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鍦ㄦ墍鏈夌殑棰勫鐞嗘寚浠や腑錛?span lang="EN-US">#Pragma 鎸囦護(hù)鍙兘鏄渶澶嶆潅鐨勪簡(jiǎn)錛屽畠鐨勪綔鐢ㄦ槸璁懼畾緙栬瘧鍣ㄧ殑鐘舵佹垨鑰呮槸鎸囩ず緙栬瘧鍣ㄥ畬鎴愪竴浜涚壒瀹氱殑鍔ㄤ綔銆?pragma鎸囦護(hù)瀵規(guī)瘡涓紪璇戝櫒緇欏嚭浜?jiǎn)涓涓柟娉?鍦ㄤ繚鎸佷笌C鍜孋++璇█瀹屽叏鍏煎鐨勬儏鍐典笅,緇欏嚭涓繪満鎴栨搷浣滅郴緇熶笓鏈夌殑鐗瑰緛銆備緷鎹畾涔?緙栬瘧鎸囩ず鏄満鍣ㄦ垨鎿嶄綔緋葷粺涓撴湁鐨?涓斿浜庢瘡涓紪璇戝櫒閮芥槸涓嶅悓鐨勩?
鍏舵牸寮忎竴鑸負(fù): #Pragma Para
鍏朵腑Para 涓哄弬鏁幫紝涓嬮潰鏉ョ湅涓浜涘父鐢ㄧ殑鍙傛暟銆?
(1)message 鍙傛暟銆?Message 鍙傛暟鏄垜鏈鍠滄鐨勪竴涓弬鏁幫紝瀹冭兘澶熷湪緙栬瘧淇℃伅杈撳嚭紿?
鍙ｄ腑杈撳嚭鐩稿簲鐨勪俊鎭紝榪欏浜庢簮浠ｇ爜淇℃伅鐨勬帶鍒舵槸闈炲父閲嶈鐨勩傚叾浣跨敤鏂規(guī)硶涓猴細(xì)
#Pragma message(鈥滄秷鎭枃鏈?
褰撶紪璇戝櫒閬囧埌榪欐潯鎸囦護(hù)鏃跺氨鍦ㄧ紪璇戣緭鍑虹獥鍙ｄ腑灝嗘秷鎭枃鏈墦鍗板嚭鏉ャ?
褰撴垜浠湪紼嬪簭涓畾涔変簡(jiǎn)璁稿瀹忔潵鎺у埗婧愪唬鐮佺増鏈殑鏃跺欙紝鎴戜滑鑷繁鏈夊彲鑳介兘浼?xì)蹇樿鏈夋病鏈夋纭殑璁揪|繖浜涘畯錛屾鏃舵垜浠彲浠ョ敤榪欐潯鎸囦護(hù)鍦ㄧ紪璇戠殑鏃跺欏氨榪涜媯(gè)鏌ャ傚亣璁炬垜浠笇鏈涘垽鏂嚜宸辨湁娌℃湁鍦ㄦ簮浠ｇ爜鐨勪粈涔堝湴鏂瑰畾涔変簡(jiǎn)_X86榪欎釜瀹忓彲浠ョ敤涓嬮潰鐨勬柟娉?
#ifdef _X86
#Pragma message(鈥淿X86 macro activated!鈥?
#endif
褰撴垜浠畾涔変簡(jiǎn)_X86榪欎釜瀹忎互鍚庯紝搴旂敤紼嬪簭鍦ㄧ紪璇戞椂灝變細(xì)鍦ㄧ紪璇戣緭鍑虹獥鍙ｉ噷鏄劇ず鈥淿
X86 macro activated!鈥濄傛垜浠氨涓嶄細(xì)鍥犱負(fù)涓嶈寰楄嚜宸卞畾涔夌殑涓浜涚壒瀹氱殑瀹忚屾姄鑰蟲尃鑵簡(jiǎn)
銆?
(2)鍙︿竴涓嬌鐢ㄥ緱姣旇緝澶氱殑pragma鍙傛暟鏄痗ode_seg銆傛牸寮忓錛?
#pragma code_seg( ["section-name"[,"section-class"] ] )
瀹冭兘澶熻緗▼搴忎腑鍑芥暟浠ｇ爜瀛樻斁鐨勪唬鐮佹錛屽綋鎴戜滑寮鍙戦┍鍔ㄧ▼搴忕殑鏃跺欏氨浼?xì)鋴社敤鍒板畠銆?
(3)#pragma once (姣旇緝甯哥敤錛?
鍙鍦ㄥご鏂囦歡鐨勬渶寮濮嬪姞鍏ヨ繖鏉℃寚浠ゅ氨鑳藉淇濊瘉澶存枃浠惰緙栬瘧涓嬈★紝榪欐潯鎸囦護(hù)瀹為檯涓婂湪VC6涓氨宸茬粡鏈変簡(jiǎn)錛屼絾鏄冭檻鍒板吋瀹規(guī)у茍娌℃湁澶鐨勪嬌鐢ㄥ畠銆?
(4)#pragma hdrstop琛ㄧず棰勭紪璇戝ご鏂囦歡鍒版涓烘錛屽悗闈㈢殑澶存枃浠朵笉榪涜棰勭紪璇戙侭CB鍙互棰勭紪璇戝ご鏂囦歡浠ュ姞蹇摼鎺ョ殑閫熷害錛屼絾濡傛灉鎵鏈夊ご鏂囦歡閮借繘琛岄緙栬瘧鍙堝彲鑳藉崰澶紓佺洏絀洪棿錛屾墍浠ヤ嬌鐢ㄨ繖涓夐」鎺掗櫎涓浜涘ご鏂囦歡銆?
鏈夋椂鍗曞厓涔嬮棿鏈変緷璧栧叧緋伙紝姣斿鍗曞厓A渚濊禆鍗曞厓B錛屾墍浠ュ崟鍏傿瑕佸厛浜庡崟鍏傾緙栬瘧銆備綘鍙互鐢?pragma startup鎸囧畾緙栬瘧浼樺厛綰э紝濡傛灉浣跨敤浜?pragma package(smart_init) 錛孊CB灝變細(xì)鏍規(guī)嵁浼樺厛綰х殑澶у皬鍏堝悗緙栬瘧銆?
(5)#pragma resource "*.dfm"琛ㄧず鎶?.dfm鏂囦歡涓殑璧勬簮鍔犲叆宸ョ▼銆?.dfm涓寘鎷獥浣?
澶栬鐨勫畾涔夈?
(6)#pragma warning( disable : 4507 34; once : 4385; error : 164 )
絳変環(huán)浜庯細(xì)
#pragma warning(disable:4507 34) // 涓嶆樉紺?507鍜?4鍙瘋鍛婁俊鎭?
#pragma warning(once:4385) // 4385鍙瘋鍛婁俊鎭粎鎶ュ憡涓嬈?
#pragma warning(error:164) // 鎶?64鍙瘋鍛婁俊鎭綔涓轟竴涓敊璇?
鍚屾椂榪欎釜pragma warning 涔熸敮鎸佸涓嬫牸寮忥細(xì)
#pragma warning( push [ ,n ] )
#pragma warning( pop )
榪欓噷n浠ｈ〃涓涓鍛婄瓑綰?1---4)銆?
#pragma warning( push )淇濆瓨鎵鏈夎鍛婁俊鎭殑鐜版湁鐨勮鍛婄姸鎬併?
#pragma warning( push, n)淇濆瓨鎵鏈夎鍛婁俊鎭殑鐜版湁鐨勮鍛婄姸鎬侊紝騫朵笖鎶婂叏灞璀﹀憡
絳夌駭璁懼畾涓簄銆?
#pragma warning( pop )鍚戞爤涓脊鍑烘渶鍚庝竴涓鍛婁俊鎭紝鍦ㄥ叆鏍堝拰鍑烘爤涔嬮棿鎵浣滅殑
涓鍒囨敼鍔ㄥ彇娑堛備緥濡傦細(xì)
#pragma warning( push )
#pragma warning( disable : 4705 )
#pragma warning( disable : 4706 )
#pragma warning( disable : 4707 )
//.......
#pragma warning( pop )
鍦ㄨ繖孌典唬鐮佺殑鏈鍚庯紝閲嶆柊淇濆瓨鎵鏈夌殑璀﹀憡淇℃伅(鍖呮嫭4705錛?706鍜?707)銆?
錛?錛塸ragma comment(...)
璇ユ寚浠ゅ皢涓涓敞閲婅褰曟斁鍏ヤ竴涓璞℃枃浠舵垨鍙墽琛屾枃浠朵腑銆?
甯哥敤鐨刲ib鍏抽敭瀛楋紝鍙互甯垜浠繛鍏ヤ竴涓簱鏂囦歡銆?o:p>
(8)#pragma pack()
鎴戜滑鐭ラ亾鍦╒C涓紝瀵逛簬鎯崇粨鏋勪綋Struct榪欐牱鐨勭被鍨嬶紝VC閲囩敤8瀛楄妭瀵歸綈鐨勬柟寮忥紝濡傛灉鎴戜滑涓嶆兂浣跨敤8瀛楄妭瀵歸綈錛堝湪緗戠粶鍙樻垚涓粡甯擱渶瑕佽繖鏍鳳級(jí)錛屾垜浠彲浠ュ湪緇撴瀯浣撳墠闈㈠姞涓?
#pragma pack(1)
struct
{
......
}
#pragma pack()
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