go | 12 struct

1、结构体定义

package main
import "fmt"
// 类型
type myint int
// 结构体
type Book struct {
    title string
    auth string
}
func updbook(book Book)  {
    book.auth = "小明"
}
func updbookPr(book *Book)  {
    book.auth = "小明"
}
func main()  {
    var a myint = 10
    fmt.Println("a=",a)
    fmt.Printf("type of a = %T\n",a)
    var book Book;
    book.title = "标题"
    book.auth = "作者"
    fmt.Println("init :",book)
    //修改
    updbook(book)
    fmt.Println("upd auth :",book)
    //修改
    updbookPr(&book)
    fmt.Println("upd auth pr:",book)
}

结果：

2、类定义

package main
import "fmt"
//定义一个结构体
type People struct{
    id string
    name string
}
//----------------------------------------------
//定义一个方法，绑定结构体People
func (this People) show()  {
    fmt.Println("id = ",this.id)
    fmt.Println("name =",this.name)
}
//getName
func (this People) getName() string {
    return this.name
}
//setName
func (this People) setName(fName string)  {
    this.name = fName
}
//--------------------------------------------
//定义一个方法，绑定结构体People
func (this *People) showPr()  {
    fmt.Println("id = ",this.id)
    fmt.Println("name =",this.name)
}
//getName
func (this *People) getNamePr() string {
    return this.name
}
//setName
func (this *People) setNamePr(fName string)  {
    this.name = fName
}
func main()  {
    //定义一个对象
    p := People{id: "p1",name: "小明"}
    p.show()
    p.setName("小红")
    p.show()
    p.setNamePr("小红")
    p.showPr()
}

结果：