package main

import (
    ...
    "github.com/parkingwang/gotools/clihelper"
)

var extra  = map[string]clihelper.Extra{
    "tablename": clihelper.Extra{
        Name:  "t",
        Value: "",
        Usage: "migrate table name",
        Data:  new(string),
    },
    "operatename": clihelper.Extra{
        Name:  "op",
        Value: "",
        Usage: "migrate operate name",
        Data:  new(string),
    },
}

func init(){
    params = clihelper.NewParams()
    params.Hook(extra)
    params.Parse()
    ...
}