package mainimport "fmt"type person struct {   name     string   age      int8   gender   string   lastWord string}func New() *person {   return &person{}}func (p *person) say(w string) {   fmt.Printf("%s says %s \n", p.name, w)   p.lastWord = w}func main() {   //初始化一个struct 的几种方法   //new关键字   var liLei *person = new(person)   liLei.name = "li Lei"   liLei.say("hello")   //使用&T{...}创建struct   var hanMeiMei = &person{
  "Han MeiMei", 11, "female", ""}   hanMeiMei.say("good!")      // := 赋值   lily := &person{
  "lily", 10, "female", ""}   lily.say("wellcome")}