13.类的封装

package main
import "fmt"
//int别名
type myint int
//结构体
type Book struct {
    title string
    auth string
}
func change(book Book)  {
    //传递副本
    book.title="java"
}
func changeBook(book *Book) {
    //传递指针
    book.title="java"
}
func main() {
    var a myint = 10
    fmt.Println(a)
    fmt.Printf("%T\n",a)
    var book1 Book
    book1.auth="zhangsan"
    book1.title="Golang"
    fmt.Println(book1)
    change(book1)
    fmt.Println(book1)
    //传递地址
    changeBook(&book1)
    fmt.Println(book1)
}

package main
import "fmt"
//类首字母大写，表示其他包能够访问
type Hero struct {
    //如果类属性大写，表示属性是对外能够访问
    Name string
    Ad int
    Level int
}
/*
func (this Hero) Show(){
    fmt.Println(this.Name,this.Ad,this.Level)
}
func (this Hero) GetName() string  {
    return this.Name
}
func (this Hero) SetName(newName string){
    this.Name=newName
}
 */
func (this *Hero) Show(){
    fmt.Println(this.Name,this.Ad,this.Level)
}
func (this *Hero) GetName() string {
    return this.Name
}
func (this *Hero) SetName(newName string){
    this.Name=newName
}
func main() {
    hero:=Hero{
        Name: "zhangsan",
        Ad:110,
        Level:1}
    hero.Show()
    hero.SetName("lisi")
    hero.Show()
}