璁頒綇,C++涓殑鍥涚嬈¤璦..
1.C. c鍩虹..
2.Object-Oriented C++ ,c++鐨勪富瑕?class ,綾誨皝瑁?緇ф壙,澶氭佺瓑.
3.Template C++ ..c++閲屽ご鐨勬硾鍨嬬紪紼?.妯℃澘緙栫▼.
4.STL.聽 鏍囧噯妯℃澘搴?.濡倂ector,queue,map絳?
榪欎釜鏉℃鎵鍙欒堪鐨?.搴斿綋鍦ㄦ璇█鍙樻崲鏃跺?楂樻晥緙栫▼瀹堝垯涔熼渶瑕佸仛鍑虹浉搴旂殑鏀瑰彉絳栫暐..渚嬪瓙:
聽聽聽 瀵瑰唴緗璞＄被鍨嬭岃█..浣跨敤 鍊間紶閫?瑕佹瘮 寮曠敤浼犻捖?鏉ョ殑楂樻晥
聽聽聽 瀵逛簬鑷畾涔夌被鑰岃█, 甯稿紩鐢ㄤ紶閫掑線寰鏇村ソ..(const class& )
聽聽聽 STL 涓岃█.鍏舵槸鍦–鎸囬拡涔嬩笂濉戦?鍥犳.鍊間紶閫?涔熷啀嬈￠傜敤..
璋ㄨ: 瀵逛簬C++楂樻晥緙栫▼鍘熷垯搴斿綋瑙嗘儏鍐佃屽畾..鍙栧喅浣跨敤C++涓殑閭ｄ竴閮ㄥ垎
- 鏉℃2 灝介噺浣跨敤const enum inline 鏇挎崲 #define 瀹?/strong>
璇瘋浣?
1.瀵逛簬鍗曠函甯擱噺,鏈濂戒互const瀵硅薄鎴杄nums 鏇挎崲鎺?#define..
濡?聽 const double PI = 3.141592653
class Test{
static const double PI;聽聽聽 //澹版槑寮?br />聽};const double Test::PI = 3.141592653;聽 //瀹氫箟寮?鍦ㄥ疄鐜版枃浠?
2. 瀵逛簬褰技鍑芥暟鐨勫畯..鏈濂芥敼鐢?inline 鍑芥暟鐨勫艦寮?鏇挎崲.
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- 鏉℃3 灝藉彲鑳界殑浣跨敤 const
聽聽聽聽聽聽聽聽 璋ㄨ:
1.灝嗘煇浜涗笢瑗垮０鏄庝負const 鍙府鍔╃紪璇戝櫒渚︽祴閿欒鐢ㄦ硶. const 鍙鏂藉姞浜庝換浣曚綔鐢ㄥ煙鐨勫璞?鍑芥暟鍙傛暟.鍑芥暟榪斿洖綾誨瀷.鎴愬憳鍑芥暟鏈綋.
濡? 鍦–++閲屽父鐢ㄧ殑 const 寮曠敤浼犲?灝卞甯?const 鎸囬拡涓鏍?涓嶄互鍓嶅嚱鏁頒慨鏀瑰叾鍊?榪欏氨寰堝ソ鐨勪繚鎶や簡.鍙傛暟鐨勫間笉鑳借淇敼.
濡? 瀹氫箟鎴恈onst 鎴愬憳鍑芥暟,鍦ㄨ鎴愬憳鍑芥暟閲?鏄笉鍏佽淇敼鎴愬憳鍙橀噺鐨?鍥犳榪欐牱涓涓帴鍙ｅ線寰鍙互鍚姩淇濇姢鏁版嵁鐨勪綔鐢?
const 寮曠敤浼犲兼椂鍊?鍙兘璋冪敤.const 鎴愬憳鍑芥暟...
const 榪斿洖鍊?寰寰浼氫綔涓烘帴鍙ｆ椂鍊?浣垮緱榪斿洖鍊間笉鍏佽琚閮ㄤ慨鏀?鍥犳涔熸槸闈炲父鏈夌敤.
STL 褰撲腑鐨刬terator..聽 const vector<int>::Iterator 琛ㄧず int * const聽聽 鎸囬拡甯擱噺.
vector<int>::const_Iterator 鍗?const int *聽 甯擱噺鎸囬拡..
2. 緙栬瘧鍣ㄥ己鍒跺疄鏂?bitwise constness. 浣嗕嬌鐢ㄦ椂鍊?搴旀敞鎰忔槸姒傚康涓婄殑甯擱噺.
mutable 灝嗛噴鏀炬帀榪欑綰︽潫..鍗?榪欎箞瀹氫箟.聽聽 mutable int size;
鍏跺畾涔夌殑鍙橀噺鍏佽鍦╟onst 鎴愬憳鍑芥暟涓簣浠ヤ慨鏀?.
3.褰揷onst 鍜?non-const 鎴愬憳鍑芥暟 鍏鋒湁絳変環瀹炵幇鏃跺?,浠on-const 鍑芥暟 璋冪敤const 鍑芥暟 鍙伩鍏嶉噸澶?
涓轟粈涔堜笉const 璋冪敤 non-const ..鍘熷洜鍦ㄤ簬.const 闇瑕佷繚璇佷笉鍏佽淇敼鎴愬憳鍙橀噺. 鑰岃皟鐢╪on-const 鎴愬憳鍑芥暟.鍒欏瓨鍦ㄥ彲鑳藉凡緇忎慨鏀逛簡鎴愬憳鍙橀噺.鍥犳榪欐槸涓縐嶄笉姝ｇ‘..
渚嬪瓙鍙叆涓嬫墍紺?
[const_cast<T&>]( static_cast<const T&>(*this) .function());聽聽 const_cast 瑙嗘儏鍐佃屽畾..濡傞渶瑕佽繑鍥炲煎幓鎺塩onst灞炴у垯灝遍渶瑕佷簡. static_cast<> 鍒欒繘琛屼竴嬈″己鍒惰漿鎹㈡垚const 寮曠敤..
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