money.go 源码
// Copyright © 2018 Inanc Gumus
// Learn Go Programming Course
// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
//
// For more tutorials : https://learngoprogramming.com
// In-person training : https://www.linkedin.com/in/inancgumus/
// Follow me on twitter: https://twitter.com/inancgumus
package main
import "fmt"
type money float64
// String() returns a string representation of money.
// money is an fmt.Stringer.
func (m money) String() string {
return fmt.Sprintf("$%.2f", m)
}
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