桥接模式
音频接口
package bridge
type Video interface {
decode(string)
}
AVI格式
package bridge
type AVI struct {}
func NewAVI() *AVI {
return &AVI{}
}
func (a *AVI)decode(name string) {
fmt.Printf("AVI 格式进行解码%s\n",name)
}
MP3格式
package bridge
type MP3 struct {}
func NewMP3() *MP3 {
return &MP3{}
}
func(m *MP3)decode(name string) {
fmt.Printf("MP3 格式进行解码%s\n",name)
}
操作系统接口
package bridge
type System interface{
play(string)
}
Windows
package bridge
type Mac struct {
video Video
}
func NewMac(video Video) System{
return &Mac{video:video}
}
func (m *Mac)play(name string) {
m.video.decode(name)
fmt.Println("Mac 开始播放音乐")
}
Linux
package bridge
type Linux struct {
video Video
}
func NewLinux(video Video) System{
return &Linux{video:video}
}
func (l *Linux)play(name string) {
l.video.decode(name)
fmt.Println("Linux 开始播放音乐")
}
测试文件
package bridge
func TestBridge(t *testing.T){
sys := NewMac(NewMP3())
sys.play("小苹果")
sys = NewLinux(NewAVI())
sys.play("偶吧刚囊死他")
}