普通的方式

package main

import (
    "fmt"
    "os"
)

func main() {
    args := os.Args
    fmt.Printf("%T\n", args)
    fmt.Println(args)
    fmt.Println(len(args))
    fmt.Println("arg 0:", args[0])
    fmt.Println("arg 1:", args[1])
    fmt.Println("arg 2:", args[2])
    for i, v := range args {
        fmt.Printf("arg %d: %s\n", i, v)
    }
}

进阶的方式

package main

import (
    "flag"
    "fmt"
)

var (
    names = flag.String("name", "boge", "many names like aaa,bbb,ccc")
    age   = flag.Int("age", 18, "people's age here")
)

func main() {
    flag.Parse()
    fmt.Printf("names type is %T\n", *names)
    fmt.Printf("age type is %T\n", *age)
    fmt.Printf("Hello, %s! You are %d years old.\n", *names, *age)
}

高阶的有cobra模块,，参考的工具有kubectl

cobra模块使用最经典的开源项目kubectl

https://github.com/kubernetes/kubectl

cobra模块下载及引用

go get -u github.com/spf13/cobra@latest

import "github.com/spf13/cobra"