[STL] 绠€鍗曟竻闄ap瀵硅薄鎵€鍗犵敤鍐呭瓨

Posted 2022-09-10

鏍囩锛?a href='http://www.mamicode.com/so/1/map%e5%af%b9%e8%b1%a1' title='map瀵硅薄'>map瀵硅薄   鎸囬拡   绫诲瀷   鍐呭瓨   閲婃斁   int   鍏冪礌   vector   宕╂簝   

map.clear()

鍙槸鎶妋ap娓呯┖浜嗭紝浣嗘槸鍐呭瓨娌℃湁閲婃斁锛屽鏋滆閲婃斁鍐呭瓨涓嶆鏄clear()鎺夛紝杩樿鍜屼竴涓┖鐨刴ap鏉ヨ繘琛宻wap锛屽皢鍐呭瓨閲婃斁銆?/p>

娉ㄦ剰map涓鏋滃厓绱犱笉鏄熀鏈被鍨嬶紝涔熻杩涜鍐呭瓨閲婃斁锛屽鎸囬拡锛寁ector瑕佸挨鍏舵敞鎰忥紝鍚﹀垯map鍗犵殑鍐呭瓨澶ぇ锛屼細閫犳垚绋嬪簭宕╂簝銆?/p>

绀轰緥浠ｇ爜锛?/p>

map<string,vector<int> > empty_map1;

map1.swap(empty_map1);

map1.clear();

鎴?
StrategyMap().swap(_stg_flows);