v1.4.2 // indirect
    github.com/imkira/go-interpol v1.1.0 // indirect
    github.com/iris-contrib/jade v1.1.4 // indirect
    github.com/iris-contrib/schema v0.0.2 // indirect
    github.com/json-iterator/go v1.1.10 // indirect
    github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88 // indirect
    github.com/kataras/golog v0.0.18 // indirect
    github.com/kataras/iris/v12 v12.1.8
}