Files
learngo/interfaces/composition/product.go
2019-08-31 17:24:37 +03:00

28 lines
489 B
Go

// For more tutorials: https://blog.learngoprogramming.com
//
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
package main
import "fmt"
type product struct {
Title string
Price money
}
func (p *product) discount(ratio float64) {
p.Price *= money(1 - ratio)
}
func (p *product) sum() money {
return p.Price
}
func (p *product) String() string {
return fmt.Sprintf("%-15s: %s", p.Title, p.Price)
}