瑙傚療鑰呮ā寮忚瀵熻€呮ā寮忎腑閫氬父鏈変袱绉嶆ā鍨嬶紝瑙傚療鑰呭拰琚瀵熻€呫€備粠瀛楅潰涓婄悊瑙ｏ紝灏辨槸褰撹瑙傚療瀵硅薄鍙戠敓鏌愮琛屼负鎴栧彉鍖栨椂锛屼細閫氱煡瑙傚療鑰咃紝瑙傚療鑰呮牴鎹繖绉嶈涓烘垨鍙樺寲杩涜澶勭悊銆備妇涓畝鍗曠殑鏍楀瓙馃尠锛氱幇鍦ㄦ湁涓埧涓滐紙瑙傚療鑰咃級鐨勬埧瀛愬緢鐏垎锛屼簬鏄湁涓€缇ゆ埧瀹紙瑙傚療鑰咃級鎯崇鎴垮瓙銆傛埧涓滀細鍙戝竷涓€浜涚鎴夸俊鎭紝绉熷闇€瑕佸強鏃朵簡瑙ｏ紝鐪嬫埧灏卞ソ銆俢lassLandlord{//妤间富锛堣瑙傚療锛塩onstructor(){this.observerList=[]//瑙傚療鑰呭垪琛紙绉熸埛锛墋addObserver(observer){//娣诲姞涓€涓瀵熻€咃紙绉熸埛锛塼his.observerList.push(observer);}notify(data){this.observerList.forEach(observer=>observer.update(data))}}letperson_id=1classPerson{//鎯宠绉熸埧鐨勬埧瀹紙瑙傚療鑰咃級constructor(){this.id=person_id++}update(data){console.log("Tenant"+this.id+`-鏀跺埌${data.name}锛岄┈涓婃潵鐪嬫埧锛乣)}}letlandlord=newLandlord()//鎴夸笢letperson1=newPerson()//鎴垮1letperson2=newPerson()//鎴垮2letperson3=newPerson()//鎴垮3//鎴垮璁㈤槄鎴夸笢娑堟伅.addObserver(person1)landlord.addObserver(person2)landlord.addObserver(person3)//鎴夸笢鍙戝竷淇℃伅landlord.notify({name:'甯備腑蹇冭豹瀹呯┖缃?,price:10000})/*print*///绉熷1-鏀跺埌绌虹疆甯備腑蹇冭豹瀹咃紝椹笂鏉ョ湅鎴匡紒//绉熸埛2-鎺ュ埌甯備腑蹇冭豹瀹呯┖缃紝椹笂鏉ョ湅鎴匡紒//鎴垮3-鎺ュ埌甯備腑蹇冭豹瀹呯┖缃紝绗竴鏃堕棿鏉ョ湅鎴匡紒鍙戝竷璁㈤槄鑰呮ā寮忛偅涔堜粈涔堟槸鍙戝竷璁㈤槄鑰呮ā寮忓憿锛熷啀涓句釜绠€鍗曠殑渚嬪瓙馃尠锛氭埧涓滅殑鎴垮瓙澶伀鐖嗕簡锛岃秺鏉ヨ秺澶氱殑浜烘兂瑕佽闃呯鎴夸俊鎭湅鎴裤€傛埧涓滃珜楹荤儲锛屽氨鎵句腑浠嬶紙璋冨害涓績锛夊府浠栫鐞嗐€傛埧涓滃彧闇€瑕佸彂甯冩秷鎭粰涓粙锛屽嚭绉熷鎴峰彧闇€瑕佽闃呮満鏋勭殑娑堟伅锛屾埧涓滃拰鎴垮瑙ｈ€︼紝鎴夸笢缁堜簬瀹夐潤浜唦classLandlord{//鎴夸笢锛堝彂甯冭€咃級constructor(agency){this.agency=agency}publish(type,price){this.agency.publish(type,price)//鍚戜腑浠嬪彂甯冧俊鎭瘆}letperson_id=1classPerson{//鎯宠绉熸埧瀛愮殑绉熸埛锛堣闃呰€咃級constructor(agency){this.id=person_id++this.agency=agency}subscribe(type){this.agency.subscribe(type,this);}update(type,price){console.log(`Tenant${this.id}-鏀跺埌${type}鐨勭鎴夸俊鎭紝鎴戣寰?{price}涓€涓湀寰堜究瀹滐紒`)}}classAgency{//涓粙鏈烘瀯锛堣皟搴︿腑蹇冿級constructor(){this.dispatcher={}}subscribe(type,subscriber){//璁㈤槄if(!this.dispatcher[type]){this.dispatcher[type]=[]}this.dispatcher[type].push(subscriber)}publish(type,price){//鍙戝竷letsubscribers=this.dispatcher[type]if(!subscribers||!subscribers.length)returnsubscribers.forEach(subscriber=>{璁㈡埛.up鏃ユ湡锛堢被鍨嬶紝浠锋牸锛墋锛夛紱}}letagency=newAgency()//agencyletperson1=newPerson(agency)//tenant1letperson2=newPerson(agency)//tenant2letperson3=newPerson(agency)//tenant3//绉熸埛璁㈤槄淇℃伅person1.subscribe('璞畢')person2.subscribe('璞畢')person3.subscribe('璞畢')person3.subscribe('villa')letlandlord=newLandlord(agency)//鎴夸笢//鎴夸笢鍙戝竷淇℃伅landlord.publish('璞畢',10000);landlord.publish('鍒',20000);/*print*///鎴垮1-鏀跺埌璞畢鍑虹淇℃伅锛屾垜瑙夊緱10000涓€涓湀闈炲父渚垮疁锛?/鎴垮2-鏀跺埌璞畢鍑虹淇℃伅锛岃寰?0000涓€涓湀寰堜究瀹滐紒//鎴垮3-鏀跺埌璞畢鐨勫嚭绉熶俊鎭悗锛岃寰?0000涓€涓湀寰堜究瀹滐紒//绉熷3-鏀跺埌鍒鐨勫嚭绉熶俊鎭悗锛屾垜瑙夊緱20000涓€涓湀寰堜究瀹滐紒瑙傚療鑰呮ā寮忓叿鏈夐珮鍐呰仛鐨勭壒鐐癸紝鍙€傚悎鍦ㄥ悓涓€涓ā鍧楁垨缁勪欢涓娇鐢紱褰撹鐩戞帶鐨勫璞″拰鎵ц鍔ㄤ綔涓嶅湪鍚屼竴涓ā鍧楁垨缁勪欢涓椂锛岃闃?鍙戝竷鐨勬ā寮忔瘮杈冮€傚悎锛屽彲浠ュ緢濂界殑瑙ｅ喅鑰﹀悎锛屼笉浼氱牬鍧忓寘銆傛渶鍚庯紝鎴戞槸鍓嶇鏂颁汉鍛ㄦ檽闃炽€傛垜鍐欐枃绔犺褰曡嚜宸卞湪鏃ュ父宸ヤ綔鍜屽涔犲唴瀹逛腑閬囧埌鐨勯棶棰橈紝浠ユ彁楂樿嚜宸便€傚鏋滄偍瑙夊緱鏈枃瀵规偍鏈夌敤锛岃鐐硅禐榧撳姳鐪嬬湅~
