type Student struct {
     Name string
     Age int
}

func main(){
     s1 := Student{}
     s1.Name="Lin"
     s1.Age=20
     fmt.Println(s1)

     s2 :=Student{
          Name:"Lee",
          Age:22,
     }
     fmt.Println(s2)

     //指向結構的指針. 傳入的參數更改到s3自身.
     s3 :=&Student{
          Name:"Wang",
          Age:22,
     }
     MakeAnStu(s3)
}

func MakeAnStu(s *Student){
     s.Age=99
}

func main(){
     a := &struct {
          Name string
          Age int
     }{
          Name: "joe",
          Age:19,
     }
}

type person struct {
     Name string
     Age int
     Contact struct {
          Phone,City string
     }
}
func main(){
     a := peroson{Name:"joe",Age:19,a.Contact.Phone="0923"
     a.Contact.City="TW"
     }
}

type person struct {
     string
     int
}

func main() {
     a := person{"joe",19}
     fmt.Println(a)
}

type person struct {
     Name string
     Age int
}

func main() {
     a := person{Name:"joe",Age:19}
     b := person{Name:"joe",Age:20}
     fmt.Println(a==b) //false
}

type human struct{
     Id int
}

type teacher struct{
     hunam
     Name string
     Age int
}
type Student struct{
     human
     Habbit
}

func main(){
a := teacher{Name:"joe",Age:22,human:human{Id:0}} //初始化

a.Name="kkk"
a.Age=13
a.human.Id=20 //a.Id=10


}