package main

import (

    "fmt"

    flag "github.com/spf13/pflag"

)

func main() {

    home_dir:= flag.String("b","/home/default_dir","home path")

    isProdEnvironment:= flag.Bool("p", false,"environment is pord")

    int_value:= flag.Int("n",2, "pod num")

    flag.Parse()

    fmt.Println("backup_dir:",*home_dir)

    fmt.Println("isProdEnvironment",*isProdEnvironment)

    fmt.Println("int_value",*int_value)

}

D:\GoWorkspace\my-go-code\test>go run Test8.go --b "/home/back" --p true --n 8

backup_dir: /home/back

isProdEnvironment true

int_value 8

D:\GoWorkspace\my-go-code\test>

// String defines a string flag with specified name, default value, and usage string.

// The return value is the address of a string variable that stores the value of the flag.

func String(name string, value string, usage string) *string {

    return CommandLine.StringP(name, "", value, usage)

}