package main
import (
"fmt"
)
type USB interface {
Name() string
Connect()
}
type PhoneConnector struct {
name string
}
func (pc PhoneConnector) Name() string {
return pc.name
}
func (pc PhoneConnector) Connect() {
fmt.Println("Connected:" + pc.name)
}
func Disconnect(usb USB) {
if pc, ok := usb.(PhoneConnector); ok {
fmt.Println("a usb Disconnected , and it's name is :" + pc.name)
return
}
fmt.Println("unkown device")
}
func main() {
var iphone USB
iphone = PhoneConnector{"iphone"}
iphone.Connect()
Disconnect(iphone)
} 输出结果：
Connected:iphone a usb Disconnected , and it's name is :iphone
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