Go language implements a Polymorphic function instance in C + + _golang

Objective

As a new comer in the programming language, go language is a good development language, while paying attention to the efficiency of development while paying attention to the efficiency while absorbing the individuality. In the go, there is no concept of a class, but it can still be used struct+interface to implement the functionality of the class, and the following simple example demonstrates how to use go to simulate polymorphic behavior in C + +.

Sample code

Package main
 
 
import "OS"
import "FMT"
 
 
type Human interface {
  SayHello ()
}
 
 
type Chinese struct {
  name string
}
 
 
type 中文版 struct {
  name string
}
 
 
func (c *chinese) SayHello () C18/>fmt. Println (c.name, "Say Hello, World")
}
 
 
func (e *english) SayHello () {
  fmt. Println (e.name, "Says:hello,world")
}
 
 
func main () {
  fmt. Println (len (OS). Args))
   
  c: = chinese{"Doggy Man"}
  e: = english{"Jorn"}
  m: = map[int]human{}
   
  m[0] = &c
  m[1] = & E for
   
  i:=0;i<2;i++ {
    M[i].sayhello ()
  }
}

Summarize

From the above example, it is very simple to implement polymorphism in C + + in Go, as long as the same interface is implemented.