锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲高清自拍,亚洲国产美女久久久久,久久久欧美一区二区http://m.shnenglu.com/justin-shi/category/6151.html<font>&nbsp;</font> zh-cnWed, 20 May 2009 18:20:12 GMTWed, 20 May 2009 18:20:12 GMT60鍐嶈皥寮傚父鈥曗曡皥C++涓嶰bject Pascal涓殑鏋勯犲嚱鏁頒笌寮傚父 http://m.shnenglu.com/justin-shi/archive/2009/05/20/83429.html騫藉菇騫藉菇Tue, 19 May 2009 16:42:00 GMThttp://m.shnenglu.com/justin-shi/archive/2009/05/20/83429.htmlhttp://m.shnenglu.com/justin-shi/comments/83429.htmlhttp://m.shnenglu.com/justin-shi/archive/2009/05/20/83429.html#Feedback1http://m.shnenglu.com/justin-shi/comments/commentRss/83429.htmlhttp://m.shnenglu.com/justin-shi/services/trackbacks/83429.html鍐嶈皥寮傚父鈥曗曡皥C++涓嶰bject Pascal涓殑鏋勯犲嚱鏁頒笌寮傚父

浣滆咃細Nicrosoft(nicrosoft@sunistudio.com) 2001.9.15
涓漢涓婚〉錛歨ttp://www.sunistudio.com/nicrosoft/
涓滄棩鏂囨。錛歨ttp://www.sunistudio.com/asp/sunidoc.asp

銆銆鎴戜滑鐭ラ亾錛岀被鐨勬瀯閫犲嚱鏁版槸娌℃湁榪斿洖鍊肩殑錛屽鏋滄瀯閫犲嚱鏁版瀯閫犲璞″け璐ワ紝涓嶅彲鑳戒緷闈犺繑鍥為敊璇唬鐮併傞偅涔堬紝鍦ㄧ▼搴忎腑濡備綍鏍囪瘑鏋勯犲嚱鏁扮殑澶辮觸鍛紵鏈“鏍囧噯”鐨勬柟娉曞氨鏄細鎶涘嚭涓涓紓甯搞?/p>

銆銆鏋勯犲嚱鏁板け璐ワ紝鎰忓懗鐫瀵硅薄鐨勬瀯閫犲け璐ワ紝閭d箞鎶涘嚭寮傚父涔嬪悗錛岃繖涓?#8220;鍗婃涓嶆椿”鐨勫璞′細琚浣曞鐞嗗憿錛熻繖灝辨槸鏈枃鐨勪富棰樸?/p>

鍦–++涓紝鏋勯犲嚱鏁版姏鍑哄紓甯稿悗錛屾瀽鏋勫嚱鏁頒笉浼氳璋冪敤銆傝繖鏄悎鐞嗙殑錛屽洜涓烘鏃跺璞″茍娌℃湁琚畬鏁存瀯閫犮備篃灝辨槸璇達紝濡傛灉鏋勯犲嚱鏁板凡緇忓仛浜嗕竴浜涜濡傚垎閰嶅唴瀛樸? 鎵撳紑鏂囦歡絳夋搷浣滅殑璇濓紝閭d箞綾婚渶瑕佹湁鑷繁鐨勬垚鍛樻潵璁頒綇鍋氳繃鍝簺鍔ㄤ綔銆傚湪C++涓紝緇忓吀鐨勮В鍐蟲柟妗堟槸浣跨敤STL鐨勬爣鍑嗙被auto_ptr錛岃繖鍦ㄦ瘡涓鏈粡鍏? C++钁椾綔涓兘鏈変粙緇嶏紝鎴戝湪榪欓噷灝變笉澶氳浜嗐傚湪榪欓噷錛屾垜鎯沖啀浠嬬粛涓縐?#8220;闈炲父瑙?#8221;鐨勬柟寮忥紝鍏舵濇兂灝辨槸閬垮厤鍦ㄦ瀯閫犲嚱鏁頒腑鎶涘嚭寮傚父銆傛垜浠彲浠ュ湪綾諱腑澧炲姞涓涓? Init(); 浠ュ強 UnInit();鎴愬憳鍑芥暟鐢ㄤ簬榪涜瀹規槗浜х敓閿欒鐨勮祫婧愬垎閰嶅伐浣滐紝鑰岀湡姝g殑鏋勯犲嚱鏁頒腑鍏堝皢鎵鏈夋垚鍛樼疆涓篘ULL錛岀劧鍚庤皟鐢? Init(); 騫跺垽鏂叾榪斿洖鍊鹼紙鎴栬呮崟鎹?Init()鎶涘嚭鐨勫紓甯革級錛屽鏋淚nit();澶辮觸浜嗭紝鍒欏湪鏋勯犲嚱鏁頒腑璋冪敤 UnInit(); 騫惰緗竴涓爣蹇椾綅琛ㄦ槑鏋勯犲け璐ャ俇nInit()涓寜鐓ф垚鍛樻槸鍚︿負NULL榪涜璧勬簮鐨勯噴鏀懼伐浣溿傜ず渚嬩唬鐮佸涓嬶細
class A
{
private:
 char* str;
 int failed;

public:
 A();
 ~A();
 int Init();
 int UnInit();
 int Failed();
};

A::A()
{
 str = NULL;
 try
 {
  Init();
  failed = 0;
 }
 catch(...)
 {
  failed = 1;
  UnInit();
 }
}

A::~A()
{
 UnInit();
}

int A::Init()
{
 str = new char[10];
 strcpy(str, "ABCDEFGHI");
 throw 10;

 return 1;
}

int A::UnInit()
{
 if (!str)
 {
  delete []str;
  str = NULL;
 }

 printf("Free Resource

");
 return 1;
}

int A::Failed()
{
 return failed;
}

int main(int argc, char* argv[])
{
 A* a = new A;
 if ( a->Failed() )
  printf("failed

");
 else
  printf("succeeded

");

 delete a;

 getchar();
 return 0;
}

銆銆浣犱細鍙戠幇錛屽湪int A::Init()涓寘鍚簡throw 10;鐨勪唬鐮侊紙浜х敓涓涓紓甯革紝妯℃嫙閿欒鐨勫彂鐢燂級錛屾墽琛岀粨鏋滄槸錛?br>銆銆Free Resource
銆銆failed
銆銆Free Resource
銆銆铏界劧 UnInit();琚皟鐢ㄤ簡涓ゆ錛屼絾鏄敱浜嶶nInit();涓仛浜嗗垽鏂紙if (!str)錛夛紝鍥犳涓嶄細鍙戠敓閿欒銆傝屽鏋滄病鏈夊彂鐢熷紓甯革紙鍘繪帀 int A::Init()涓殑throw 10;浠g爜錛夛紝鎵ц緇撴灉鏄細
銆銆Succeeded
銆銆Free Resource
銆銆鍜屾甯哥殑嫻佺▼娌℃湁浠諱綍鍖哄埆銆?/p>

鍦∣bject Pascal錛圖elphi/VCL錛変腑錛岃繖涓棶棰樺氨鍙樺緱闈炲父鐨勭畝鍗曚簡錛屽洜涓?OP 瀵規瀯閫犲嚱鏁扮殑寮傚父鐨勫鐞嗕笌C++涓嶅悓錛屽湪Create鏃舵姏鍑哄紓甯稿悗錛岀紪璇戝櫒浼氳嚜鍔ㄨ皟鐢ㄦ瀽鏋勫嚱鏁癉estroy錛屽茍涓斾細鍒ゆ柇鍝簺璧勬簮琚垎閰嶄簡錛屽疄琛岃嚜鍔ㄥ洖 鏀躲傚洜姝わ紝鍏朵唬鐮佷篃鍙樺緱闈炲父綆媧侊紝濡備笅錛?br>type
  A = class
  private
銆銆str : PChar;
  public
銆銆constructor Create();
銆銆destructor Destroy(); override;
  end;

constructor A.Create();
begin
銆銆str := StrAlloc(10);
銆銆StrCopy(str, 'ABCDEFGHI');
銆銆raise Exception.Create('error');
end;

destructor A.Destroy();
begin
銆銆StrDispose(str);
銆銆WriteLn('Free Resource');
end;

var oa : A;
銆銆i : integer;
begin
銆銆try
銆銆    oa := A.Create();
銆銆    WriteLn('Succeeded');
銆銆    oa.Free();
銆銆except
銆銆    oa := nil;
銆銆    WriteLn('Failed');
銆銆end;

銆銆Read(i);
end.

銆銆鍦ㄨ繖孌典唬鐮佷腑錛屽鏋滄瀯閫犲嚱鏁版姏鍑哄紓甯革紙鍗矯reate涓惈鏈塺aise Exception.Create('error');錛夛紝鎵ц鐨勭粨鏋滄槸錛?br>銆銆Free Resource
銆銆Failed
銆銆姝ゆ椂鐨?#8220;Free Resource”杈撳嚭鏄敱緙栬瘧鍣ㄨ嚜鍔ㄨ皟鐢ㄦ瀽鏋勫嚱鏁版墍浜х敓鐨勩傝屽鏋滄瀯閫犲嚱鏁版甯歌繑鍥烇紙鍗充笉鎶涘嚭寮傚父錛夛紝鍒欐墽琛岀粨鏋滄槸錛?br>銆銆Succeeded
銆銆Free Resource
銆銆姝ゆ椂鐨?#8220;Free Resource”杈撳嚭鏄敱 oa.Free()鐨勮皟鐢ㄤ駭鐢熺殑銆?/p>

緇間笂錛孋++涓嶰bject Pascal瀵逛簬鏋勯犲嚱鏁版姏鍑哄紓甯稿悗鐨勪笉鍚屽鐞嗘柟寮忥紝鍏跺疄姝f槸涓ょ璇█鐨勮璁℃濇兂鐨勪綋鐜般侰++縐夋壙C鐨勯鏍鹼紝娉ㄩ噸鏁堢巼錛屼竴鍒囦氦緇欑▼搴忓憳鏉ユ帉鎻★紝緙栬瘧鍣ㄤ笉 浣滃浣欏姩浣溿侽bject Pascal緇ф壙Pascal鐨勯鏍鹼紝娉ㄩ噸紼嬪簭鐨勭編瀛︽剰涔夛紙涓嶅彲鍚﹁錛孭ascal浠g爜鏄叏涓栫晫鏈浼樼編鐨勪唬鐮侊級錛岀紪璇戝櫒甯姪紼嬪簭鍛樺畬鎴愬鏉傜殑宸ヤ綔銆備袱縐嶈 璦閮芥湁瀛樺湪鐨勭悊鐢憋紝閮芥湁瀛樺湪鐨勫繀瑕侊紒鑰屾帉鎻″畠浠箣闂寸殑宸埆錛岃兘璁╀綘鏇村ソ鍦版帶鍒跺畠浠紝杈懼埌鑷敱鐨勭悊鎯崇帇鍥姐?/p>




騫藉菇 2009-05-20 00:42 鍙戣〃璇勮
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[GDI+]濡備綍灝嗕竴涓僵鑹插浘鍍忚漿鎹㈡垚榛戠櫧鍥懼儚http://m.shnenglu.com/justin-shi/archive/2008/10/20/64484.html騫藉菇騫藉菇Mon, 20 Oct 2008 05:10:00 GMThttp://m.shnenglu.com/justin-shi/archive/2008/10/20/64484.htmlhttp://m.shnenglu.com/justin-shi/comments/64484.htmlhttp://m.shnenglu.com/justin-shi/archive/2008/10/20/64484.html#Feedback0http://m.shnenglu.com/justin-shi/comments/commentRss/64484.htmlhttp://m.shnenglu.com/justin-shi/services/trackbacks/64484.html褰╄壊鍥懼儚杞崲涓洪粦鐧藉浘鍍忔椂闇瑕佽綆楀浘鍍忎腑姣忓儚绱犳湁鏁堢殑浜害鍊鹼紝閫氳繃鍖歸厤鍍忕礌

浜害鍊煎彲浠ヨ交鏉捐漿鎹負榛戠櫧鍥懼儚銆?/p>

璁$畻鍍忕礌鏈夋晥鐨勪寒搴﹀煎彲浠ヤ嬌鐢ㄤ笅闈㈢殑鍏紡錛?/p>

Y=0.3RED+0.59GREEN+0.11Blue

鐒跺悗浣跨敤 Color.FromArgb(Y,Y,Y) 鏉ユ妸璁$畻鍚庣殑鍊艱漿鎹?/p>

杞崲浠g爜鍙互浣跨敤涓嬮潰鐨勬柟娉曟潵瀹炵幇錛?br>C#

 1public Bitmap ConvertToGrayscale(Bitmap source)
 2
 3{
 4
 5  Bitmap bm = new Bitmap(source.Width,source.Height);
 6
 7  for(int y=0;y<bm.Height;y++)
 8
 9  {
10
11    for(int x=0;x<bm.Width;x++)
12
13    {
14
15      Color c=source.GetPixel(x,y);
16
17      int luma = (int)(c.R*0.3 + c.G*0.59+ c.B*0.11);
18
19      bm.SetPixel(x,y,Color.FromArgb(luma,luma,luma));
20
21    }

22
23  }

24
25  return bm;
26
27}

VB
 1Public Function ConvertToGrayscale()Function ConvertToGrayscale(ByVal source As Bitmap) as Bitmap
 2
 3  Dim bm as new Bitmap(source.Width,source.Height)
 4
 5  Dim x
 6
 7  Dim y
 8
 9  For y=0 To bm.Height
10
11    For x=0 To bm.Width
12
13      Dim c as Color = source.GetPixel(x,y)
14
15      Dim luma as Integer = CInt(c.R*0.3 + c.G*0.59 + c.B*0.11)
16
17      bm.SetPixel(x,y,Color.FromArgb(luma,luma,luma)
18
19    Next
20
21  Next
22
23  Return bm
24
25End Function


騫藉菇 2008-10-20 13:10 鍙戣〃璇勮
]]>
瑙f瀽#pragma鎸囦護http://m.shnenglu.com/justin-shi/archive/2008/08/19/59319.html騫藉菇騫藉菇Tue, 19 Aug 2008 03:01:00 GMThttp://m.shnenglu.com/justin-shi/archive/2008/08/19/59319.htmlhttp://m.shnenglu.com/justin-shi/comments/59319.htmlhttp://m.shnenglu.com/justin-shi/archive/2008/08/19/59319.html#Feedback0http://m.shnenglu.com/justin-shi/comments/commentRss/59319.htmlhttp://m.shnenglu.com/justin-shi/services/trackbacks/59319.html
鍦ㄦ墍鏈夌殑棰勫鐞嗘寚浠や腑錛?Pragma 鎸囦護鍙兘鏄渶澶嶆潅鐨勪簡錛屽畠鐨勪綔鐢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鎸囦護瀵規瘡涓紪璇戝櫒緇欏嚭浜嗕竴涓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?br>鍏舵牸寮忎竴鑸負: #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?br>
(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?br>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硶涓猴細
#Pragma message(“娑堟伅鏂囨湰”)
褰撶紪璇戝櫒閬囧埌榪欐潯鎸囦護鏃跺氨鍦ㄧ紪璇戣緭鍑虹獥鍙d腑灝嗘秷鎭枃鏈墦鍗板嚭鏉ャ?br>褰撴垜浠湪紼嬪簭涓畾涔変簡璁稿瀹忔潵鎺у埗婧愪唬鐮佺増鏈殑鏃跺欙紝鎴戜滑鑷繁鏈夊彲鑳介兘浼氬繕璁版湁娌℃湁姝g‘鐨勮緗繖浜涘畯錛屾鏃舵垜浠彲浠ョ敤榪欐潯鎸囦護鍦ㄧ紪璇戠殑鏃跺欏氨榪涜媯鏌ャ傚亣璁炬垜浠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_X86榪欎釜瀹忓彲浠ョ敤涓嬮潰鐨勬柟娉?br>#ifdef _X86
#Pragma message(“_X86 macro activated!”)
#endif
褰撴垜浠畾涔変簡_X86榪欎釜瀹忎互鍚庯紝搴旂敤紼嬪簭鍦ㄧ紪璇戞椂灝變細鍦ㄧ紪璇戣緭鍑虹獥鍙i噷鏄劇ず“_
X86 macro activated!”銆傛垜浠氨涓嶄細鍥犱負涓嶈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
銆?br>
(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?br>#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▼搴忕殑鏃跺欏氨浼氫嬌鐢ㄥ埌瀹冦?br>
(3)#pragma once (姣旇緝甯哥敤錛?br>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★紝榪欐潯鎸囦護瀹為檯涓婂湪VC6涓氨宸茬粡鏈変簡錛屼絾鏄冭檻鍒板吋瀹規у茍娌℃湁澶鐨勪嬌鐢ㄥ畠銆?br>
(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灝變細鏍規嵁浼樺厛綰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?br>澶栬鐨勫畾涔夈?

(6)#pragma warning( disable : 4507 34; once : 4385; error : 164 )
絳変環浜庯細
#pragma warning(disable:4507 34) // 涓嶆樉紺?507鍜?4鍙瘋鍛婁俊鎭?br>#pragma warning(once:4385) // 4385鍙瘋鍛婁俊鎭粎鎶ュ憡涓嬈?br>#pragma warning(error:164) // 鎶?64鍙瘋鍛婁俊鎭綔涓轟竴涓敊璇?br>鍚屾椂榪欎釜pragma warning 涔熸敮鎸佸涓嬫牸寮忥細
#pragma warning( push [ ,n ] )
#pragma warning( pop )
榪欓噷n浠h〃涓涓鍛婄瓑綰?1---4)銆?br>#pragma warning( push )淇濆瓨鎵鏈夎鍛婁俊鎭殑鐜版湁鐨勮鍛婄姸鎬併?br>#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
#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?br>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?br>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?




騫藉菇 2008-08-19 11:01 鍙戣〃璇勮
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pe鐨勬牸寮?緲昏瘧)http://m.shnenglu.com/justin-shi/archive/2008/07/28/57323.html騫藉菇騫藉菇Sun, 27 Jul 2008 20:04:00 GMThttp://m.shnenglu.com/justin-shi/archive/2008/07/28/57323.htmlhttp://m.shnenglu.com/justin-shi/comments/57323.htmlhttp://m.shnenglu.com/justin-shi/archive/2008/07/28/57323.html#Feedback0http://m.shnenglu.com/justin-shi/comments/commentRss/57323.htmlhttp://m.shnenglu.com/justin-shi/services/trackbacks/57323.html

騫藉菇 2008-07-28 04:04 鍙戣〃璇勮
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闅句互蹇樻鐨刉atcom錛堣漿銆夿orland浼犲銆嬶級http://m.shnenglu.com/justin-shi/archive/2008/07/26/57224.html騫藉菇騫藉菇Sat, 26 Jul 2008 03:52:00 GMThttp://m.shnenglu.com/justin-shi/archive/2008/07/26/57224.htmlhttp://m.shnenglu.com/justin-shi/comments/57224.htmlhttp://m.shnenglu.com/justin-shi/archive/2008/07/26/57224.html#Feedback0http://m.shnenglu.com/justin-shi/comments/commentRss/57224.htmlhttp://m.shnenglu.com/justin-shi/services/trackbacks/57224.html
const DWORD ALIGN_CORRECTION    =0x1000;// this big value is e.g. needed for WATCOM compiled files
涓婄綉涓鏌ワ紝鍙戠幇WATCOM绔熺劧鏈夎繖鏍蜂竴孌典紶濂囷細


涓銆乄atcom鐨勫彂灞曞彶

        鍦ㄧ紪璇戝櫒娣鋒垬鐨勬椂浠o紝涓瀹跺姞鎷垮ぇ鐨勫皬鍏徃鍑哄搧浜哤atcom C/C++緙栬瘧鍣紝浣嗘槸浠ュ湪DOS涓嬭兘澶熶駭鐢熸渶浣沖寲紼嬪簭浠g爜闂誨悕浜庝笘鐨勶紝璁稿鍐欐父鎴忓拰DOS Extender鐨勫巶鍟嗛兘鎸囧悕瑕佷嬌鐢╓atcom C/C++錛屽洜涓轟笉璁烘槸Borland C/C++榪樻槸Visual C/C++錛屽畠浠駭鐢熺殑鏈浣沖寲紼嬪簭浠g爜閮芥瘮Watcom C/C++鐨勬渶浣沖寲紼嬪簭浠g爜宸笂涓鎴傚啀鍔犱笂褰撴椂鏈鏈夊悕鐨凞OS Extender鍘傚晢PharLap鍏徃涔熸槸浣跨敤Watcom C/C++錛屽洜姝atcom C/C++鍦ㄥ綋鏃朵笓涓氱殑C/C++紼嬪簭鍛樹互鍙婄郴緇熺▼搴忓憳蹇冧腑鏄涓鍝佺墝鐨凜/C++寮鍙戝伐鍏楓?

       Watcom C/C++鍦―OS甯傚満绔欑ǔ浜嗚剼璺熶箣鍚庯紝鐢變簬Windows宸茬粡閫愭笎鎴愪負甯傚満鐨勪富嫻侊紝DOS鍔垮繀灝嗚閫愭笎娣樻卑鍑哄眬錛屽洜姝わ紝Watcom C/C++濡傛灉瑕佺戶緇敓瀛樹笅鍘伙紝涔熷氨涓瀹氳鎺ㄥ嚭Windows騫沖彴鐨凜/C++寮鍙戝伐鍏楓傚ぇ綰︽槸鍦?993銆?994騫村乏鍙籌紝Watcom緇堜簬鎺ㄥ嚭絎竴涓猈indows涓嬬殑C/C++寮鍙戝伐鍏楓?

       涓嶈繃錛屽綋鏃禬atcom C/C++鍦╓indows鎺ㄥ嚭鐨凜/C++寮鍙戝伐鍏峰疄鍦ㄦ槸騫蟲貳鏃犲銆傚叾闆嗘垚寮鍙戠幆澧冨拰鍙﹀涓変釜瀵規墜姣旇緝璧鋒潵綆鐩村儚鏄繙鍙ょ殑浜у搧錛屼竴鐐圭壒鑹查兘娌℃湁銆備笉榪嘩atcom C/C++浠嶇劧鏄互瀹冪殑鏈浣沖寲緙栬瘧鍣ㄤ綔涓哄彿鍙傚洜姝ゅ綋鏃跺彂鐢熶簡涓涓潪甯告湁瓚g殑鐜拌薄錛岄偅灝辨槸璁稿杞歡鍏徃浼氬悓鏃朵拱Borland C/C++錛屾垨鏄疺isual C/C++錛孲ymantec C/C++涔嬩竴錛屽啀鎼厤涓濂梂atcom C/C++銆傚湪寮鍙戝簲鐢ㄧ郴緇熸椂浣跨敤鍏朵粬涓夊寮鍙戝伐鍏蜂箣涓錛屾渶鍚庤鍑鴻揣鏃跺啀浣跨敤Watcom C/C++鏉ョ紪璇戜互浜х敓鏈浣崇殑紼嬪簭浠g爜銆?

       鍦╓atcom C/C++鎺ㄥ嚭浜哤indows騫沖彴鐨勫紑鍙戝伐鍏蜂箣鍚庯紝涔熷惛寮曚簡涓緹や嬌鐢ㄨ呫傝櫧鐒禬atcom C/C++鐨勫競鍦烘瘮璧峰叾浠栫殑涓夊鏉ヨ鏄渶灝忕殑錛屼絾鏄葷畻鎾戣搗浜嗕竴鐗囧ぉ錛屾垚涓哄洓澶/C++寮鍙戝伐鍏蜂箣涓銆傜◢鍚嶹atcom C/C++琚玈ybase騫惰喘錛屾垚涓篠ybase鐨凮ptima++鐨勫墠韜?

浜屻佺煶鐮村ぉ鎯婅繕鏄法鏄熼櫒钀?

       1996騫村乏鍙籌紝Sybase騫惰喘浜哤atcom涔嬪悗緇堜簬鎺ㄥ嚭浜嗙煶鐮村ぉ鎯婄殑C/C++寮鍙戝伐鍏鳳細Optima++銆侽ptima++鏄綋鍒濈粨鍚堜簡Watcom鐨勬渶浣沖寲緙栬瘧鍣ㄤ互鍙婄被浼糄elphi鐨勭粍浠舵嫋鏇沖紑鍙戠幆澧冪殑絎竴涓猂AD C/C++寮鍙戝伐鍏楓傛洿媯掔殑鏄疧ptima++鐨勭粍浠舵灦鏋勶紙綾諱技Delphi鐨刅CL錛夊畬鍏ㄦ槸浠ョ函姝g殑C/C++紼嬪簭浠g爜鎾板啓鐨勩傝繖鍙笉寰椾簡錛屽洜涓鴻繖浠h〃Optima++鏄竴涓瀺鍚堜簡Visual C/C++鍜孌elphi涓ゅぇ鐜嬭呭紑鍙戝伐鍏蜂負涓韜殑瓚呯駭璧涗簹浜哄伐鍏楓?

       鍦ㄦ垜錛堛夿orland浼犲銆嬩綔鑰呮潕緇達紝涓嬪悓錛夌煡閬撹繖涓伐鍏楓佸茍涓斿皾璇曞疄闄呬嬌鐢ㄤ箣鍚庯紝鏋佷負闇囨儕銆傚洜涓哄浜庢垜榪欎釜浣跨敤浜咰/C++ 浜斿叚騫寸殑浜烘潵璇達紝瀹冩瘮Delphi鏇村叿鏈夊惛寮曞姏銆傚洜姝ゆ垜绔嬪埢鍦ㄣ奟UN!PC銆嬩笂浠嬬粛浜嗚繖涓笉鍙疆淇$殑宸ュ叿銆傛灉鐒訛紝Optima++寰堝揩寮濮嬮闈″競鍦猴紝铏界劧娌℃湁绔嬪埢鍗犳嵁寰堝ぇ鐨勫競鍦轟喚棰濓紝浣嗘槸宸茬粡閫犳垚浜嗕竴鑲℃皵鍔匡紝寮濮嬩負Visual C/C++鍜孌elphi甯︽潵鍘嬪姏銆?

       鎴戣寰楀綋鏃跺彴婀維ybase鍔炵殑浜у搧鍙戣〃浼氫篃鍚稿紩浜嗘暟鐧句漢涓庝細錛屼笉鍙竴涓栥傛垜鐨勬枃绔犲湪銆奟UN!PC銆?涓婂彂琛ㄤ箣鍚庯紝鍙版咕鐨凷ybase绔嬪埢鍜屾垜鑱旂粶錛岀敱褰撴椂鐨勪綑鍗忕悊鍜屾垜瑙侀潰錛屼篃鏄笇鏈涙垜緇х畫涓篛ptima++鍐欐枃绔狅紝鍙版咕Sybase涔熸彁渚涢澶栦竴瀛楀姞2鍏冪ǹ璐圭殑寰呴亣銆備絾鏄垜鍛婅瘔浣欏崗鐞嗭紝Optima++ 1.0铏界劧寰堟錛屼絾鏄粛鐒舵湁涓浜涜嚟铏紝鑰屼笖鍜屼腑鏂囩幆澧冪浉鍐茬獊錛屾棤娉曞鐞嗕腑鏂囷紝闇瑕佺珛鍒昏В鍐寵繖涓棶棰樻墠鑳藉鍦ㄥ彴婀劇殑甯傚満鎴愬姛銆傚ス絳斿簲鎴戠珛鍒誨悜鎬誨叕鍙稿弽鏄犮傛垜涔熻佸疄鍦板憡璇夊ス錛屽湪闂娌℃湁瑙e喅涔嬪墠錛屾垜鏃犳硶鍐欎竴浜涗笉紜疄鐨勪笢瑗褲傚悗鏉ュ彴婀綛orland鐨勬葷粡鐞嗘柟鍏堢敓涔熸壘鎴戝幓璇㈤棶鏈夊叧Optima++鐨勪簨鎯咃紝鎴戝憡璇変粬Optima++鏄ソ涓滆タ錛屼絾鏄腑鏂囨湁闂銆傚鏋滀腑鏂囬棶棰樿兘澶熻В鍐籌紝閭d箞灝嗗Borland鍜孧icrosoft鐨勪駭鍝佹湁寰堝ぇ鐨勫獎鍝嶏紝褰撴椂鎴戣繕涓嶇煡閬揃orland鐢變簬Optima++鐨勫獎鍝嶏紝宸茬粡寮濮嬪噯澶囧紑鍙慍++ Builder銆?

       鍦?996騫村簳宸﹀彸鍚э紝Optima++ 1.5緇堜簬榪涘叆Beta鐨勯樁孌點備絾鏄湪鎴戞嬁鍒癇eta鐗堟椂闈炲父澶辨湜錛屽洜涓轟腑鏂囩殑闂浠嶇劧娌℃湁瑙e喅銆傚悗鏉ュ彴婀維ybase鍙堟壘鎴戝幓錛岃繖嬈″拰鎴戣闈㈢殑鏄彴婀維ybase鎬葷粡鐞嗛儹淇婄敺鍏堢敓錛屼互鍙奡ybase鐨勬柊鍔犲潯鎶鏈昏錛屼笉榪囨垜蹇樿榪欎綅鍏堢敓鐨勫悕瀛椾簡銆傝浜嗛潰涔嬪悗錛屾垜绔嬪埢鎶奜ptima++ 1.5涓枃鐨勯棶棰樹互鍙婅澶氱殑鑷櫕鍛婅瘔浠栦滑錛屽笇鏈涗粬浠兘澶熻В鍐籌紝濡傛Optima++ 1.5鎵嶈兘澶熷湪涓枃甯傚満鎴愬姛銆傚彲鏄嚭涔庢垜鎰忔枡涔嬪鐨勬槸錛屼粬浠技涔庡茍涓嶇潃鎬ヨ繖浜涢棶棰橈紝鍙嶈岃闂垜鏄惁鏈夋剰鎰夸負Sybase宸ヤ綔錛屽仛PowerBuilder鐨勪駭鍝佺粡鐞嗐?

       涔熻鏄洜涓烘垜涓篋elphi鍐欎簡澶鐨勪笢瑗匡紝璁㏄owerBuilder鍦ㄥ彴婀懼彈浜嗗緢澶х殑褰卞搷錛屽洜姝や粬浠笇鏈涙垜鍒癝ybase宸ヤ綔錛屼互鎵撳嚮Delphi騫朵笖Promote PowerBuilder銆傚綋鏃朵粬浠彁鍑虹殑寰呴亣鏉′歡瀹炲湪鏄潪甯搞侀潪甯哥殑璇變漢錛屾瘮鎴戝綋鏃剁殑钖按楂樺嚭涓鍊嶅乏鍙籌紙鎴戝綋鏃跺湪璧勭瓥浼氬伐浣滐級銆備笉榪囩敱浜庢垜瀵筆owerBuilder瀹炲湪娌℃湁浠涔堝叴瓚o紝鍥犳鎴戝憡璇変粬浠紝濡傛灉鏄仛Optima++鐨勪駭鍝佺粡鐞嗭紝閭d箞鎴戝皢浼氳冭檻騫朵笖鎺ュ彈銆?

       娌℃湁鎯沖埌錛孲ybase鐨勬柊鍔犲潯鎶鏈昏鍛婅瘔鎴慜ptima++鍦?.5鎺ㄥ嚭涔嬪悗灝卞彲鑳戒細鍋滄錛屽洜涓篠ybase瑕佹妸璧勬簮縐誨幓涓哄綋鏃舵剤鏉ユ剤綰㈢殑Java鐮斿彂涓涓柊鐨凧ava RAD寮鍙戝伐鍏鳳紝閭e氨鏄悗鏉ョ殑PowerJ銆備簬鏄粬璇㈤棶鎴戝鏋滀笉鎰挎剰鍋歅owerBuilder鐨勪駭鍝佺粡鐞嗭紝閭d箞鏄笉鏄効鎰忓仛PowerJ鐨勪駭鍝佺粡鐞嗭紵鐢變簬褰撴椂鎴戝凡緇忕煡閬揃orland寮濮嬩簡Open JBuilder鐨勭爺鍙戯紝鑰屾垜瀵筄pen JBuilder鐨勫叴瓚h繙澶т簬PowerJ錛屽洜姝ゆ病鏈夌瓟搴擲ybase銆傛灉鐒訛紝鍦∣ptima++ 1.5鎺ㄥ嚭涔嬪悗錛屼笉浣嗕腑鏂囩殑闂娌℃湁瑙e喅錛孲ybase涔嬪悗涔熸病鏈夌戶緇Optima++鐮斿彂涓嬪幓銆?

       Optima++涓涓姝ゆ湁娼滃姏鐨勪駭鍝佸氨榪欐牱娑堝け浜嗭紝鐪熸槸浠や漢閬楁喚銆侽ptima++搴旇鏈夊緢濂界殑鏈轟細鍙互鎴愬姛銆傛垜鐩鎬俊錛屽鏋滃綋鏃禨ybase鐭ラ亾C++ Builder鍚庢潵鐨勬垚鏋滐紝鍙兘灝變笉浼氭斁寮僌ptima++浜嗭紝鑰孋/C++鐨凴AD宸ュ叿涓鐩磋鍒板悗鏉ョ殑C++ Builder鏉ュ畬鎴愯繖涓ⅵ銆?

       鑷蟲錛屽拰Visual C/C++绔炰簤鐨勫彧鏈塀orland鐨勭紪璇戝櫒浜嗭紝鐒惰岃櫧鐒跺悗鏉orland緇х畫鎺ㄥ嚭浜咮orland C/C++ 5.0錛屼絾鏄搧璐ㄤ粛鐒朵笉澶熷ソ錛屽競鍦哄弽搴斾篃涓嶄匠銆傚悗鏉ョ粓浜庡湪Borland C/C++ 5.02涔嬪悗瀹e竷鍋滄姝ゆ潯浜у搧綰跨殑寮鍙戯紝Borland C/C++鐨勫厜鑽e巻鍙蹭篃灝變粠姝ゆ墦浣忥紝鐪熸槸浠や漢涓嶈儨鎰熷徆錛岃孷isual C/C++浠庢鍦–/C++寮鍙戝伐鍏峰競鍦轟腑鍐嶄篃娌℃湁瀵規墜銆備笉榪囨病鏈夌珵浜夌殑甯傚満鐨勭‘浼氳浜烘澗鎳堬紝鍚庢潵鐨刅isual C/C++榪涙鐨勫箙搴︽剤鏉ユ剤灝忥紝MFC涔熸暟騫存病鏈変粈涔堝ぇ榪涙錛屼笉鍍忓綋鏃跺拰Borland C/C++绔炰簤鏃舵瘡涓涓増鏈兘鏈夊ぇ騫呯殑鏀瑰杽銆傜湅鏉ュ鍗犵殑甯傚満鐨勭‘鏄笉濂界殑錛岃繖涔熻浜哄洖鎯寵搗Visual C/C++銆丅orland C/C++銆丼ymantec C/C++銆乄atcom C/C++鍥涢泟閫愰箍鐨勮緣鐓屾椂浠d簡銆?

涓夈佸紑婧愭疆嫻?

       Watcom C/C++浜х敓鐩爣紼嬪簭鐨勮川閲忚繕鏄潪甯歌浜洪毦蹇樼殑錛岃繖涔熸槸涓嶅皯紼嬪簭鍛橈紙灝ゅ叾鏄父鎴忕▼搴忓憳錛夐潚鐫愪簬榪欎釜緙栬瘧鍣ㄧ殑鍘熷洜錛岃繖涔熶績鎴愪簡OpenWatcom C/C++鐨勮癁鐢燂紝鍏嶈垂銆佸紑婧愶紝涔熷笇鏈涘緢澶氱殑浜轟嬌鐢紝鏈鏂扮増鏀寔C/C++/Fortran鐨勭紪璇戙?br>


騫藉菇 2008-07-26 11:52 鍙戣〃璇勮
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濡備綍璁$畻婊戝潡闀垮害http://m.shnenglu.com/justin-shi/archive/2008/07/13/56050.html騫藉菇騫藉菇Sun, 13 Jul 2008 14:23:00 GMThttp://m.shnenglu.com/justin-shi/archive/2008/07/13/56050.htmlhttp://m.shnenglu.com/justin-shi/comments/56050.htmlhttp://m.shnenglu.com/justin-shi/archive/2008/07/13/56050.html#Feedback0http://m.shnenglu.com/justin-shi/comments/commentRss/56050.htmlhttp://m.shnenglu.com/justin-shi/services/trackbacks/56050.html

騫藉菇 2008-07-13 22:23 鍙戣〃璇勮
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甯哥敤鐨勫伐鍏峰嚱鏁?/title><link>http://m.shnenglu.com/justin-shi/archive/2008/06/23/54325.html</link><dc:creator>騫藉菇</dc:creator><author>騫藉菇</author><pubDate>Sun, 22 Jun 2008 19:59:00 GMT</pubDate><guid>http://m.shnenglu.com/justin-shi/archive/2008/06/23/54325.html</guid><wfw:comment>http://m.shnenglu.com/justin-shi/comments/54325.html</wfw:comment><comments>http://m.shnenglu.com/justin-shi/archive/2008/06/23/54325.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/justin-shi/comments/commentRss/54325.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/justin-shi/services/trackbacks/54325.html</trackback:ping><description><![CDATA[<div id="hvzpftn" class=cnt id=blog_text> <p>1銆灝咰string杞垚TCHAR*</p> <p>StrToTchar(CString temString,TCHAR * pTchar)<br>{<br>int tmpLength=0 ;<br>tmpLength = temString.GetLength();<br>TCHAR * ptemTchar = temString.GetBuffer(tmpLength);<br>wcscpy( pTchar,ptemTchar);<br>}</p> <p>錛掋鑾峰彇緋葷粺鏃墮棿</p> <p>CString GetSysTime()<br>{//寰楀埌緋葷粺鏃墮棿<br>CString strTime;<br>SYSTEMTIME st;<br>::GetLocalTime(&st);<br>TCHAR datetime[20];<br>TCHAR times[20];<br>GetDateFormat(LOCALE_USER_DEFAULT,NULL,&st,_T("yyyy-MM-dd"),datetime,20);<br>GetTimeFormat(LOCALE_USER_DEFAULT,NULL,&st,_T("HH:mm:ss"),times,20);<br>strTime = (CString)datetime + _T(" ")+(CString)times;<br>return strTime;<br>}</p> <p> </p> <p>CTime t = CTime::GetCurrentTime();<br>SelfInfo[8] = IntToStr(t.GetYear());<br>SelfInfo[9] = IntToStr(t.GetMonth());<br>SelfInfo[10] = IntToStr(t.GetDay());</p> <p> </p> <p>錛撱鍐欐棩蹇?/p> <p><br>void Writelog(char *str)<br>{<br>FILE *fp;<br>fp = fopen("\\Storage\\LogFile.txt","w+");<br>if(!fp)<br>{<br>   return;<br>}<br>fprintf(fp,"%s\n",str);<br>fclose(fp);<br>return;<br>}<br><br><br></p> </div> <img src ="http://m.shnenglu.com/justin-shi/aggbug/54325.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/justin-shi/" target="_blank">騫藉菇</a> 2008-06-23 03:59 <a href="http://m.shnenglu.com/justin-shi/archive/2008/06/23/54325.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>銆愯漿銆慍++ int錛宑har錛宻tring錛孋String綾誨瀷杞崲錛堟暣鐞嗘葷粨錛?/title><link>http://m.shnenglu.com/justin-shi/archive/2008/06/14/53195.html</link><dc:creator>騫藉菇</dc:creator><author>騫藉菇</author><pubDate>Fri, 13 Jun 2008 21:11:00 GMT</pubDate><guid>http://m.shnenglu.com/justin-shi/archive/2008/06/14/53195.html</guid><wfw:comment>http://m.shnenglu.com/justin-shi/comments/53195.html</wfw:comment><comments>http://m.shnenglu.com/justin-shi/archive/2008/06/14/53195.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/justin-shi/comments/commentRss/53195.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/justin-shi/services/trackbacks/53195.html</trackback:ping><description><![CDATA[<div> <p>#include <string> <wbr></wbr>//浣跨敤C++鏍囧噯搴撶殑string綾繪椂</p> <p>using namespace std; <wbr></wbr>//鍚屼笂</p> <p>#include <sstream> <wbr></wbr><wbr></wbr></p> <p>#include <iostream></p> <p>#include <stdlib.h> <wbr></wbr><wbr></wbr><wbr></wbr>//瑕佸皢string綾誨拰int綾誨瀷鐩存帴杞崲鏈濂芥湁榪欎簺鍖呭惈錛?/p> <p><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr>//鍥犱負鑷繁鍐欎竴涓漿鎹㈠嚱鏁版瘮杈冩柟渚匡紝鍑芥暟瀹氫箟鍙傝冨涓?/p> <p>string getstring ( const int n )</p> <p>{</p> <p><wbr></wbr><wbr></wbr><wbr></wbr><font face=瀹嬩綋>std::stringstream newstr;<br><wbr></wbr><wbr></wbr><wbr></wbr>newstr<<n;<br><wbr></wbr><wbr></wbr><wbr></wbr>return newstr.str();</font></p> <p>}</p> <p><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr><wbr></wbr></p> <p>string 杞?CString<br>CString.format(”%s”, string.c_str());</p> <p>char 杞?CString<br>CString.format(”%s”, char*);</p> <p>char 杞?string<br>string s(char *);</p> <p>string 杞?char *<br>char *p = string.c_str();</p> <p>CString 杞?string<br>string s(CString.GetBuffer());</p> <p>1錛宻tring -> CString<br>CString.format(”%s”, string.c_str());<br>鐢╟_str()紜疄姣攄ata()瑕佸ソ.<br>2錛宑har -> string<br>string s(char *);<br>鍙兘鍒濆鍖栵紝鍦ㄤ笉鏄垵濮嬪寲鐨勫湴鏂規渶濂借繕鏄敤assign().<br>3,CString -> string<br>string s(CString.GetBuffer());<br>GetBuffer()鍚庝竴瀹氳ReleaseBuffer(),鍚﹀垯灝辨病鏈夐噴鏀劇紦鍐插尯鎵鍗犵殑絀洪棿.</p> <p>銆奀++鏍囧噯鍑芥暟搴撱嬩腑璇寸殑<br>鏈変笁涓嚱鏁板彲浠ュ皢瀛楃涓茬殑鍐呭杞崲涓哄瓧絎︽暟緇勫拰C鈥攕tring<br>1.data(),榪斿洖娌℃湁”\0“鐨勫瓧絎︿覆鏁扮粍<br>2,c_str()錛岃繑鍥炴湁”\0“鐨勫瓧絎︿覆鏁扮粍<br>3錛宑opy()</p> <p>鈥斺斺斺斺斺斺斺斺斺斺斺斺斺斺斺斺斺斺斺斺?/p> <p>CString涓巌nt銆乧har*銆乧har[100]涔嬮棿鐨勮漿鎹? -</p> <p>CString涓巌nt銆乧har*銆乧har[100]涔嬮棿鐨勮漿鎹? -</p> <p>CString浜掕漿int</p> <p>灝嗗瓧絎﹁漿鎹負鏁存暟錛屽彲浠ヤ嬌鐢╝toi銆乢atoi64鎴朼tol銆?br>鑰屽皢鏁板瓧杞崲涓篊String鍙橀噺錛屽彲浠ヤ嬌鐢–String鐨凢ormat鍑芥暟銆傚<br>CString s;<br>int i = 64;<br>s.Format(”%d”, i)<br>Format鍑芥暟鐨勫姛鑳藉緢寮猴紝鍊煎緱浣犵爺絀朵竴涓嬨?/p> <p>void CStrDlg::OnButton1()<br>{<br>// TODO: Add your control notification handler code here<br>CString<br>ss=”1212.12″;<br>int temp=atoi(ss);<br>CString aa;<br>aa.Format(”%d”,temp);<br>AfxMessageBox(”var is ” + aa);<br>}</p> <p>sart.Format(”%s”,buf);</p> <p>CString浜掕漿char*</p> <p>///char * TO cstring<br>CString strtest;<br>char * charpoint;<br>charpoint=”give string a value”;<br>strtest=charpoint;</p> <p>///cstring TO char *<br>charpoint=strtest.GetBuffer(strtest.GetLength());</p> <p>鏍囧噯C閲屾病鏈塻tring,char *==char []==string</p> <p>鍙互鐢–String.Format(”%s”,char *)榪欎釜鏂規硶鏉ュ皢char *杞垚CString銆傝鎶奀String杞垚char *錛岀敤鎿嶄綔絎︼紙LPCSTR錛塁String灝卞彲浠ヤ簡銆?/p> <p>CString杞崲 char[100]</p> <p>char a[100];<br>CString str(”aaaaaa”);<br>strncpy(a,(LPCTSTR)str,sizeof(a));</p> </div> <br> <img src ="http://m.shnenglu.com/justin-shi/aggbug/53195.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/justin-shi/" target="_blank">騫藉菇</a> 2008-06-14 05:11 <a href="http://m.shnenglu.com/justin-shi/archive/2008/06/14/53195.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>杞歡宸ョ▼甯堢瑪璇曢錛圕/C++錛?/title><link>http://m.shnenglu.com/justin-shi/archive/2008/06/11/52825.html</link><dc:creator>騫藉菇</dc:creator><author>騫藉菇</author><pubDate>Tue, 10 Jun 2008 18:46:00 GMT</pubDate><guid>http://m.shnenglu.com/justin-shi/archive/2008/06/11/52825.html</guid><wfw:comment>http://m.shnenglu.com/justin-shi/comments/52825.html</wfw:comment><comments>http://m.shnenglu.com/justin-shi/archive/2008/06/11/52825.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/justin-shi/comments/commentRss/52825.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/justin-shi/services/trackbacks/52825.html</trackback:ping><description><![CDATA[<p> </p> <strong>棰勫鐞嗗櫒錛圥reprocessor錛?br></strong>1. 鐢ㄩ澶勭悊鎸囦護#define 澹版槑涓涓父鏁幫紝鐢ㄤ互琛ㄦ槑1騫翠腑鏈夊灝戠錛堝拷鐣ラ棸騫撮棶棰橈級<br><br>#define SECONDS_PER_YEAR (60 * 60 * 24 * 365)UL <br>鎴戝湪榪欐兂鐪嬪埌鍑犱歡浜嬫儏錛?<br>1). #define 璇硶鐨勫熀鏈煡璇嗭紙渚嬪錛氫笉鑳戒互鍒嗗彿緇撴潫錛屾嫭鍙風殑浣跨敤錛岀瓑絳夛級 <br>2). 鎳傚緱棰勫鐞嗗櫒灝嗕負浣犺綆楀父鏁拌〃杈懼紡鐨勫鹼紝鍥犳錛岀洿鎺ュ啓鍑轟綘鏄浣曡綆椾竴騫翠腑鏈夊灝戠鑰屼笉鏄綆楀嚭瀹為檯鐨勫鹼紝鏄洿娓呮櫚鑰屾病鏈変唬浠風殑銆?<br>3). 鎰忚瘑鍒拌繖涓〃杈懼紡灝嗕嬌涓涓?6浣嶆満鐨勬暣鍨嬫暟婧㈠嚭-鍥犳瑕佺敤鍒伴暱鏁村瀷絎﹀彿L,鍛婅瘔緙栬瘧鍣ㄨ繖涓父鏁版槸鐨勯暱鏁村瀷鏁般?<br>4). 濡傛灉浣犲湪浣犵殑琛ㄨ揪寮忎腑鐢ㄥ埌UL錛堣〃紺烘棤絎﹀彿闀挎暣鍨嬶級錛岄偅涔堜綘鏈変簡涓涓ソ鐨勮搗鐐廣傝浣忥紝絎竴鍗拌薄寰堥噸瑕併?br><br><br>2. 鍐欎竴涓?#8220;鏍囧噯”瀹廙IN錛岃繖涓畯杈撳叆涓や釜鍙傛暟騫惰繑鍥炶緝灝忕殑涓涓?br><br><br>#define MIN(A,B) ((A) <= (B) (A) : (B)) <br>榪欎釜嫻嬭瘯鏄負涓嬮潰鐨勭洰鐨勮岃鐨勶細 <br>1). 鏍囪瘑#define鍦ㄥ畯涓簲鐢ㄧ殑鍩烘湰鐭ヨ瘑銆傝繖鏄緢閲嶈鐨勶紝鍥犱負鐩村埌宓屽叆(inline)鎿嶄綔絎﹀彉涓烘爣鍑咰鐨勪竴閮ㄥ垎錛屽畯鏄柟渚夸駭鐢熷祵鍏ヤ唬鐮佺殑鍞竴鏂規硶錛屽浜庡祵鍏ュ紡緋葷粺鏉ヨ錛屼負浜嗚兘杈懼埌瑕佹眰鐨勬ц兘錛屽祵鍏ヤ唬鐮佺粡甯告槸蹇呴』鐨勬柟娉曘?<br>2). 涓夐噸鏉′歡鎿嶄綔絎︾殑鐭ヨ瘑銆傝繖涓搷浣滅瀛樺湪C璇█涓殑鍘熷洜鏄畠浣垮緱緙栬瘧鍣ㄨ兘浜х敓姣攊f-then-else鏇翠紭鍖栫殑浠g爜錛屼簡瑙h繖涓敤娉曟槸寰堥噸瑕佺殑銆?<br>3). 鎳傚緱鍦ㄥ畯涓皬蹇冨湴鎶婂弬鏁扮敤鎷彿鎷搗鏉?<br>4). 鎴戜篃鐢ㄨ繖涓棶棰樺紑濮嬭璁哄畯鐨勫壇浣滅敤錛屼緥濡傦細褰撲綘鍐欎笅闈㈢殑浠g爜鏃朵細鍙戠敓浠涔堜簨錛?<br>least = MIN(*p++, b);<br><br><br>3. 棰勫鐞嗗櫒鏍囪瘑#error鐨勭洰鐨勬槸浠涔堬紵<br><br>濡傛灉浣犱笉鐭ラ亾絳旀錛岃鐪嬪弬鑰冩枃鐚?銆傝繖闂瀵瑰尯鍒嗕竴涓甯哥殑浼欒鍜屼竴涓功鍛嗗瓙鏄緢鏈夌敤鐨勩傚彧鏈変功鍛嗗瓙鎵嶄細璇籆璇█璇炬湰鐨勯檮褰曞幓鎵懼嚭璞¤繖縐?<br>闂鐨勭瓟妗堛傚綋鐒跺鏋滀綘涓嶆槸鍦ㄦ壘涓涓功鍛嗗瓙錛岄偅涔堝簲璇曡呮渶濂藉笇鏈涜嚜宸變笉瑕佺煡閬撶瓟妗堛?br><br><br><strong>姝誨驚鐜紙Infinite loops錛?/strong><br><br><br>4. 宓屽叆寮忕郴緇熶腑緇忓父瑕佺敤鍒版棤闄愬驚鐜紝浣犳庝箞鏍風敤C緙栧啓姝誨驚鐜憿錛?br><br>榪欎釜闂鐢ㄥ嚑涓В鍐蟲柟妗堛傛垜棣栭夌殑鏂規鏄細 <br>while(1) { } <br>涓浜涚▼搴忓憳鏇村枩嬈㈠涓嬫柟妗堬細 <br>for(;;) { } <br>榪欎釜瀹炵幇鏂瑰紡璁╂垜涓洪毦錛屽洜涓鴻繖涓娉曟病鏈夌‘鍒囪〃杈懼埌搴曟庝箞鍥炰簨銆傚鏋滀竴涓簲璇曡呯粰鍑鴻繖涓綔涓烘柟妗堬紝鎴戝皢鐢ㄨ繖涓綔涓轟竴涓満浼氬幓鎺㈢┒浠栦滑榪欐牱鍋氱殑 <br>鍩烘湰鍘熺悊銆傚鏋滀粬浠殑鍩烘湰絳旀鏄細“鎴戣鏁欑潃榪欐牱鍋氾紝浣嗕粠娌℃湁鎯沖埌榪囦負浠涔堛?#8221;榪欎細緇欐垜鐣欎笅涓涓潖鍗拌薄銆?<br>絎笁涓柟妗堟槸鐢?goto <br>Loop: <br>... <br>goto Loop; <br>搴旇瘯鑰呭緇欏嚭涓婇潰鐨勬柟妗堬紝榪欒鏄庢垨鑰呬粬鏄竴涓眹緙栬璦紼嬪簭鍛橈紙榪欎篃璁告槸濂戒簨錛夋垨鑰呬粬鏄竴涓兂榪涘叆鏂伴鍩熺殑BASIC/FORTRAN紼嬪簭鍛樸?br><br><strong>鏁版嵁澹版槑錛圖ata declarations錛?/strong> <br><br>5. 鐢ㄥ彉閲廰緇欏嚭涓嬮潰鐨勫畾涔?br>a) 涓涓暣鍨嬫暟錛圓n integer錛?<br>b) 涓涓寚鍚戞暣鍨嬫暟鐨勬寚閽堬紙A pointer to an integer錛?<br>c) 涓涓寚鍚戞寚閽堢殑鐨勬寚閽堬紝瀹冩寚鍚戠殑鎸囬拡鏄寚鍚戜竴涓暣鍨嬫暟錛圓 pointer to a pointer to an integer錛?<br>d) 涓涓湁10涓暣鍨嬫暟鐨勬暟緇勶紙An array of 10 integers錛?<br>e) 涓涓湁10涓寚閽堢殑鏁扮粍錛岃鎸囬拡鏄寚鍚戜竴涓暣鍨嬫暟鐨勶紙An array of 10 pointers to integers錛?<br>f) 涓涓寚鍚戞湁10涓暣鍨嬫暟鏁扮粍鐨勬寚閽堬紙A pointer to an array of 10 integers錛?<br>g) 涓涓寚鍚戝嚱鏁扮殑鎸囬拡錛岃鍑芥暟鏈変竴涓暣鍨嬪弬鏁板茍榪斿洖涓涓暣鍨嬫暟錛圓 pointer to a function that takes an integer as an argument and returns an integer錛?<br>h) 涓涓湁10涓寚閽堢殑鏁扮粍錛岃鎸囬拡鎸囧悜涓涓嚱鏁幫紝璇ュ嚱鏁版湁涓涓暣鍨嬪弬鏁板茍榪斿洖涓涓暣鍨嬫暟錛?An array of ten pointers to functions that take an integer argument and return an integer 錛?br><br>絳旀鏄細 <br>a) int a; // An integer <br>b) int *a; // A pointer to an integer <br>c) int **a; // A pointer to a pointer to an integer <br>d) int a[10]; // An array of 10 integers <br>e) int *a[10]; // An array of 10 pointers to integers <br>f) int (*a)[10]; // A pointer to an array of 10 integers <br>g) int (*a)(int); // A pointer to a function a that takes an integer argument and returns an integer <br>h) int (*a[10])(int); // An array of 10 pointers to functions that take an integer argument and return an integer <br><br><br>浜轟滑緇忓父澹扮О榪欓噷鏈夊嚑涓棶棰樻槸閭g瑕佺炕涓涓嬩功鎵嶈兘鍥炵瓟鐨勯棶棰橈紝鎴戝悓鎰忚繖縐嶈娉曘傚綋鎴戝啓榪欑瘒鏂囩珷鏃訛紝涓轟簡紜畾璇硶鐨勬紜э紝鎴戠殑紜煡浜嗕竴涓嬩功銆?<br>浣嗘槸褰撴垜琚潰璇曠殑鏃跺欙紝鎴戞湡鏈涜闂埌榪欎釜闂錛堟垨鑰呯浉榪戠殑闂錛夈傚洜涓哄湪琚潰璇曠殑榪欐鏃墮棿閲岋紝鎴戠‘瀹氭垜鐭ラ亾榪欎釜闂鐨勭瓟妗堛傚簲璇曡呭鏋滀笉鐭ラ亾 <br>鎵鏈夌殑絳旀錛堟垨鑷沖皯澶ч儴鍒嗙瓟妗堬級錛岄偅涔堜篃灝辨病鏈変負榪欐闈㈣瘯鍋氬噯澶囷紝濡傛灉璇ラ潰璇曡呮病鏈変負榪欐闈㈣瘯鍋氬噯澶囷紝閭d箞浠栧張鑳戒負浠涔堝嚭鍑嗗鍛紵<br><br><br><strong>Static</strong><br><br>6. 鍏抽敭瀛梥tatic鐨勪綔鐢ㄦ槸浠涔堬紵<br><br>榪欎釜綆鍗曠殑闂寰堝皯鏈変漢鑳藉洖絳斿畬鍏ㄣ傚湪C璇█涓紝鍏抽敭瀛梥tatic鏈変笁涓槑鏄劇殑浣滅敤錛?<br>1). 鍦ㄥ嚱鏁頒綋錛屼竴涓澹版槑涓洪潤鎬佺殑鍙橀噺鍦ㄨ繖涓鍑芥暟琚皟鐢ㄨ繃紼嬩腑緇存寔鍏跺間笉鍙樸?<br>2). 鍦ㄦā鍧楀唴錛堜絾鍦ㄥ嚱鏁頒綋澶栵級錛屼竴涓澹版槑涓洪潤鎬佺殑鍙橀噺鍙互琚ā鍧楀唴鎵鐢ㄥ嚱鏁拌闂紝浣嗕笉鑳借妯″潡澶栧叾瀹冨嚱鏁拌闂傚畠鏄竴涓湰鍦扮殑鍏ㄥ眬鍙橀噺銆?<br>3). 鍦ㄦā鍧楀唴錛屼竴涓澹版槑涓洪潤鎬佺殑鍑芥暟鍙彲琚繖涓妯″潡鍐呯殑鍏跺畠鍑芥暟璋冪敤銆傞偅灝辨槸錛岃繖涓嚱鏁拌闄愬埗鍦ㄥ0鏄庡畠鐨勬ā鍧楃殑鏈湴鑼冨洿鍐呬嬌鐢ㄣ?<br>澶у鏁板簲璇曡呰兘姝g‘鍥炵瓟絎竴閮ㄥ垎錛屼竴閮ㄥ垎鑳芥紜洖絳旂浜岄儴鍒嗭紝鍚屾槸寰堝皯鐨勪漢鑳芥噦寰楃涓夐儴鍒嗐傝繖鏄竴涓簲璇曡呯殑涓ラ噸鐨勭己鐐癸紝鍥犱負浠栨樉鐒朵笉鎳傚緱鏈湴鍖栨暟鎹拰浠g爜鑼冨洿鐨勫ソ澶勫拰閲嶈鎬с?br><br><br><strong>Const </strong><br><br>7錛庡叧閿瓧const鏄粈涔堝惈鎰忥紵<br>鎴戝彧瑕佷竴鍚埌琚潰璇曡呰錛?#8220;const鎰忓懗鐫甯告暟”錛屾垜灝辯煡閬撴垜姝e湪鍜屼竴涓笟浣欒呮墦浜ら亾銆傚幓騫碊an Saks宸茬粡鍦ㄤ粬鐨勬枃绔犻噷瀹屽叏姒傛嫭浜哻onst鐨勬墍鏈夌敤娉曪紝鍥犳ESP(璇戣咃細Embedded Systems Programming)鐨勬瘡涓浣嶈鑰呭簲璇ラ潪甯哥啛鎮塩onst鑳藉仛浠涔堝拰涓嶈兘鍋氫粈涔?濡傛灉浣犱粠娌℃湁璇誨埌閭g瘒鏂囩珷錛屽彧瑕佽兘璇村嚭const鎰忓懗鐫“鍙”灝卞彲浠ヤ簡銆傚敖綆¤繖涓瓟妗堜笉鏄畬鍏ㄧ殑絳旀錛屼絾鎴戞帴鍙楀畠浣滀負涓涓紜殑絳旀銆傦紙濡傛灉浣犳兂鐭ラ亾鏇磋緇嗙殑絳旀錛屼粩緇嗚涓涓婼aks鐨勬枃绔犲惂銆傦級濡傛灉搴旇瘯鑰呰兘姝g‘鍥炵瓟榪欎釜闂錛屾垜灝嗛棶浠栦竴涓檮鍔犵殑闂錛氫笅闈㈢殑澹版槑閮芥槸浠涔堟剰鎬濓紵<br><br>const int a; <br>int const a; <br>const int *a; <br>int * const a; <br>int const * a const;<br><br>鍓嶄袱涓殑浣滅敤鏄竴鏍鳳紝a鏄竴涓父鏁村瀷鏁般傜涓変釜鎰忓懗鐫a鏄竴涓寚鍚戝父鏁村瀷鏁扮殑鎸囬拡錛堜篃灝辨槸錛屾暣鍨嬫暟鏄笉鍙慨鏀圭殑錛屼絾鎸囬拡鍙互錛夈傜鍥涗釜鎰忔漚鏄竴涓寚鍚戞暣鍨嬫暟鐨勫父鎸囬拡錛堜篃灝辨槸璇達紝鎸囬拡鎸囧悜鐨勬暣鍨嬫暟鏄彲浠ヤ慨鏀圭殑錛屼絾鎸囬拡鏄笉鍙慨鏀圭殑錛夈傛渶鍚庝竴涓剰鍛崇潃a鏄竴涓寚鍚戝父鏁村瀷鏁扮殑甯告寚閽堬紙涔熷氨鏄錛屾寚閽堟寚鍚戠殑鏁村瀷鏁版槸涓嶅彲淇敼鐨勶紝鍚屾椂鎸囬拡涔熸槸涓嶅彲淇敼鐨勶級銆傚鏋滃簲璇曡呰兘姝g‘鍥炵瓟榪欎簺闂錛岄偅涔堜粬灝辯粰鎴戠暀涓嬩簡涓涓ソ鍗拌薄銆傞『甯︽彁涓鍙ワ紝涔熻浣犲彲鑳戒細闂紝鍗充嬌涓嶇敤鍏抽敭瀛梒onst錛屼篃榪樻槸鑳藉緢瀹規槗鍐欏嚭鍔熻兘姝g‘鐨勭▼搴忥紝閭d箞鎴戜負浠涔堣繕瑕佸姝ょ湅閲嶅叧閿瓧const鍛紵鎴戜篃濡備笅鐨勫嚑涓嬬悊鐢憋細 <br>1). 鍏抽敭瀛梒onst鐨勪綔鐢ㄦ槸涓虹粰璇諱綘浠g爜鐨勪漢浼犺揪闈炲父鏈夌敤鐨勪俊鎭紝瀹為檯涓婏紝澹版槑涓涓弬鏁頒負甯擱噺鏄負浜嗗憡璇変簡鐢ㄦ埛榪欎釜鍙傛暟鐨勫簲鐢ㄧ洰鐨勩傚鏋滀綘鏇捐姳寰堝鏃墮棿娓呯悊鍏跺畠浜虹暀涓嬬殑鍨冨溇錛屼綘灝變細寰堝揩瀛︿細鎰熻阿榪欑偣澶氫綑鐨勪俊鎭傦紙褰撶劧錛屾噦寰楃敤const鐨勭▼搴忓憳寰堝皯浼氱暀涓嬬殑鍨冨溇璁╁埆浜烘潵娓呯悊鐨勩傦級 <br>2). 閫氳繃緇欎紭鍖栧櫒涓浜涢檮鍔犵殑淇℃伅錛屼嬌鐢ㄥ叧閿瓧const涔熻鑳戒駭鐢熸洿绱у噾鐨勪唬鐮併?<br>3). 鍚堢悊鍦頒嬌鐢ㄥ叧閿瓧const鍙互浣跨紪璇戝櫒寰堣嚜鐒跺湴淇濇姢閭d簺涓嶅笇鏈涜鏀瑰彉鐨勫弬鏁幫紝闃叉鍏惰鏃犳剰鐨勪唬鐮佷慨鏀廣傜畝鑰岃█涔嬶紝榪欐牱鍙互鍑忓皯bug鐨勫嚭鐜般?br><br><strong>Volatile </strong><br><br>8. 鍏抽敭瀛梫olatile鏈変粈涔堝惈鎰?騫剁粰鍑轟笁涓笉鍚岀殑渚嬪瓙銆?br><br>涓涓畾涔変負volatile鐨勫彉閲忔槸璇磋繖鍙橀噺鍙兘浼氳鎰忔兂涓嶅埌鍦版敼鍙橈紝榪欐牱錛岀紪璇戝櫒灝變笉浼氬幓鍋囪榪欎釜鍙橀噺鐨勫間簡銆傜簿紜湴璇村氨鏄紝浼樺寲鍣ㄥ湪鐢ㄥ埌榪欎釜鍙橀噺鏃跺繀欏繪瘡嬈¢兘灝忓績鍦伴噸鏂拌鍙栬繖涓彉閲忕殑鍊鹼紝鑰屼笉鏄嬌鐢ㄤ繚瀛樺湪瀵勫瓨鍣ㄩ噷鐨勫浠姐備笅闈㈡槸volatile鍙橀噺鐨勫嚑涓緥瀛愶細 <br>1). 騫惰璁懼鐨勭‖浠跺瘎瀛樺櫒錛堝錛氱姸鎬佸瘎瀛樺櫒錛?<br>2). 涓涓腑鏂湇鍔″瓙紼嬪簭涓細璁塊棶鍒扮殑闈炶嚜鍔ㄥ彉閲?Non-automatic variables) <br>3). 澶氱嚎紼嬪簲鐢ㄤ腑琚嚑涓換鍔″叡浜殑鍙橀噺 <br>鍥炵瓟涓嶅嚭榪欎釜闂鐨勪漢鏄笉浼氳闆囦劍鐨勩傛垜璁や負榪欐槸鍖哄垎C紼嬪簭鍛樺拰宓屽叆寮忕郴緇熺▼搴忓憳鐨勬渶鍩烘湰鐨勯棶棰樸傚祵鍏ュ紡緋葷粺紼嬪簭鍛樼粡甯稿悓紜歡銆佷腑鏂丷TOS絳夌瓑鎵撲氦閬擄紝鎵鐢ㄨ繖浜涢兘瑕佹眰volatile鍙橀噺銆備笉鎳傚緱volatile鍐呭灝嗕細甯︽潵鐏鵑毦銆?<br>鍋囪琚潰璇曡呮紜湴鍥炵瓟浜嗚繖鏄棶棰橈紙鍡紝鎬鐤戣繖鍚︿細鏄繖鏍鳳級錛屾垜灝嗙◢寰繁絀朵竴涓嬶紝鐪嬩竴涓嬭繖瀹朵紮鏄笉鏄洿姝f噦寰梫olatile瀹屽叏鐨勯噸瑕佹с?<br>1). 涓涓弬鏁版棦鍙互鏄痗onst榪樺彲浠ユ槸volatile鍚楋紵瑙i噴涓轟粈涔堛?<br>2). 涓涓寚閽堝彲浠ユ槸volatile 鍚楋紵瑙i噴涓轟粈涔堛?<br>3). 涓嬮潰鐨勫嚱鏁版湁浠涔堥敊璇細 <br>int square(volatile int *ptr) <br>{ <br>return *ptr * *ptr; <br>} <br>涓嬮潰鏄瓟妗堬細 <br>1). 鏄殑銆備竴涓緥瀛愭槸鍙鐨勭姸鎬佸瘎瀛樺櫒銆傚畠鏄痸olatile鍥犱負瀹冨彲鑳借鎰忔兂涓嶅埌鍦版敼鍙樸傚畠鏄痗onst鍥犱負紼嬪簭涓嶅簲璇ヨ瘯鍥懼幓淇敼瀹冦?<br>2). 鏄殑銆傚敖綆¤繖騫朵笉寰堝父瑙併備竴涓緥瀛愭槸褰撲竴涓腑鏈嶅姟瀛愮▼搴忎慨璇ヤ竴涓寚鍚戜竴涓猙uffer鐨勬寚閽堟椂銆?<br>3). 榪欐浠g爜鐨勬湁涓伓浣滃墽銆傝繖孌典唬鐮佺殑鐩殑鏄敤鏉ヨ繑鎸囬拡*ptr鎸囧悜鍊肩殑騫蟲柟錛屼絾鏄紝鐢變簬*ptr鎸囧悜涓涓獀olatile鍨嬪弬鏁幫紝緙栬瘧鍣ㄥ皢浜х敓綾諱技涓嬮潰鐨勪唬鐮侊細 <br>int square(volatile int *ptr) <br>{ <br>int a,b; <br>a = *ptr; <br>b = *ptr; <br>return a * b; <br>} <br>鐢變簬*ptr鐨勫煎彲鑳借鎰忔兂涓嶅埌鍦拌鍙橈紝鍥犳a鍜宐鍙兘鏄笉鍚岀殑銆傜粨鏋滐紝榪欐浠g爜鍙兘榪斾笉鏄綘鎵鏈熸湜鐨勫鉤鏂瑰鹼紒姝g‘鐨勪唬鐮佸涓嬶細 <br>long square(volatile int *ptr) <br>{ <br>int a; <br>a = *ptr; <br>return a * a; <br>}<br><br><strong>浣嶆搷浣滐紙Bit manipulation錛?/strong><br><br>9. 宓屽叆寮忕郴緇熸繪槸瑕佺敤鎴峰鍙橀噺鎴栧瘎瀛樺櫒榪涜浣嶆搷浣溿傜粰瀹氫竴涓暣鍨嬪彉閲廰錛屽啓涓ゆ浠g爜錛岀涓涓緗產鐨刡it 3錛岀浜屼釜娓呴櫎a 鐨刡it 3銆傚湪浠ヤ笂涓や釜鎿嶄綔涓紝瑕佷繚鎸佸叾瀹冧綅涓嶅彉銆?br><br>瀵硅繖涓棶棰樻湁涓夌鍩烘湰鐨勫弽搴?<br>1). 涓嶇煡閬撳浣曚笅鎵嬨傝琚潰鑰呬粠娌″仛榪囦換浣曞祵鍏ュ紡緋葷粺鐨勫伐浣溿?<br>2). 鐢╞it fields銆侭it fields鏄鎵斿埌C璇█姝昏鐨勪笢瑗匡紝瀹冧繚璇佷綘鐨勪唬鐮佸湪涓嶅悓緙栬瘧鍣ㄤ箣闂存槸涓嶅彲縐繪鐨勶紝鍚屾椂涔熶繚璇佷簡鐨勪綘鐨勪唬鐮佹槸涓嶅彲閲嶇敤鐨勩傛垜鏈榪戜笉騫哥湅鍒癐nfineon涓哄叾杈冨鏉傜殑閫氫俊鑺墖鍐欑殑椹卞姩紼嬪簭錛屽畠鐢ㄥ埌浜哹it fields鍥犳瀹屽叏瀵規垜鏃犵敤錛屽洜涓烘垜鐨勭紪璇戝櫒鐢ㄥ叾瀹冪殑鏂瑰紡鏉ュ疄鐜癰it fields鐨勩備粠閬撳痙璁詫細姘歌繙涓嶈璁╀竴涓潪宓屽叆寮忕殑瀹朵紮綺樺疄闄呯‖浠剁殑杈廣?<br>3). 鐢?#defines 鍜?bit masks 鎿嶄綔銆傝繖鏄竴涓湁鏋侀珮鍙Щ妞嶆х殑鏂規硶錛屾槸搴旇琚敤鍒扮殑鏂規硶銆傛渶浣崇殑瑙e喅鏂規濡備笅錛?<br>#define BIT3 (0x1<<3) <br>static int a; <br>void set_bit3(void) <br>{ <br>a |= BIT3; <br>} <br>void clear_bit3(void) <br>{ <br>a &= ~BIT3; <br>} <br>涓浜涗漢鍠滄涓鴻緗拰娓呴櫎鍊艱屽畾涔変竴涓帺鐮佸悓鏃跺畾涔変竴浜涜鏄庡父鏁幫紝榪欎篃鏄彲浠ユ帴鍙楃殑銆傛垜甯屾湜鐪嬪埌鍑犱釜瑕佺偣錛氳鏄庡父鏁般亅=鍜?amp;=~鎿嶄綔銆?br><br><strong>璁塊棶鍥哄畾鐨勫唴瀛樹綅緗紙Accessing fixed memory locations錛?/strong> <br><br>10. 宓屽叆寮忕郴緇熺粡甯稿叿鏈夎姹傜▼搴忓憳鍘昏闂煇鐗瑰畾鐨勫唴瀛樹綅緗殑鐗圭偣銆傚湪鏌愬伐紼嬩腑錛岃姹傝緗竴緇濆鍦板潃涓?x67a9鐨勬暣鍨嬪彉閲忕殑鍊間負0xaa66銆傜紪璇戝櫒鏄竴涓函綺圭殑ANSI緙栬瘧鍣ㄣ傚啓浠g爜鍘誨畬鎴愯繖涓浠誨姟銆?br><br>榪欎竴闂嫻嬭瘯浣犳槸鍚︾煡閬撲負浜嗚闂竴緇濆鍦板潃鎶婁竴涓暣鍨嬫暟寮哄埗杞崲錛坱ypecast錛変負涓鎸囬拡鏄悎娉曠殑銆傝繖涓闂鐨勫疄鐜版柟寮忛殢鐫涓漢椋庢牸涓嶅悓鑰屼笉鍚屻傚吀鍨嬬殑綾諱技浠g爜濡備笅錛?<br>int *ptr; <br>ptr = (int *)0x67a9; <br>*ptr = 0xaa55;<br><br>涓涓緝鏅︽訂鐨勬柟娉曟槸錛?<br>*(int * const)(0x67a9) = 0xaa55;<br><br>鍗充嬌浣犵殑鍝佸懗鏇存帴榪戠浜岀鏂規錛屼絾鎴戝緩璁綘鍦ㄩ潰璇曟椂浣跨敤絎竴縐嶆柟妗堛?br><br><strong>涓柇錛圛nterrupts錛?</strong><br><br>11. 涓柇鏄祵鍏ュ紡緋葷粺涓噸瑕佺殑緇勬垚閮ㄥ垎錛岃繖瀵艱嚧浜嗗緢澶氱紪璇戝紑鍙戝晢鎻愪緵涓縐嶆墿灞曗旇鏍囧噯C鏀寔涓柇銆傚叿浠h〃浜嬪疄鏄紝浜х敓浜嗕竴涓柊鐨勫叧閿瓧__interrupt銆備笅闈㈢殑浠g爜灝變嬌鐢ㄤ簡__interrupt鍏抽敭瀛楀幓瀹氫箟浜嗕竴涓腑鏂湇鍔″瓙紼嬪簭(ISR)錛岃璇勮涓涓嬭繖孌典唬鐮佺殑銆?br><br>__interrupt double compute_area (double radius) <br>{ <br>     double area = PI * radius * radius; <br>     printf(" Area = %f", area); <br>     return area; <br>}<br><br>榪欎釜鍑芥暟鏈夊お澶氱殑閿欒浜嗭紝浠ヨ嚦璁╀漢涓嶇煡浠庝綍璇磋搗浜嗭細 <br>1). ISR 涓嶈兘榪斿洖涓涓箋傚鏋滀綘涓嶆噦榪欎釜錛岄偅涔堜綘涓嶄細琚泧鐢ㄧ殑銆?<br>2). ISR 涓嶈兘浼犻掑弬鏁般傚鏋滀綘娌℃湁鐪嬪埌榪欎竴鐐癸紝浣犺闆囩敤鐨勬満浼氱瓑鍚岀涓欏廣?<br>3). 鍦ㄨ澶氱殑澶勭悊鍣?緙栬瘧鍣ㄤ腑錛屾誕鐐逛竴鑸兘鏄笉鍙噸鍏ョ殑銆傛湁浜涘鐞嗗櫒/緙栬瘧鍣ㄩ渶瑕佽棰濆鐨勫瘎瀛樺櫒鍏ユ爤錛屾湁浜涘鐞嗗櫒/緙栬瘧鍣ㄥ氨鏄笉鍏佽鍦↖SR涓仛嫻偣榪愮畻銆傛澶栵紝ISR搴旇鏄煭鑰屾湁鏁堢巼鐨勶紝鍦↖SR涓仛嫻偣榪愮畻鏄笉鏄庢櫤鐨勩?<br>4). 涓庣涓夌偣涓鑴夌浉鎵匡紝printf()緇忓父鏈夐噸鍏ュ拰鎬ц兘涓婄殑闂銆傚鏋滀綘涓㈡帀浜嗙涓夊拰絎洓鐐癸紝鎴戜笉浼氬お涓洪毦浣犵殑銆備笉鐢ㄨ錛屽鏋滀綘鑳藉緱鍒板悗涓ょ偣錛岄偅涔堜綘鐨勮闆囩敤鍓嶆櫙瓚婃潵瓚婂厜鏄庝簡銆?br><br><strong>浠g爜渚嬪瓙錛圕ode examples錛?/strong><br><br>12 . 涓嬮潰鐨勪唬鐮佽緭鍑烘槸浠涔堬紝涓轟粈涔堬紵<br><br>void foo(void) <br>{ <br>     unsigned int a = 6; <br>     int b = -20; <br>     (a+b > 6) puts("> 6") : puts("<= 6"); <br>}<br><br>榪欎釜闂嫻嬭瘯浣犳槸鍚︽噦寰桟璇█涓殑鏁存暟鑷姩杞崲鍘熷垯錛屾垜鍙戠幇鏈変簺寮鍙戣呮噦寰楁瀬灝戣繖浜涗笢瑗褲備笉綆″浣曪紝榪欐棤絎﹀彿鏁村瀷闂鐨勭瓟妗堟槸杈撳嚭鏄?#8220;>6”銆傚師鍥犳槸褰撹〃杈懼紡涓瓨鍦ㄦ湁絎﹀彿綾誨瀷鍜屾棤絎﹀彿綾誨瀷鏃舵墍鏈夌殑鎿嶄綔鏁伴兘鑷姩杞崲涓烘棤絎﹀彿綾誨瀷銆?鍥犳-20鍙樻垚浜嗕竴涓潪甯稿ぇ鐨勬鏁存暟錛屾墍浠ヨ琛ㄨ揪寮忚綆楀嚭鐨勭粨鏋滃ぇ浜?銆傝繖涓鐐瑰浜庡簲褰撻綣佺敤鍒版棤絎﹀彿鏁版嵁綾誨瀷鐨勫祵鍏ュ紡緋葷粺鏉ヨ鏄赴甯擱噸瑕佺殑銆傚鏋滀綘絳旈敊浜嗚繖涓棶棰橈紝浣犱篃灝卞埌浜嗗緱涓嶅埌榪欎喚宸ヤ綔鐨勮竟緙樸?br><br>13. 璇勪環涓嬮潰鐨勪唬鐮佺墖鏂細<br><br>unsigned int zero = 0; <br>unsigned int compzero = 0xFFFF; <br>/*1's complement of zero */<br><br>瀵逛簬涓涓猧nt鍨嬩笉鏄?6浣嶇殑澶勭悊鍣ㄤ負璇達紝涓婇潰鐨勪唬鐮佹槸涓嶆紜殑銆傚簲緙栧啓濡備笅錛?br><br>unsigned int compzero = ~0;<br><br>榪欎竴闂鐪熸鑳芥彮闇插嚭搴旇瘯鑰呮槸鍚︽噦寰楀鐞嗗櫒瀛楅暱鐨勯噸瑕佹с傚湪鎴戠殑緇忛獙閲岋紝濂界殑宓屽叆寮忕▼搴忓憳闈炲父鍑嗙‘鍦版槑鐧界‖浠剁殑緇嗚妭鍜屽畠鐨勫眬闄愶紝鐒惰孭C鏈虹▼搴忓線寰鎶婄‖浠朵綔涓轟竴涓棤娉曢伩鍏嶇殑鐑︽伡銆?<br>鍒頒簡榪欎釜闃舵錛屽簲璇曡呮垨鑰呭畬鍏ㄥ瀭澶翠撫姘斾簡鎴栬呬俊蹇冩弧婊″織鍦ㄥ繀寰椼傚鏋滄樉鐒跺簲璇曡呬笉鏄緢濂斤紝閭d箞榪欎釜嫻嬭瘯灝卞湪榪欓噷緇撴潫浜嗐備絾濡傛灉鏄劇劧搴旇瘯鑰呭仛寰椾笉閿欙紝閭d箞鎴戝氨鎵斿嚭涓嬮潰鐨勮拷鍔犻棶棰橈紝榪欎簺闂鏄瘮杈冮毦鐨勶紝鎴戞兂浠呬粎闈炲父浼樼鐨勫簲璇曡呰兘鍋氬緱涓嶉敊銆傛彁鍑鴻繖浜涢棶棰橈紝鎴戝笇鏈涙洿澶氱湅鍒板簲璇曡呭簲浠橀棶棰樼殑鏂規硶錛岃屼笉鏄瓟妗堛備笉綆″浣曪紝浣犲氨褰撴槸榪欎釜濞變箰鍚?#8230;<br><br><strong>鍔ㄦ佸唴瀛樺垎閰嶏紙Dynamic memory allocation錛?/strong><br><br>14. 灝界涓嶅儚闈炲祵鍏ュ紡璁$畻鏈洪偅涔堝父瑙侊紝宓屽叆寮忕郴緇熻繕鏄湁浠庡爢錛坔eap錛変腑鍔ㄦ佸垎閰嶅唴瀛樼殑榪囩▼鐨勩傞偅涔堝祵鍏ュ紡緋葷粺涓紝鍔ㄦ佸垎閰嶅唴瀛樺彲鑳藉彂鐢熺殑闂鏄粈涔堬紵<br><br>榪欓噷錛屾垜鏈熸湜搴旇瘯鑰呰兘鎻愬埌鍐呭瓨紕庣墖錛岀鐗囨敹闆嗙殑闂錛屽彉閲忕殑鎸佽鏃墮棿絳夌瓑銆傝繖涓富棰樺凡緇忓湪ESP鏉傚織涓騫挎硾鍦拌璁鴻繃浜嗭紙涓昏鏄?P.J. Plauger, 浠栫殑瑙i噴榪滆繙瓚呰繃鎴戣繖閲岃兘鎻愬埌鐨勪換浣曡В閲婏級錛屾墍鏈夊洖榪囧ご鐪嬩竴涓嬭繖浜涙潅蹇楀惂錛佽搴旇瘯鑰呰繘鍏ヤ竴縐嶈櫄鍋囩殑瀹夊叏鎰熻鍚庯紝鎴戞嬁鍑鴻繖涔堜竴涓皬鑺傜洰錛氫笅闈㈢殑浠g爜鐗囨鐨勮緭鍑烘槸浠涔堬紝涓轟粈涔堬紵<br><br>char *ptr; <br>if ((ptr = (char *)malloc(0)) == NULL) <br>puts("Got a null pointer"); <br>else <br>puts("Got a valid pointer"); <br><br>榪欐槸涓涓湁瓚g殑闂銆傛渶榪戝湪鎴戠殑涓涓悓浜嬩笉緇忔剰鎶?鍊間紶緇欎簡鍑芥暟malloc錛屽緱鍒頒簡涓涓悎娉曠殑鎸囬拡涔嬪悗錛屾垜鎵嶆兂鍒拌繖涓棶棰樸傝繖灝辨槸涓婇潰鐨勪唬鐮侊紝璇ヤ唬鐮佺殑杈撳嚭鏄?#8220;Got a valid pointer”銆傛垜鐢ㄨ繖涓潵寮濮嬭璁鴻繖鏍風殑涓闂錛岀湅鐪嬭闈㈣瘯鑰呮槸鍚︽兂鍒板簱渚嬬▼榪欐牱鍋氭槸姝g‘銆傚緱鍒版紜殑絳旀鍥虹劧閲嶈錛屼絾瑙e喅闂鐨勬柟娉曞拰浣犲仛鍐沖畾鐨勫熀鏈師鐞嗘洿閲嶈浜涖?br><br>Typedef <br><br>15. Typedef 鍦–璇█涓綣佺敤浠ュ0鏄庝竴涓凡緇忓瓨鍦ㄧ殑鏁版嵁綾誨瀷鐨勫悓涔夊瓧銆備篃鍙互鐢ㄩ澶勭悊鍣ㄥ仛綾諱技鐨勪簨銆備緥濡傦紝鎬濊冧竴涓嬩笅闈㈢殑渚嬪瓙錛?br>#define dPS struct s * <br>typedef struct s * tPS; <br><br>浠ヤ笂涓ょ鎯呭喌鐨勬剰鍥鵑兘鏄瀹氫箟dPS 鍜?tPS 浣滀負涓涓寚鍚戠粨鏋剆鎸囬拡銆傚摢縐嶆柟娉曟洿濂藉憿錛燂紙濡傛灉鏈夌殑璇濓級涓轟粈涔堬紵 <br>榪欐槸涓涓潪甯稿井濡欑殑闂錛屼換浣曚漢絳斿榪欎釜闂錛堟褰撶殑鍘熷洜錛夋槸搴斿綋琚伃鍠滅殑銆傜瓟妗堟槸錛歵ypedef鏇村ソ銆傛濊冧笅闈㈢殑渚嬪瓙錛?<br>dPS p1,p2; <br>tPS p3,p4;<br><br>絎竴涓墿灞曚負 <br>struct s * p1, p2;<br><br>涓婇潰鐨勪唬鐮佸畾涔塸1涓轟竴涓寚鍚戠粨鏋勭殑鎸囷紝p2涓轟竴涓疄闄呯殑緇撴瀯錛岃繖涔熻涓嶆槸浣犳兂瑕佺殑銆傜浜屼釜渚嬪瓙姝g‘鍦板畾涔変簡p3 鍜宲4 涓や釜鎸囬拡銆?br><br><br>16. C璇█鍚屾剰涓浜涗護浜洪渿鎯婄殑緇撴瀯,涓嬮潰鐨勭粨鏋勬槸鍚堟硶鐨勫悧錛屽鏋滄槸瀹冨仛浜涗粈涔堬紵 <br>int a = 5, b = 7, c; <br>c = a+++b;<br><br>榪欎釜闂灝嗗仛涓鴻繖涓祴楠岀殑涓涓剦蹇殑緇撳熬銆備笉綆′綘鐩鎬笉鐩鎬俊錛屼笂闈㈢殑渚嬪瓙鏄畬鍏ㄥ悎涔庤娉曠殑銆傞棶棰樻槸緙栬瘧鍣ㄥ浣曞鐞嗗畠錛熸按騫充笉楂樼殑緙栬瘧浣滆呭疄闄呬笂浼氫簤璁鴻繖涓棶棰橈紝鏍規嵁鏈澶勭悊鍘熷垯錛岀紪璇戝櫒搴斿綋鑳藉鐞嗗敖鍙兘鎵鏈夊悎娉曠殑鐢ㄦ硶銆傚洜姝わ紝涓婇潰鐨勪唬鐮佽澶勭悊鎴愶細 <br>c = a++ + b; <br>鍥犳, 榪欐浠g爜鎸佽鍚巃 = 6, b = 7, c = 12銆?<br><br> <img src ="http://m.shnenglu.com/justin-shi/aggbug/52825.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/justin-shi/" target="_blank">騫藉菇</a> 2008-06-11 02:46 <a href="http://m.shnenglu.com/justin-shi/archive/2008/06/11/52825.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>鎶ㄥ嚮鍖堢墮鍒╁懡鍚嶆硶http://m.shnenglu.com/justin-shi/archive/2008/05/02/48615.html騫藉菇騫藉菇Thu, 01 May 2008 18:26:00 GMThttp://m.shnenglu.com/justin-shi/archive/2008/05/02/48615.htmlhttp://m.shnenglu.com/justin-shi/comments/48615.htmlhttp://m.shnenglu.com/justin-shi/archive/2008/05/02/48615.html#Feedback1http://m.shnenglu.com/justin-shi/comments/commentRss/48615.htmlhttp://m.shnenglu.com/justin-shi/services/trackbacks/48615.html
鍖堢墮鍒╁懡鍚嶆硶鏄竴縐嶇紪紼嬫椂鐨勫懡鍚嶈鑼冦傚懡鍚嶈鑼冩槸紼嬪簭涔﹀啓瑙勮寖涓渶閲嶈涔熸槸鏈瀵屼簤璁殑鍦版柟錛岃嚜鍙や箖鍏靛蹇呬簤涔嬪湴銆傚懡鍚嶈鑼冩湁浣曠敤錛熷洓涓瓧錛氬悕姝h█欏恒傜敤浜屽垎娉曪紝鍛藉悕瑙勮寖鍒嗕負濂界殑鍛藉悕瑙勮寖鍜屽潖鐨勫懡鍚嶈鑼冿紝涔熷氨鏄鍚嶆璦欏虹殑鍛藉悕瑙勮寖鍜屽悕涓嶆璦涓嶉『鐨勫懡鍚嶈鑼冦傚ソ鐨勮垶闉嬫槸璁╄垶鑰呮劅瑙変笉鍒板叾瀛樺湪鐨勮垶闉嬶紝鍧忕殑鑸為瀷鏄鑸炶呭甫鐫闀i搻璧瘋垶銆備竴涓潖鐨勫懡鍚嶈鑼冨叿鏈夌殑鐮村潖鍔涙瘮涓涓ソ鐨勫懡鍚嶈鑼冨叿鏈夌殑鍒涢犲姏瑕佸ぇ寰楀銆?br>
鏈枃瑕佽瘉鏄庣殑鏄細鍖堢墮鍒╁懡鍚嶆硶鏄竴涓潖鐨勫懡鍚嶈鑼冦傛湰鏂囩殑浣滅敤鑼冨洿涓洪潤鎬佸己綾誨瀷緙栫▼璇█銆傛湰鏂囩殑鍒嗘瀽鑼冩湰涓篊璇█鍜孋++璇█銆備笅鏂囦腑鐨勫寛娉曚負鍖堢墮鍒╁懡鍚嶆硶鐨勭畝縐般?br>
涓 鍖堢墮鍒╁懡鍚嶆硶鐨勬垚鏈?br>
鍖堟硶鐨勮〃鐜板艦寮忎負緇欏彉閲忓悕闄勫姞涓婄被鍨嬪悕鍓嶇紑錛屼緥濡傦細nFoo,szFoo,pFoo,cpFoo鍒嗗埆琛ㄧず鏁村瀷鍙橀噺錛屽瓧絎︿覆鍨嬪彉閲忥紝鎸囬拡鍨嬪彉閲忓拰甯告寚閽堝瀷鍙橀噺銆傚彲浠ョ湅鍑猴紝鍖堟硶灝嗗彉閲忕殑綾誨瀷淇℃伅浠庡崟涓鍦扮偣錛堝0鏄庡彉閲忓錛夊鍒跺埌浜嗗涓湴鐐癸紙浣跨敤鍙橀噺澶勶級錛岃繖鏄啑浣欐硶銆傚啑浣欐硶鐨勬垚鏈箣涓鏄緇存姢鍓湰鐨勪竴鑷存с傝繖涓垚鏈湪緙栧啓鍜岀淮鎶や唬鐮佺殑榪囩▼涓渶瑕佹敼鍙樺彉閲忕殑綾誨瀷鏃朵粯鍑恒傚啑浣欐硶鐨勬垚鏈箣浜屾槸鍗犵敤浜嗛澶栫殑絀洪棿銆備竴涓紭縐鐨勪功鍐欒呬細鑷鍦伴伒浠庝竴涓硶鍒欙細浠g爜鏈灝忕粍緇囧崟浣嶇殑闀垮害浠?0涓嚜鐒惰浠ヤ笅涓哄疁錛屽鏋滆秴榪?0琛屽氨搴旇閲嶆柊緇勭粐銆備竴涓彉閲忕殑涔﹀啓絀洪棿浼氱粰榪欎竴娉曞垯娣誨姞涓嶅繀瑕佺殑闅懼害銆?br>
浜?鍖堢墮鍒╁懡鍚嶆硶鐨勬敹鐩?br>
榪欓噷瑕佽瘉鏄庡寛鐗欏埄鍛藉悕娉曠殑鏀剁泭鏄惈緋婄殑錛屾棤娉曢鏈熺殑銆?br>
鑼冩湰1錛歴trcpy(pstrFoo,pcstrFoo2) Vs strcpy(foo,foo2)
鍖堟硶鍦ㄨ繖閲屾湁浠涔堟敹鐩婂憿錛熸垜鐪嬩笉鍒般傛病鏈変竴涓▼搴忓憳浼氭壙璁よ嚜宸變笉鐭ラ亾strcpy鍑芥暟鐨勫弬鏁扮被鍨嬪惂銆?br>
鑼冩湰2錛歶nknown_function(nFoo) Vs unknown_function(foo)
鍖堟硶鍦ㄨ繖閲屾湁浠涔堟敹鐩婂憿錛熸垜鐪嬩笉鍒般傚浜庝竴涓笉鐭ラ亾紜畾綾誨瀷鐨勫嚱鏁幫紝紼嬪簭鍛樺簲璇ュ幓鏌ョ湅璇ュ嚱鏁扮殑鏂囨。錛岃繖鏄竴縐嶆垚鏈備嬌鐢ㄥ寛娉曠殑鍞竴濂藉鏄湅浠g爜鐨勪漢鐭ラ亾榪欎釜鍑芥暟瑕佹眰涓涓暣鍨嬪弬鏁幫紝榪欏張鏈変粈涔堢敤澶勫憿錛熷嚱鏁版槸涓縐嶆帴鍙o紝鍙傛暟鐨勭被鍨嬩粎浠呮槸鎺ュ彛涓殑涓灝忛儴鍒嗐傝濡傚嚱鏁扮殑鍔熻兘銆佸嚭鍙d俊鎭佺嚎紼嬪畨鍏ㄦс佸紓甯稿畨鍏ㄦс佸弬鏁板悎娉曟х瓑閲嶈淇℃伅榪樻槸蹇呴』鏌ラ槄鏂囨。銆?br>
鑼冩湰3錛歯Foo=nBar Vs foo=bar
鍖堟硶鍦ㄨ繖閲屾湁浠涔堟敹鐩婂憿錛熸垜鐪嬩笉鍒般備嬌鐢ㄥ寛娉曠殑鍞竴濂藉鏄湅浠g爜鐨勪漢鐭ラ亾榪欓噷鍙戠敓浜嗕竴涓暣鍨嬪彉閲忕殑澶嶅埗鍔ㄤ綔錛屽惉璧鋒潵娌′粈涔堥棶棰橈紝鍙互瀹夊績鐫″ぇ瑙変簡銆傚鏋滀粬鐪嬪埌鐨勬槸nFoo=szBar錛屽彲鑳戒細浠庣編姊︿腑鎯婇啋銆備笖鎱紝浜嬫儏鐪熺殑浼氭槸榪欐牱鍚楋紵鎴戞兂棣栧厛琚儕閱掔殑搴旇鏄紪璇戝櫒銆傚彟涓鏂歸潰錛宯Foo=nBar鍙槸鍦ㄨ娉曚笂鍚堟硶鑰屽凡錛岀湅浠g爜鐨勪漢鐪熸鍏沖績鐨勬槸璇箟鐨勫悎娉曟э紝鍖堟硶瀵規姣棤甯姪銆傚彟涓鏂歸潰錛屼竴涓紭縐鐨勪功鍐欒呬細鑷鍦伴伒浠庝竴涓硶鍒欙細浠g爜鏈灝忕粍緇囧崟浣嶄腑鐨勪復鏃跺彉閲忎互涓涓や釜涓哄疁錛屽鏋滆秴榪囦笁涓氨搴旇閲嶆柊緇勭粐銆傜粨鍚堝墠榪扮涓涓硶鍒欙紝鍙互寰楀嚭榪欐牱鐨勭粨璁猴細鏄撲簬鐞嗚В鐨勪唬鐮佹湰韜氨搴旇鏄槗浜庣悊瑙g殑錛岃繖鏄唬鐮佺殑鍐呭緩楂樿川閲忋傚ソ鐨勫懡鍚嶈鑼冨鍐呭緩楂樿川閲忕殑鍔╃泭鐩稿綋鏈夐檺錛岃屽潖鐨勫懡鍚嶈鑼冨鍐呭緩楂樿川閲忕殑鎹熷姣斾漢浠兂璞$殑瑕佸ぇ銆?br>
涓?鍖堢墮鍒╁懡鍚嶆硶鐨勫疄鏂?br>
榪欓噷瑕佽瘉鏄庡寛鐗欏埄鍛藉悕娉曞湪C璇█鏄毦浠ュ疄鏂界殑錛屽湪C++璇█涓槸鏃犳硶瀹炴柦鐨勩備粠閫昏緫涓婅錛屽鍖堟硶鐨勬敹鐩婂仛鍑哄惁瀹氱殑緇撹浠ュ悗錛屽啀鏉ヨ璇佸寛娉曠殑鍙鎬э紝鏄敾铔囨坊瓚熾備笉榪囨湁閴翠簬灝忛┈鍝ユ浘璁╁凡灝勬潃涔嬫晫姝葷伆澶嶇噧錛屾垜榪樻槸鍐嶈笍涓婁竴鏀剼涓哄銆?br>
鍓嶉潰璁茶繃錛屽寛娉曟槸綾誨瀷緋葷粺鐨勫啑浣欙紝鎵浠ュ疄鏂藉寛娉曠殑鍏抽敭鏄垜浠槸鍚﹁兘澶熺簿紜湴瀵圭被鍨嬬郴緇熻繘琛屽鍒躲傝繖鍙栧喅浜庣被鍨嬬郴緇熺殑澶嶆潅鎬с?br>
鍏堟潵鐪嬬湅C璇█錛?br>
1.鍐呯疆綾誨瀷錛歩nt,char,float,double 澶嶅埗涓?n,ch,f,d錛熷ソ鍍忔病鏈変粈涔堥棶棰樸備笉榪囪皝鏉ュ憡璇夋垜void搴旇鎬庝箞琛ㄧず錛?br>2.緇勫悎綾誨瀷錛歛rray,union,enum,struct 澶嶅埗涓?a,u,e,s錛熷ソ璞℃瘮杈冨埆鎵?br>榪欓噷鐨勯毦鐐逛笉鏄負涓葷被鍨嬪彇鍚嶏紝鑰屾槸涓哄壇綾誨瀷鍙栧悕銆俛n琛ㄧず鏁村瀷鏁扮粍錛焥foo,sbar琛ㄧず緇撴瀯foo錛岀粨鏋刡ar錛焌usfoo琛ㄧず鑱斿悎緇撴瀯foo鏁扮粍錛熺瘡涓嶇瘡鍟娿?br>3.鐗規畩綾誨瀷錛歱ointer銆俻ointer鍦ㄧ悊璁轟笂搴旇鏄粍鍚堢被鍨嬶紝浣嗘槸鍦–璇█涓彲浠ヨ涓烘槸鍐呯疆綾誨瀷錛屽洜涓篊璇█騫舵病鏈夐潪甯鎬弗鏍煎湴鍖哄垎涓嶅悓鐨勬寚閽堢被鍨嬨備笅闈㈠紑濮嬭〃婕旓細pausfoo琛ㄧず鑱斿悎緇撴瀯foo鏁扮粍鎸囬拡錛焢pp琛ㄧず鎸囬拡鐨勬寚閽堢殑鎸囬拡錛?br>
鍣╂ⅵ榪樻病鏈夌粨鏉燂紝鍐嶆潵鐪嬬湅綾誨瀷緋葷粺鏇撮樋涓轟赴瀵岀殑C++璇█錛?br>
1.class錛氬鏋滆C璇█涓殑struct榪樺彲浠ョ敤stru鎼榪囧幓鐨勮瘽錛屼笉瑕佹ⅵ鎯崇敤cls鏉ユ惇濉濩++涓殑class銆備弗鏍煎湴璁詫紝class鏍規湰灝卞茍涓嶆槸涓涓被鍨嬶紝鑰屾槸鍒涢犵被鍨嬬殑宸ュ叿錛屽湪C++涓紝璇█鍐呯疆綾誨瀷鐨勬暟閲忓拰class鍒涢犵殑鐢ㄦ埛鑷畾涔夌被鍨嬬殑鏁伴噺鐩告瘮瀹屽叏鍙互蹇界暐涓嶈銆俿tdvectorFoo琛ㄧず鏍囧噯搴撳悜閲忕被鍨嬪彉閲廎oo錛熺柉鐙傜殑蹇靛ご銆?br>2.鍛藉悕絀洪棿錛歜oostfilesystemiteratorFoo錛岃〃紺篵oost絀洪棿filesystem瀛愮┖闂撮亶鍘嗙洰褰曠被鍨嬪彉閲廎oo錛熺▼搴忓憳瑕佸穿婧冧簡銆?br>3.妯℃澘錛氫綘璁板緱std::map<std::string,std::string>綾誨瀷鐨勭‘鍒囧悕瀛楀悧錛熸垜鏄涓嶅緱浜嗭紝濂藉儚瓚呰繃255涓瓧絎︼紝榪樻槸楗朵簡鎴戝惂銆?br>4.妯℃澘鍙傛暟錛歵emplate <class T, class BinaryPredicate>const T& max(const T& a, const T& b, BinaryPredicate comp) 鑱槑鐨勪綘錛岃鐢ㄥ寛娉曚負T鍛藉悕銆備笂甯濆湪鍙戠瑧銆?br>5.綾誨瀷淇グ錛歴tatic,extern,mutable,register,volatile,const,short,long,unsigned 鍣╂ⅵ鍔犱笂淇グ鏄粈涔堬紵榪樻槸鍣╂ⅵ銆?

騫藉菇 2008-05-02 02:26 鍙戣〃璇勮
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榪欎釜絀洪棿鍏堢暀鐫錛岀瓑澶т簩鑳戒笂緗戜簡鍐嶅啓錛?/title><link>http://m.shnenglu.com/justin-shi/archive/2008/02/05/42544.html</link><dc:creator>騫藉菇</dc:creator><author>騫藉菇</author><pubDate>Tue, 05 Feb 2008 12:26:00 GMT</pubDate><guid>http://m.shnenglu.com/justin-shi/archive/2008/02/05/42544.html</guid><wfw:comment>http://m.shnenglu.com/justin-shi/comments/42544.html</wfw:comment><comments>http://m.shnenglu.com/justin-shi/archive/2008/02/05/42544.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/justin-shi/comments/commentRss/42544.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/justin-shi/services/trackbacks/42544.html</trackback:ping><description><![CDATA[榪欎釜絀洪棿鍏堢暀鐫錛岀瓑澶т簩鑳戒笂緗戜簡鍐嶅啓錛?br>榪欎釜絀洪棿鍏堢暀鐫錛岀瓑澶т簩鑳戒笂緗戜簡鍐嶅啓錛?br><img src="http://m.shnenglu.com/images/cppblog_com/justin-shi/1_135440G2.gif" border=0> <img src ="http://m.shnenglu.com/justin-shi/aggbug/42544.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/justin-shi/" target="_blank">騫藉菇</a> 2008-02-05 20:26 <a href="http://m.shnenglu.com/justin-shi/archive/2008/02/05/42544.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item></channel></rss> <a href="http://m.shnenglu.com/">青青草原综合久久大伊人导航_色综合久久天天综合_日日噜噜夜夜狠狠久久丁香五月_热久久这里只有精品</a> <div style="position:fixed;left:-9000px;top:-9000px;"><font id="pjuwb"></font><button id="pjuwb"><pre id="pjuwb"></pre></button><sub id="pjuwb"></sub><tbody id="pjuwb"><var id="pjuwb"><address id="pjuwb"></address></var></tbody><listing id="pjuwb"><label id="pjuwb"><strong id="pjuwb"></strong></label></listing><wbr id="pjuwb"><small id="pjuwb"><tbody id="pjuwb"></tbody></small></wbr><ins id="pjuwb"><xmp id="pjuwb"></xmp></ins><style id="pjuwb"></style><label id="pjuwb"><em id="pjuwb"><li id="pjuwb"></li></em></label><samp id="pjuwb"></samp><menu id="pjuwb"><input id="pjuwb"></input></menu><pre id="pjuwb"><tbody id="pjuwb"><tfoot 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