go建造者模式，【go设计模式】

直接代码：

ackage mainimport "fmt"//现在有教室和宿舍，教室两扇们，窗户高两米, 宿舍一扇门，窗户高一米type Room struct {    doorNum      int     windowHeight int }func (r *Room) showRoomInfo() {    fmt.Println("door num:", r.doorNum, "door windowHeight:", r.windowHeight)}type RoomBuilder interface {    build() *Room}func BuildRoom(builder RoomBuilder) *Room {    return builder.build()}type Cla***oomBuilder struct {}func (*Cla***oomBuilder) build() *Room {    return &Room{2, 2}}type DormitoryBuilder struct {}func (*DormitoryBuilder) build() *Room {    return &Room{1, 1}}func main() {    room := BuildRoom(&Cla***oomBuilder{})    room.showRoomInfo()    room = BuildRoom(&DormitoryBuilder{})    room.showRoomInfo()    //同理我们需要一个客厅一个门没有窗户，就可以写一个客厅的builder    //此处例子很简单，而实际中build函数可能处理很复杂的事，通过builder模式可以把具体的    //实例与创建过程分开,如此容易扩展与替换创建过程}github长期更新：https://github.com/fanux/gopatterns