package main

import(
	"fmt"
	
)
var run bool=true
var userId int 
var userPwd string
func SignIn(){
	fmt.Println("please input your Id")
	fmt.Scanf("%d\n", &userId)
	fmt.Println("Please input userPwd:")
	fmt.Scanf("%s\n", &userPwd)

	login(userId,userPwd)

	
	

}
func SignUp(){

}
func Exit(){
	run=false
}
func InputError(){
	fmt.Println("you input error num,please input correct number again")
}

func main()  {
	
	for run {
		fmt.Println("communicte software")
		fmt.Println("Please select 1~3 to use it")
		fmt.Println("1.sign in")
		fmt.Println("2.sign up")
		fmt.Println("3.exit")
		var selectNum string
		fmt.Scanln(&selectNum)
		switch selectNum {
		case "1":
			SignIn()
		case "2":
			SignUp()
		case "3":
			Exit()
		default:
			InputError()
			
		}
	}
	fmt.Println("you have exit the software")
	
}