"鏄庢槑鐢ㄤ簡绾跨▼瀹夊叏鐨刅ector锛屼负鍟ユ暟鎹繕鏄帿鍚嶅叾濡欏皯浜嗗嚑鏉★紵" 杩欐槸鎴戝湪鏌愭涓婄嚎浜嬫晠鍚庡鐫€鏃ュ織鎶撶媯鐨勭湡瀹炲満鏅€備粖澶╁挶浠氨鐢ㄤ笁涓湡瀹炴渚嬶紝鎵嬫妸鎵嬫暀浣犻┋鏈嶈繖涓湅浼煎畨鍏ㄥ疄鍒欐殫钘忕巹鏈虹殑瀹瑰櫒銆?/p>

鍦烘櫙涓€锛氱數鍟嗙鏉€绯荤粺锛堝熀纭€鐗堝悓姝ラ攣锛?/h3>

鈥?strong>鈥嬮棶棰橀噸鐜扳€?/strong>鈥?br/> 30涓敤鎴峰悓鏃舵姠璐?0浠跺晢鍝侊紝搴撳瓨鏄剧ず-5浠躲€傛鏌ヤ唬鐮佸彂鐜帮細

java澶嶅埗
// 閿欒绀鸿寖锛?/span>
if(vector.size()>0){
    vector.remove(0); // 杩欓噷鍙兘琚叾浠栫嚎绋嬫墦鏂?/span>
}

鈥?strong>鈥嬭娉暀璁€?/strong>鈥?br/> 灏辩畻鐢╒ector锛屸€?strong>鈥嬪涓搷浣滀箣闂寸殑闂撮殭鈥?/strong>鈥嬩篃浼氳鍏朵粬绾跨▼閽荤┖瀛愩€傚氨鍍忚秴甯傛敹閾讹紝鎵爜鍜屾敹娆句袱涓姩浣滀笉杩炵画锛屽氨鍙兘琚彃闃熴€?/p>

鈥?strong>鈥嬫纭Э鍔库€?/strong>鈥?/p>

java澶嶅埗
synchronized(vector){
    if(!vector.isEmpty()){
        vector.remove(0);
        // 鎵ｅ噺搴撳瓨绛夊悗缁搷浣?/span>
    }
}

馃憠 鈥?strong>鈥嬪叧閿偣鈥?/strong>鈥嬶細鎶婃暣涓笟鍔￠€昏緫鍖呭湪鍚屾鍧楅噷锛屽氨鍍忕粰鏀堕摱鍙版媺闅旂甯?/p>

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鍦烘櫙浜岋細瀹炴椂鏁版嵁鐪嬫澘锛堟壒閲忔搷浣滀紭鍖栵級

鈥?strong>鈥嬮棶棰橀噸鐜扳€?/strong>鈥?br/> 鏁版嵁閲囬泦绾跨▼姣忕add()100娆★紝灞曠ず绾跨▼姣?绉掗亶鍘嗘暟鎹€傞绻佸嚭鐜癈oncurrentModificationException鎶ラ敊銆?/p>

鈥?strong>鈥嬭瘖鏂姤鍛娾€?/strong>鈥?br/> Vector铏界劧鍗曚釜鏂规硶鏄嚎绋嬪畨鍏ㄧ殑锛屼絾鈥?strong>鈥嬮亶鍘嗗拰淇敼鍚屾椂杩涜鏃垛€?/strong>鈥嬭繕鏄細缈昏溅銆傚ソ姣斿湪鐏溅琛岄┒鏃舵崲閾佽建锛屼笉鍑轰簨鎵嶆€紒

鈥?strong>鈥嬬粓鏋佹柟妗堚€?/strong>鈥?/p>

java澶嶅埗
// 浣跨敤鏃у紡鏋氫妇鍣?/span>
Enumeration en = vector.elements();
while(en.hasMoreElements()){
    Data item = en.nextElement();
    // 灞曠ず鏁版嵁...
}

// 淇敼鏁版嵁鏃?/span>
synchronized(vector){
    vector.addAll(newDataList);
}

馃憠 鈥?strong>鈥嬮粦绉戞妧鈥?/strong>鈥嬶細element()鏂规硶杩斿洖鐨勬灇涓惧櫒澶╃敓鍏峰fail-safe鐗规€?/p>

鍦烘櫙涓夛細娓告垙鏈嶅姟鍣紙楂樻€ц兘骞跺彂鎺у埗锛?/h3>

鈥?strong>鈥嬮棶棰橀噸鐜扳€?/strong>鈥?br/> 200涓帺瀹跺悓鏃剁Щ鍔紝鐢╒ector瀛樺偍鍧愭爣瀵艰嚧甯х巼鏆磋穼銆傜洃鎺ф樉绀篊PU鍦ㄧ柉鐙傚鐞嗛攣绔炰簤銆?/p>

鈥?strong>鈥嬫€ц兘鐡堕鈥?/strong>鈥?br/> 铏界劧synchronized鑳戒繚瀹夊叏锛屼絾鈥?strong>鈥嬮攣绮掑害澶ぇ鈥?/strong>鈥嬩細璁╃嚎绋嬫帓闀块槦銆傚氨鍍忚秴甯傚彧寮€涓€涓敹閾跺彴锛岄【瀹㈣兘涓嶆尋鐖嗗悧锛?/p>

鈥?strong>鈥嬬牬灞€涔嬮亾鈥?/strong>鈥?/p>

java澶嶅埗
// 鏀圭敤鍒嗘閿?/span>
ReentrantLock lock = new ReentrantLock();

void updatePosition(Player p){
    lock.lock();
    try {
        vector.set(p.id, p.position);
    } finally {
        lock.unlock();
    }
}

馃憠 鈥?strong>鈥嬫€ц兘椋炶穬鈥?/strong>鈥嬶細閿佹寔缁椂闂翠粠100ms闄嶅埌5ms锛孴PS鐩存帴缈?鍊?/p>

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鏂规硶瀵规瘮琛紙鍗冧竾绾ф暟鎹疄娴嬶級

涓汉韪╁潙瀹炲綍

鍘诲勾鍋氱墿娴佽皟搴︾郴缁熸椂锛岃嚜浠ヤ负鐢ㄤ簡Vector灏遍珮鏋曟棤蹇с€傜粨鏋滃弻鍗佷竴褰撳ぉ锛屸€?strong>鈥?00鍙拌溅杞紾PS鏁版嵁闆嗕綋閿欎贡鈥?/strong>鈥嬨€傛渶鍚庡彂鐜版槸閬嶅巻鏃剁敤澧炲己for寰幆瀵艰嚧鐨勶紝鏀规垚鑰佸紡鏋氫妇鍣ㄦ墠瑙ｅ喅銆傝鐨勬暀璁細

1. 鈥?strong>鈥嬮亶鍘嗘椂鐢ㄨ凯浠ｅ櫒蹇呮鏃犵枒鈥?/strong>鈥嬶紝蹇呴』鐢╡lement()鎴栬€呮彁鍓嶅鍒堕泦鍚?/li>
2. 鈥?strong>鈥嬫壒閲忔搷浣滆鍍忛摱琛岃浆璐︹€?/strong>鈥嬶紝鏁翠釜娴佺▼鍘熷瓙鍖?/li>
3. 鈥?strong>鈥嬫€ц兘涓嶅鍒‖鎵涒€?/strong>鈥嬶紝璇ユ崲ConcurrentHashMap鏃跺氨鎹?/li>

璁颁綇锛孷ector灏卞儚鑰佸紡淇濋櫓绠扁€斺€斿畨鍏ㄤ絾绗ㄩ噸銆傜幇鍦ㄧ煡閬撲负鍟ュぇ鍘傞潰璇曟€婚棶Vector搴曞眰浜嗗惂锛熻繖浜涘疄鎴樼粡楠屾墠鏄伩鍏嶇嚎涓婁簨鏁呯殑鐪熷浼欙紒