Strategy妯″瀷绛栫暐妯″紡锛氭牳蹇冩€濇兂鏄湪杩愯鏃舵牴鎹満鏅€夋嫨绛栫暐銆傛帴涓嬫潵锛屾垜浠彲浠ラ€氳繃涓€涓孩缁跨伅绋嬪簭鏉ョ湅鐪嬭繖涓蹇电殑瀹炵幇銆傚湪杩欎釜渚嬪瓙涓紝鎴戜滑鍙互鐪嬪埌娴侀噺鎺у埗锛圱rafficControl锛夊喅瀹氫簡杩愯鐜鐨勪笂涓嬫枃锛屽畠鍙互閫氳繃杞崲锛坱urn锛夎繖涓柟娉曟潵鍒囨崲涓嶅悓鐨勭瓥鐣ャ€備氦閫氱伅锛圱rafficLight锛夋槸涓€涓娊璞＄殑绫荤瓥鐣ワ紝鍙互鏍规嵁鐜鐨勯渶瑕佹墿灞曞叿浣撶殑绫荤瓥鐣ャ€?/灏佽绫籘rafficControl{turn(trafficlight){returntrafficlight.trafficcolor();}}classTrafficLight{trafficcolor(){returnthis.colorDesc;}}//绛栫暐1classRedLightextendsTrafficLight{constructor(){super();杩欎釜.colorDesc="鍋滄";}}//绛栫暐2classYellowLightextendsTrafficLight{constructor(){super();this.colorDesc="绋嶇瓑";}}//绛栫暐3classGreenLightextendsTrafficLight{constructor(){super();this.colorDesc="寮€濮?;}}//usagevartrafficControl=newTrafficControl();console.log(trafficControl.turn(newRedLight()));//Stopconsole.log(trafficControl.turn(newYellowLight()));//Waitconsole.log(trafficControl.turn(newGreenLight()));//Go鐘舵€佹ā寮忥細鍏舵牳蹇冩蹇垫槸鏍规嵁涓嶅悓鐨勮繍琛屾椂鐘舵€佸垏鎹笉鍚岀殑绛栫暐銆傚畠鏄瓥鐣ユā寮忕殑鎵╁睍銆傞厭搴楅璁㈢殑璁㈠崟鐘舵€佺ず渚嬶細鍚屾牱锛屾垜浠彲浠ラ€氳繃鍦ㄧ瓥鐣ユā寮忎腑璁茬孩缁跨伅鐨勬渚嬫潵鍋氫竴浜涙敼鍔紝娣诲姞state鐘舵€侊紝鐪嬬湅浼氬彂鐢熶粈涔堛€傝繖閲屾垜浠彲浠ョ湅鍒帮紝姣忔鎵цturntoswitch锛岄殢鐫€鐘舵€佸湪绾㈤粍缁夸笁绉嶇姸鎬佷腑寰幆鏇存柊锛岀孩缁跨伅鐨勬寚绀轰篃闅忎箣鏇存柊銆傜被TrafficControl{constructor(){this.states=[newGreenLight(),newRedLight(),newYellowLight()];this.current=this.states[0];}turn(){consttotalStates=this.states.length;璁ヽurrentIndex=this.states.findIndex(light=>light===this.current);濡傛灉(currentIndex+1airplane!==plane).map(plane=>plane.coordinates);}}classAirplane{constructor(coordinates){this.coordinates=coordinates;this.trafficTower=null;}register(trafficTower){this.trafficTower=trafficTower;}requestCoordinates(){if(this.trafficTower)returnthis.trafficTower.requestCoordinates(this);杩斿洖绌哄€硷紱}}//usagevartower=newTrafficTower();varairplanes=[newAirplane(10),newAirplane(20),newAirplane(30)];airplanes.forEach(airplane=>{tower.register(airplane);});console.log(airplanes.map(airplane=>airplane.requestCoordinates()))//[[20,30],[10,30],[10,20]]鍛戒护妯″紡锛氬厑璁告垜浠皢鏉ヨ嚜鍚姩鍛戒护鎿嶄綔鐨勫璞＄殑鍛戒护銆傝繖鏍峰仛鐨勫ソ澶勬槸瀹冨杩涚▼鏈夌壒瀹氱殑鐢熷懡鍛ㄦ湡鎴栨帓闃熺殑鍛戒护锛屽畠浼氱粰鎴戜滑鏇村鐨勬帶鍒舵潈銆傚苟涓斿畠杩樻彁渚涗簡灏嗘柟娉曡皟鐢ㄤ綔涓哄弬鏁颁紶閫掔殑鑳藉姏锛岃繖鏍风殑濂藉鏄彲浠ヨ鏂规硶鎸夐渶鎵ц銆備緥濡傦紝浜嬪姟绠＄悊鍣∣perationManager鎺ユ敹鎵ц浠诲姟锛屾牴鎹笉鍚岀殑鍛戒护鎵ц锛屽鍚姩鍔ㄤ綔锛圫tartOperationCommand锛夈€佽窡韪姩浣滅姸鎬侊紙TrackOperationCommand锛夈€佸彇娑堝姩浣淐ancelOperationCommand銆傜被OperationManager{constructor(){this.operations=[];}execute(command,...args){returncommand.execute(this.operations,...args);}}classCommand{constructor(execute){this.execute=execute;}}functionStartOperationCommand(operation,id){returnnewCommand(operations=>{operations.push(id);console.log(`鎮ㄦ垚鍔熷惎鍔ㄤ簡${operation}鎿嶄綔锛屼唬鐮?{id}`);});}functionCancelOperationCommand(id){returnnewCommand(operations=>{operations=operations.filter(operation=>operation.id!==id);console.log(`浣犲彇娑堜簡鎿嶄綔浠ｅ彿${id}`);});}functionTrackOperationCommand(id){returnnewCommand(()=>console.log(`鎮ㄧ殑鎿嶄綔浠ｅ彿${id}褰撳墠姝ｅ湪鎵ц`));}varmanager=newOperationManager();manager.execute(newStartOperationCommand("Cheetah","318"));//杩斿洖锛氭偍宸叉垚鍔熷惎鍔ㄧ寧璞硅鍔紝浠ｇ爜318manager.execute(newTrackOperationCommand("318"));//杩斿洖锛氫綘鐨刟ctioncode鏄?18锛屽綋鍓嶆鍦ㄦ墽琛宮anager.execute(newCancelOperationCommand("318")));//杩斿洖锛氫綘鍙栨秷浜咥ction浠ｇ爜318鍛戒护妯″紡鍙互鍦ㄥ緢澶氫笉鍚岀殑鎯呭喌涓嬩娇鐢紝灏ゅ叾鏄湪鍒涘缓閲嶄氦浜扷I鏃讹紝姣斿缂栬緫鍣ㄤ腑鐨勬挙娑堟搷浣滐紝鍥犱负瀹冨彲浠ヨUI瀵硅薄涓庨珮搴﹁В鑰﹁涓烘搷浣滀篃鍙互鐢ㄦ潵浠ｆ浛鍥炶皟鍑芥暟锛屽洜涓哄畠鏀寔瀵硅薄涔嬮棿琛屼负鎿嶄綔鐨勬洿妯″潡鍖栦紶閫掋€傝矗浠婚摼妯″紡锛氭牳蹇冩槸灏嗚姹傜殑鍙戦€佹柟鍜屾帴鏀舵柟瑙ｈ€︺€傚畠閫氳繃瀵硅薄閾炬潵瀹炵幇锛岄摼涓殑姣忎釜瀵硅薄閮藉彲浠ュ鐞嗚姹傛垨灏嗚姹備紶閫掔粰涓嬩竴涓璞°€傝繖鏄簨浠舵崟鑾峰拰鍐掓场鐨勬柟寮忥紱jQuery鍦ㄨ矗浠婚摼涓瘡娆′篃杩斿洖涓€涓璞℃潵瀹炵幇閾惧紡璋冪敤銆傜畝鍗曠ず渚嬶細classCumulativeSum{constructor(intialValue=0){this.sum=intialValue;}add(value){this.sum+=value;褰掕繕杩欎釜锛泒}//usagevarsum=newCumulativeSum();console.log(sum.add(10).add(2).add(50).sum);//62涓粙妯″紡涓嬶紝鎴戜滑闇€瑕佸湪mesh鐜涓嬮€氳繃涓粙鍚戝涓璞′紶閫掍俊鎭紱鍛戒护妯″紡锛屾垜浠湅鍒颁簡瀵硅薄涓庡璞′箣闂寸殑淇℃伅浼犻€掞紱鏈€鍚庯紝鍦ㄨ矗浠婚摼妯″紡涓紝鎴戜滑鐪嬪埌浜嗙閬撲腑鐨勪俊鎭紶杈撱€傛墍浠ユ垜璇村畠浠槸鍋忓悜鈥滄暟鎹紶閫掆€濈殑璁捐妯″紡銆傝繖绡囨枃绔犳槸浜屾湀Day5鐨勫涔犵瑪璁般€傚唴瀹规潵鑷瀬瀹㈡椂闂淬€奐vascript杩涢樁瀹炴垬璇俱€嬶紝涓€璧疯繘姝ヰ煉煉?/p>
