Go (interface)介面三

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// method project main.gopackage mainimport ("fmt")type Human struct {name  stringage   intphone string}type Student struct {Humanschool string}type Employee struct {Humancompany string}func (h *Human) SayHi() {fmt.Printf("Hi, I am %s  you can call me on %s\n", h.name, h.phone)}func (e *Employee) SayHi() {fmt.Printf("Hi, I am %s  you can call me on %s, I Work at %s\n", e.Human.name, e.phone, e.company)}type Stringer interface {String() string}func (s *Student) String() string {return fmt.Sprintf("Hi, I am %s, you can call me on %s, I study at %s\n", s.name, s.phone, s.school)}func main() {mark := Student{Human{"Mark", 25, "222-222-YYYY"}, "MIT"}sam := Employee{Human{"Sam", 45, "111-888-XXXX"}, "Golang Inc"}mark.SayHi()sam.SayHi()fmt.Println("Mark info :", mark.String())var s Stringer = &markfmt.Println(s)}

輸出:

Hi, I am Mark  you can call me on 222-222-YYYYHi, I am Sam  you can call me on 111-888-XXXX, I Work at Golang IncMark info : Hi, I am Mark, you can call me on 222-222-YYYY, I study at MITHi, I am Mark, you can call me on 222-222-YYYY, I study at MIT