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錛堣漿錛夎川鏁扮畻娉曞ぇ鍏紝鍙奀紼嬪簭瀹炵幇浼樺寲璇﹁В (浜? 絳涢夋硶http://m.shnenglu.com/percyph/archive/2009/05/14/82963.html灝忚櫕铏?/dc:creator>灝忚櫕铏?/author>Thu, 14 May 2009 07:48:00 GMThttp://m.shnenglu.com/percyph/archive/2009/05/14/82963.htmlhttp://m.shnenglu.com/percyph/comments/82963.htmlhttp://m.shnenglu.com/percyph/archive/2009/05/14/82963.html#Feedback0http://m.shnenglu.com/percyph/comments/commentRss/82963.htmlhttp://m.shnenglu.com/percyph/services/trackbacks/82963.html璐ㄦ暟鐨勫畾涔?/strong>

涓涓暟錛屽鏋滃彧鏈?鍜屽畠鏈韓涓や釜鍥犳暟錛岃繖鏍風殑鏁板彨鍋氳川鏁幫紝鍙堢О绱犳暟銆?/p>

鍦ㄤ笂鏂?銆?a target=_blank>绱犳暟綆楁硶澶у叏錛屽強C紼嬪簭瀹炵幇浼樺寲璇﹁В (涓) 璇曢櫎娉?/a>銆嬩腑鎴戜滑宸茬粡鎺㈣浜嗘眰瑙g礌鏁扮殑涓綾葷畻娉曪紝騫朵笖灝嗚瘯闄ゆ硶浠庢渶鍒濈殑浣庢晥鐗堟湰浼樺寲鐨勯珮鏁堢殑V2銆傞偅涔堬紝榪樻湁娌℃湁鍏跺畠鏇翠匠綆楁硶鍛紵榪欏氨鏄笅闈笁钘忚鍜屽ぇ瀹舵帰璁ㄧ殑鍐呭

鍚堟暟榪囨護絳涢夋硶

綆楁硶鎻忚堪錛氭垜浠煡閬擄紝绱犳暟N涓嶈兘琚?~(N-1)闂寸殑浠諱綍鏁版暣闄わ紱鍙嶈繃鏉ョ湅錛屽彧瑕佽兘琚?~(N-1)闂寸殑浠諱綍鏁版暣闄ょ殑N錛岄兘涓嶆槸绱犳暟銆傛墍浠ユ垜浠彲浠ラ噰鐢ㄤ竴涓畝鍗曠殑鎺掗櫎娉曪細灝辨槸瀵筃浠ュ唴鐨勬墍鏈夋暟錛屽彧瑕侀愪釜鍘婚櫎鍊間負2~(N-1)鐨勫嶆暟鐨勬暟錛屽墿涓嬬殑灝辨槸绱犳暟銆?/p>

C璇█瀹炵幇

// 鍚堟暟榪囨護絳涢夋硶 Ver1 
// 鍙傛暟錛歯 姹傝Вn浠ュ唴(鍖呮嫭n)鐨勭礌鏁?br>// 榪斿洖鍊鹼細n浠ュ唴绱犳暟涓暟
int CompositeNumFilterV1(int n)
{
 int i, j;
 // 绱犳暟鏁伴噺緇熻
 int count = 0;
 // 鍒嗛厤绱犳暟鏍囪絀洪棿錛岀粨鍚堝悗鏂囨濊冧負浣?1
 char* flag = (char*)malloc( n+1 );
 
 // 鍒濆鍖栫礌鏁版爣璁?
 for (i=2; i<=n; i++)
 {
  // 涓轟粈涔?(p+i)瑕佸啓鎴恌lag[i]鍛紵鍙鎬ф洿浣沖皵
  flag[i] = 1;
 }
 
 // 鍐欑▼搴忚娉ㄦ剰鎺掔増鍜岀暀絀猴紝鏂逛究闃呰錛屼篃鍙噺灝戝嚭閿欏嚑鐜?br> // 浠?~(N-1)涓哄洜瀛愯繃婊ゅ悎鏁?
 for (i=2; i < n; i++)
 {
  for (j=2; i*j <= n; j++)
  {
   // i*j鏄敱i,j涓ゆ暣鏁扮浉涔樿屽緱錛屾樉鐒朵笉鏄礌鏁?br>   flag[i*j] = 0;
  }
 }
 
 // 緇熻绱犳暟涓暟
 for (i=2; i<=n; i++)
 {
  // 鍏跺疄if(flag)灝卞叾鍚屾牱浣滅敤浜嗭紝浣嗚繖涔堝啓鏄湁鐣欒█鐨?
  // 璇峰弬闃呫奀璇█紼嬪簭璁捐甯歌閿欒鍓栨瀽鍙婅В鍐充箣閬撱嬩竴鏂?
  if (1 == flag[i]) count++;
 }
  
 // 鍥犺緭鍑鴻垂鏃訛紝涓斿拰綆楁硶鏍稿績鐩稿叧涓嶅ぇ錛屾晠鐣?br> 
 // 閲婃斁鍐呭瓨錛屽埆蹇樹簡浼犺涓殑鍐呭瓨娉勬紡
 free(flag);
 
 return count;
}

鍦ㄤ笂鏂囩粰鍑虹殑main鍑芥暟涓互涓嶅悓鍙傛暟璋冪敤CompositeNumFilterV1鍑芥暟錛屽緱鍒版墽琛岀粨鏋滃涓嬶細

[100000]浠ュ唴绱犳暟涓暟錛?592, 璁$畻鐢ㄦ椂錛?5姣
[1000000]浠ュ唴绱犳暟涓暟錛?8498, 璁$畻鐢ㄦ椂錛?25姣
[5000000]浠ュ唴绱犳暟涓暟錛?48513, 璁$畻鐢ㄦ椂錛?578姣
[10000000]浠ュ唴绱犳暟涓暟錛?64579, 璁$畻鐢ㄦ椂錛?281姣

娉細鍥犵▼搴忔槸闈炵嫭鍗犳ц繍琛岀殑錛屾墍浠ユ椂闂翠笉鏄畬鍏ㄧ簿紜殑錛屼絾鍩烘湰鑳藉弽鏄犲疄鎯?/p>

鏄劇劧錛屾瘮涓婃枃涓殑璇曢櫎娉曡蹇紝鑰屼笖璋侀兘鍙互鐪嬪埌涓婁緥鏄竴涓湭緇忎紭鍖栫殑綺楅檵鐗堟湰錛屽ソ澶氬湴鏂規槸涓夎棌鏁呮剰閲囩敤姣旇緝浣庢晥鍋氭硶錛屼負浜嗕笌鍚庢枃鐨勪紭鍖栫増姣旇緝錛屽嚫鏄句紭鍖栦箣閲嶈錛屼篃涓轟簡鍒濆鑰呰浣忓埆閲囩敤綾諱技浣庢晥鍋氭硶錛屼笅闈㈡垜浠紑濮嬩紭鍖栦箣鏃?/p>

浼樺寲鍒嗘瀽

涓婇潰CompositeNumFilterV1鍑芥暟瀛樺湪鐨勯棶棰樻湁錛?/p>

  1. 鍦ㄥ灞傚驚鐜紝闇瑕佷竴鐩存墽琛屽埌n-1鍚楋紵涓嶈錛屽洜涓簄/2~n-1闂寸殑鏁版樉鐒朵笉鑳芥暣鍑簄
  2. 鍦ㄥ唴灞傚驚鐜腑閲嶅浣跨敤i*j鏄劇劧鏄綆鏁堢殑錛岃冭檻鍒拌綆楁満涓姞鍑忚繍綆楅熷害姣斾箻闄ゅ揩錛屽彲浠ヨ冭檻鍙樹箻娉曚負鍔犳硶
  3. 鍦ㄥ驚鐜慨鏀筬lag榪囩▼涓紝鍏跺疄鏈夊緢澶氭暟浼氳閲嶅璁$畻鑻ュ共嬈★紝姣斿6=2*3=3*2錛屼細琚噸澶嶇疆0錛岀被浼兼搷浣滃緢澶氾紝鎵浠ユ垜浠緱璁炬硶閬垮厤鎴栧噺灝慺lag閲嶅緗?

鎹笂榪板垎鏋愶紝鎴戜滑鍙皢紼嬪簭浼樺寲濡備笅錛?/p>

// 鍚堟暟榪囨護絳涢夋硶 Ver2 
// 鍙傛暟錛歯 姹傝Вn浠ュ唴(鍖呮嫭n)鐨勭礌鏁?br>// 榪斿洖鍊鹼細n浠ュ唴绱犳暟涓暟
int CompositeNumFilterV2(int n)
{
 int i, j;
 // 绱犳暟鏁伴噺緇熻
 int count = 0;
 // 鍒嗛厤绱犳暟鏍囪絀洪棿錛屾槑鐧?1鍘熷洜浜嗗惂錛屽洜涓烘氮璐逛簡涓涓猣lag[0]
 char* flag = (char*)malloc( n+1 );
 
 // 鍒濆鍖栫礌鏁版爣璁幫紝瑕侀珮鏁堢偣鍜?br> flag[2] = 1;
 // 娉ㄦ剰鏄痠<n涓嶆槸涓婁緥涓殑i<=n浜嗭紝鐞嗙敱鑷?
 for (i=3; i<n; i++)
 {
  flag[i++] = 1;
  // 鍋舵暟鑷劧涓嶆槸绱犳暟錛岀洿鎺ョ疆0濂戒簡
  flag[i] = 0;
 }
 // n涓哄鏁?
 if (n%2 != 0)
 {
  flag[n] = 1;
 }
 
 // 浠?寮濮媐ilter錛屽洜涓?鐨勫嶆暟鏃╁湪鍒濆鍖栨椂浠e氨騫叉帀浜?br> // 鍒皀/2姝㈢殑鐞嗙敱榪樿璇村悧
 for (i=3; i <= n/2; i++)
 {
  // i鏄悎鏁幫紝璇鋒瓏鐫鍚э紝鍥犱負鎮ㄧ殑宸ヤ綔鏃╂湁鎮ㄧ殑璐ㄥ洜瀛愪唬鍔充簡
  if (0 == flag[i]) continue;
  
  // 浠巌鐨?鍊嶅紑濮嬭繃婊わ紝鍙樹箻娉曚負鍔犳硶 
  for (j=i+i; j <= n; j+=i)
  {
   flag[j] = 0;
  }
 }
 
 // 緇熻绱犳暟涓暟
 for (i=2; i<=n; i++)
 {
  if (flag[i]) count++;
 }
  
 // 鍥犺緭鍑鴻垂鏃訛紝涓斿拰綆楁硶鏍稿績鐩稿叧涓嶅ぇ錛屾晠鐣?br> 
 // 閲婃斁鍐呭瓨錛屽埆蹇樹簡浼犺涓殑鍐呭瓨娉勬紡
 free(flag);
 
 return count;
}

鍐嶆潵璋冪敤CompositeNumFilterV2寰楀埌鎵ц緇撴灉錛?/p>

[100000]浠ュ唴绱犳暟涓暟錛?592, 璁$畻鐢ㄦ椂錛歯澶皬錛屾椂闂寸簿搴︿笉澶?br>[1000000]浠ュ唴绱犳暟涓暟錛?8498, 璁$畻鐢ㄦ椂錛?1姣
[5000000]浠ュ唴绱犳暟涓暟錛?48513, 璁$畻鐢ㄦ椂錛?53姣
[10000000]浠ュ唴绱犳暟涓暟錛?64579, 璁$畻鐢ㄦ椂錛?062姣
[100000000]浠ュ唴绱犳暟涓暟錛?761455, 璁$畻鐢ㄦ椂錛?2973姣

鍝囧搰錛屾瘮鏄ㄥぉ鐨勮瘯闄ゅ彂蹇簡濂藉鍊嶏紝鍙綆楁硶鐨勫▉鍔涳紝鍊煎緱濂藉ソ瀛︿範錛屽埆璇村綆楁硶娌$敤鍜?/p>

涓婁緥鐫閭d釜璁$畻涓浜夸互鍐呯殑绱犳暟鍙綰?3縐掞紝搴旇綆椾笉閿欎簡錛屼粖澶╂槸鍚﹀彲浠ヤ紤鎭簡鍛紵No錛屾垜浠榪芥眰鏋侀檺錛?/p>

int CompositeNumFilterV3(int n)
{
 int i, j;
 // 绱犳暟鏁伴噺緇熻
 int count = 0;
 // 鍒嗛厤绱犳暟鏍囪絀洪棿錛屾槑鐧?1鍘熷洜浜嗗惂錛屽洜涓烘氮璐逛簡涓涓猣lag[0]
 char* flag = (char*)malloc( n+1 );
 // 騫插槢鐢ㄧ殑錛岃浠旂粏鐮旂┒涓嬫枃
 int mpLen = 2*3*5*7*11*13;
 char magicPattern[mpLen];
 // 濂囨殑浠g爜錛寃hy錛屾濊冩棤娉曚唬鍔籌紝鎯籌紒
 for (i=0; i<mpLen; i++)
 {
  magicPattern[i++] = 1;
  magicPattern[i++] = 0;
  magicPattern[i++] = 0;
  magicPattern[i++] = 0;
  magicPattern[i++] = 1;
  magicPattern[i] = 0;
 }
 for (i=4; i<=mpLen; i+=5)
  magicPattern[i] = 0;
 for (i=6; i<=mpLen; i+=7)
  magicPattern[i] = 0;
 for (i=10; i<=mpLen; i+=11)
  magicPattern[i] = 0;
 for (i=12; i<=mpLen; i+=13)
  magicPattern[i] = 0;
 
 // 鏂扮殑鍒濆鍖栨柟娉?灝?,3,5,7,11,13鐨勫嶆暟鍏ㄥ共鎺?br> // 鑰屼笖閲囩敤memcpy浠pLen闀跨殑magicPattern鏉ユ壒閲忓鐞?
 int remainder = n%mpLen;
 char* p = flag+1;
 char* pstop = p+n-remainder;
 while (p < pstop)
 {
  memcpy(p, magicPattern, mpLen);
  p += mpLen;
 }
 if (remainder > 0)
 {
  memcpy(p, magicPattern, remainder);
 }
 flag[2] = 1;
 flag[3] = 1;
 flag[5] = 1;
 flag[7] = 1;
 flag[11] = 1;
 flag[13] = 1;
 
 // 浠?7寮濮媐ilter錛屽洜涓?,3,5,7,11,13鐨勫嶆暟鏃╄kill浜?
 // 鍒皀/13姝㈢殑錛屽搱鍝堬紝灝戜簡濂藉鍚?br> int stop = n/13;
 for (i=17; i <= stop; i++)
 {
  // i鏄悎鏁幫紝璇鋒瓏鐫鍚э紝鍥犱負鎮ㄧ殑宸ヤ綔鏃╂湁鎮ㄧ殑璐ㄥ洜瀛愪唬鍔充簡
  if (0 == flag[i]) continue;
  
  // 浠巌鐨?7鍊嶅紑濮嬭繃婊?br>  int step = i*2;
  for (j=i*17; j <= n; j+=step)
  {
   flag[j] = 0;
  }
 }
 
 // 緇熻绱犳暟涓暟
 for (i=2; i<=n; i++)
 {
  if (flag[i]) count++;
 }
  
 // 鍥犺緭鍑鴻垂鏃訛紝涓斿拰綆楁硶鏍稿績鐩稿叧涓嶅ぇ錛屾晠鐣?br> 
 // 閲婃斁鍐呭瓨錛屽埆蹇樹簡浼犺涓殑鍐呭瓨娉勬紡
 free(flag);
 
 return count;
}

鍐嶇湅CompositeNumFilterV3鎵ц緇撴灉錛?/p>

[1000000]浠ュ唴绱犳暟涓暟錛?8498, 璁$畻鐢ㄦ椂錛?5姣
[5000000]浠ュ唴绱犳暟涓暟錛?48513, 璁$畻鐢ㄦ椂錛?03姣
[10000000]浠ュ唴绱犳暟涓暟錛?64579, 璁$畻鐢ㄦ椂錛?15姣
[100000000]浠ュ唴绱犳暟涓暟錛?761455, 璁$畻鐢ㄦ椂錛?421姣

鍐嶆浼樺寲鍚庨熷害鎻愬崌浜嗗張涓鍊嶅乏鍙籌紝涓夎棌涓嶇鏈夌偣婊¤凍浜嗭紝鐫¤涔燂紒



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(杞?绱犳暟綆楁硶澶у叏錛屽強C紼嬪簭瀹炵幇浼樺寲璇﹁В (涓) 璇曢櫎娉?/title><link>http://m.shnenglu.com/percyph/archive/2009/05/14/82961.html</link><dc:creator>灝忚櫕铏?/dc:creator><author>灝忚櫕铏?/author><pubDate>Thu, 14 May 2009 07:46:00 GMT</pubDate><guid>http://m.shnenglu.com/percyph/archive/2009/05/14/82961.html</guid><wfw:comment>http://m.shnenglu.com/percyph/comments/82961.html</wfw:comment><comments>http://m.shnenglu.com/percyph/archive/2009/05/14/82961.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://m.shnenglu.com/percyph/comments/commentRss/82961.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/percyph/services/trackbacks/82961.html</trackback:ping><description><![CDATA[<p>杞嚜錛?a ><a >http://www.doforfun.net/article/20090504/543.htm</a><br></a>緇忓父鏈夊垵瀛﹁呰闂眰瑙鍐呮墍鏈夌礌鏁幫紙璐ㄦ暟錛夌殑闂錛屽姝わ紝緗戜笂鐨勮В絳斾篃寰堝錛屼絾寰堝瑕佷箞涓嶅涓撲笟錛岃涔堝彧鏈夌▼搴忔病鏈夌畻娉曡В鏋愶紝鎵浠ヤ笁钘忓ぇ鍘﹀姝ら棶棰樺仛涓皬緇擄紝鎺㈣涓涓嬫眰瑙g礌鏁扮殑甯歌綆楁硶錛屽悓鏃剁粰鍑虹浉搴旂殑C璇█紼嬪簭鍙婂叾瑙f瀽銆備負浜嗘柟渚垮垵瀛﹁呯悊瑙o紝鏈枃灝嗕粠鏄撳埌闅鵑槓榪頒笉鍚岀畻娉曪紝楂樻墜鍙互鐩存帴鐪嬪悗闈㈢殑楂樻晥綆楁硶</p> <p><strong>璐ㄦ暟鐨勫畾涔?/strong></p> <p>涓涓暟錛屽鏋滃彧鏈?鍜屽畠鏈韓涓や釜鍥犳暟錛岃繖鏍風殑鏁板彨鍋氳川鏁幫紝鍙堢О绱犳暟銆?nbsp;<br></p> <p><strong>璇曢櫎鍒ゆ柇娉?/strong></p> <p><strong>綆楁硶鎻忚堪</strong>錛氫粠涓婅堪瀹氫箟鍙煡錛岀礌鏁頒笉鑳借1鍜屽畠鏈韓涔嬪鐨勬暟鏁撮櫎錛屾墍浠ワ紝鍒ゆ柇涓涓暟x鏄惁绱犳暟鍙鐪嬪畠鏄惁鑳借2~sqrt(x)闂寸殑鏁版暣闄ゅ嵆鍙紱鑰屾眰N鍐呮墍鏈夌礌鏁板垯鏄驚鐜噸澶嶄笂榪拌繃紼嬨?/p> <p><strong>C璇█瀹炵幇</strong>錛?/p> <pre>#include <time.h><br>#include <malloc.h> <br>#define N 100000<br>// 綆鍗曡瘯闄ゅ垽鏂硶 Ver1 <br>int SimpleDivisionV1(int n)<br>{<br> int i,j;<br> // 绱犳暟鏁伴噺緇熻 <br> int count = 0;<br> // 鍒嗛厤瀛樻斁緇撴灉鐨勭┖闂?<br> int* primes = (int*)malloc( sizeof(int)*n ); <br> <br> // 2鏄礌鏁拌皝閮界煡閬擄紝涓嶇畻浜?<br> primes[count++] = 2;<br> // 寰幆璁$畻3~n闂寸殑鏁?<br> for (i=3; i<=n; i++)<br> {<br>  // 涓轟粈涔堟槸sqrt(i)錛屾濊冧竴涓?<br>  for (j=2; j<=sqrt(i); j++)<br>  {<br>   // i琚玧鏁撮櫎錛屾樉鐒朵笉鏄礌鏁頒簡 <br>   if (i%j == 0) break;<br>  }<br>  // i涓嶈兘琚?~sqrt(i)闂寸殑鏁版暣闄?绱犳暟涔?<br>  if (j > sqrt(i))<br>  {<br>   primes[count++] = i;<br>  }<br> }<br> <br> // 鍥犺緭鍑鴻垂鏃訛紝涓斿拰綆楁硶鏍稿績鐩稿叧涓嶅ぇ錛屾晠鐣?br>  <br> // 閲婃斁鍐呭瓨錛屽埆蹇樹簡浼犺涓殑鍐呭瓨娉勬紡 <br> free(primes);<br> <br> return count;<br>} <br><br>void main()<br>{<br> int count;<br> clock_t start, end;<br> // time鍑芥暟涓嶅綺劇‘錛岀敤clock鍑戝悎涓涓嬪惂 <br> start = clock(); <br> count = SimpleDivisionV1(N);<br> <br> end = clock();<br> printf("[%d]浠ュ唴绱犳暟涓暟錛?d, 璁$畻鐢ㄦ椂錛?d姣\n", N, count, end-start);<br> getch(); <br>}</pre> <p>璁$畻緇撴灉錛?br>[100000]浠ュ唴绱犳暟涓暟錛?592, 璁$畻鐢ㄦ椂錛?68姣<br>[1000000]浠ュ唴绱犳暟涓暟錛?8498, 璁$畻鐢ㄦ椂錛?0859姣<br>[5000000]浠ュ唴绱犳暟涓暟錛?48513, 璁$畻鐢ㄦ椂錛?03560姣</p> <p>鍣㈠櫌錛岀畻綆楀崄涓囪繕琛岋紝鐧句竾灝?0縐掑浜嗭紝鑰屼笖鏃墮棿澧為暱寰堝揩錛岃繖涓嶈錛屽緱浼樺寲涓涓嬶紒</p> <p><strong>浼樺寲鍒嗘瀽</strong>錛?/p> <p>浠旂粏鐮旂┒涓涓婼impleDivisionV1鎴戜滑鍙互鍙戠幇浠ヤ笅鍑犱釜闂錛?/p> <ol> <li>鍦ㄥ驚鐜潯浠朵腑閲嶅璋冪敤sqrt(i)鏄劇劧鏄瘮杈冩氮璐規椂闂寸殑 <li>鍒ゆ柇绱犳暟錛岀湡鐨勯渶瑕佹嬁2~sqrt(i)闂寸殑鎵鏈夋暣鏁板幓闄ゅ悧錛熸垜浠煡閬擄紝鍚堟暟閮藉彲浠ュ垎瑙f垚鑻ュ共璐ㄦ暟錛屾墍浠ュ彧瑕?~sqrt(i)闂寸殑璐ㄦ暟涓嶈兘鏁撮櫎i鍗沖彲</li> </ol> <p>鏍規嵁涓婇潰涓ょ偣錛屾垜浠彲灝哠impleDivisionV1鍗囩駭涓篠impleDivisionV2錛屽涓?/p> <pre> // 綆鍗曡瘯闄ゅ垽鏂硶 Ver2 <br>int SimpleDivisionV2(int n)<br>{<br> int i, j, k, stop;<br> // 绱犳暟鏁伴噺緇熻 <br> int count = 0;<br> // 鍒嗛厤瀛樻斁緇撴灉鐨勭┖闂?<br> int* primes = (int*)malloc( sizeof(int)*n ); <br> <br> // 2鏄礌鏁拌皝閮界煡閬擄紝涓嶇畻浜?<br> primes[count++] = 2;<br> stop = count;<br> // 寰幆璁$畻3~n闂寸殑鏁?<br> for (i=3; i<=n; i++)<br> {<br>  k = sqrt(i);<br>  // 鍦ㄥ驚鐜潯浠朵腑閲嶅璋冪敤sqrt鏄綆鏁堝仛娉曪紝鏁呭紩鍏 <br>  while (primes[stop] <= k && stop < count)<br>   stop++;<br>  // stop騫蹭粈涔堢敤錛屾濊冧竴涓?br>  for (j=0; j<stop; j++)<br>  {<br>   if (i%primes[j] == 0) break;<br>  }<br>  // i涓嶈兘琚?~sqrt(i)闂寸殑绱犳暟鏁撮櫎錛岃嚜鐒朵篃涓嶈兘琚叾浠栨暟鏁撮櫎,绱犳暟涔?<br>  if (j == stop)<br>  {<br>   primes[count++] = i;<br>  }<br> }<br> <br> // 鍥犺緭鍑鴻垂鏃訛紝涓斿拰綆楁硶鏍稿績鐩稿叧涓嶅ぇ錛屾晠鐣?br>  <br> // 閲婃斁鍐呭瓨錛屽埆蹇樹簡浼犺涓殑鍐呭瓨娉勬紡 <br> free(primes);<br> <br> return count;<br>} </pre> <p>鐒跺悗灝唌ain涓皟鐢ㄧ殑鍑芥暟鏇挎崲涓篠impleDivisionV2錛屽湪鐪嬩竴涓嬫墽琛岀粨鏋滐細</p> <p>[100000]浠ュ唴绱犳暟涓暟錛?592, 璁$畻鐢ㄦ椂錛?6姣<br>[1000000]浠ュ唴绱犳暟涓暟錛?8498, 璁$畻鐢ㄦ椂錛?46姣<br>[5000000]浠ュ唴绱犳暟涓暟錛?48513, 璁$畻鐢ㄦ椂錛?515姣<br>[10000000]浠ュ唴绱犳暟涓暟錛?64579, 璁$畻鐢ㄦ椂錛?000姣</p> <p>寰堝紑蹇冪殑鐪嬪埌錛岀粡榪囦紭鍖栵紝閫熷害鎻愰珮浜嗗嚑鍗佸嶏紝灝ゅ叾鏄椂闂村闀挎洸綰跨殑鍧″害鍙樺皬浜嗭紝N鍊艱秺澶э紝V2鍑芥暟姣擵1鐨勬晥鐜囧氨瓚婇珮</p> <p>瀵逛簬璇曢櫎鍒ゆ柇榪欑璐ㄦ暟綆楁硶鏉ヨ錛屼笁钘忚涓篠impleDivisionV2鍩烘湰宸茬粡鎺ヨ繎鏋侀檺錛屼笉澶у彲鑳芥湁閲忕駭涓婄殑紿佺牬浜嗭紝鏈夊叴瓚g殑鏈嬪弸鍙互鑷繁榪涗竴姝ヤ紭鍖栥傚垵瀛﹁呴櫎浜嗗弬鐪嬩笂榪頒緥瀛愬錛屽彲浠ュ皾璇曞仛鍚勭淇敼鍙婄粏鑺備紭鍖栵紝涔熷彲浠ュ皢闄ゆ硶鍙樹箻娉曪紝澶氬姞緇冧範鏄涔犵紪紼嬬殑濂芥柟娉曘?/p> <p>铏界劧錛屼笂渚嬩腑V2宸茬粡姣擵1蹇簡寰堝浜嗭紝浣嗛殢鐫N鐨勫澶э紝鑰楁椂榪樻槸涓嶅皯錛岄偅涔堟垜浠繕鏈夋洿濂界殑鏂規硶鍚楋紵</p> <img src ="http://m.shnenglu.com/percyph/aggbug/82961.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/percyph/" target="_blank">灝忚櫕铏?/a> 2009-05-14 15:46 <a href="http://m.shnenglu.com/percyph/archive/2009/05/14/82961.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>錛堣漿錛塯luPerspective鍜実luLookAt鐨勫叧緋?/title><link>http://m.shnenglu.com/percyph/archive/2009/04/01/78537.html</link><dc:creator>灝忚櫕铏?/dc:creator><author>灝忚櫕铏?/author><pubDate>Wed, 01 Apr 2009 03:03:00 GMT</pubDate><guid>http://m.shnenglu.com/percyph/archive/2009/04/01/78537.html</guid><wfw:comment>http://m.shnenglu.com/percyph/comments/78537.html</wfw:comment><comments>http://m.shnenglu.com/percyph/archive/2009/04/01/78537.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/percyph/comments/commentRss/78537.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/percyph/services/trackbacks/78537.html</trackback:ping><description><![CDATA[杞嚜錛?<a >http://hi.baidu.com/sunguangran/blog/item/ded90ced94779dd2b31cb11c.html</a><br><br>緇堜簬鎼炴槑鐧絞luPerspective鍜実luLookAt鐨勫叧緋諱簡<br><br>鍑芥暟鍘熷瀷<br>gluLookAt(GLdoble eyex,GLdouble eyey,GLdouble eyez,GLdouble centerx,GLdouble centery,GLdouble centerz,GLdouble upx,GLdouble upy,GLdouble upz);<br><br>gluPerspective(GLdouble fovy,GLdouble aspect,GLdouble zNear,GLdouble zFar)<br><br>涓涓竴涓潵,棣栧厛寰楄緗甮luPerspective,鏉ョ湅鐪嬪畠鐨勫弬鏁伴兘琛ㄧず浠涔堟剰鎬?br>fovy,榪欎釜鏈闅劇悊瑙?鎴戠殑鐞嗚В鏄?鐪肩潧鐫佸紑鐨勮搴?鍗?瑙嗚鐨勫ぇ灝?濡傛灉璁劇疆涓?,鐩稿綋浣犻棴涓婄溂鐫涗簡,鎵浠ヤ粈涔堜篃鐪嬩笉鍒?濡傛灉涓?80,閭d箞鍙互璁や負浣犵殑瑙嗙晫寰堝箍闃?<br>aspect,榪欎釜濂界悊瑙?灝辨槸瀹為檯紿楀彛鐨勭旱妯瘮,鍗硏/y<br>zNear,榪欎釜鍛?琛ㄧず浣犺繎澶?鐨勮闈?<br>zFar琛ㄧず榪滃鐨勮闈?<br><br>濡傛灉榪樻病鏈夌悊瑙e氨緇х畫鐪?<br>鎴戜滑鐭ラ亾,榪滃鐨勪笢瑗跨湅璧鋒潵瑕佸皬涓浜?榪戝鐨勪笢瑗跨湅璧鋒潵浼氬ぇ涓浜?榪欏氨鏄忚鍘熺悊<br>濡備笅鍥炬墍紺?br> <div forimg="1"><img class=blogimg src="http://hiphotos.baidu.com/kkun/pic/item/6d203a299bf5aef799250a2d.jpg" border=0 small="0"><br> <div forimg="1"><img class=blogimg src="http://hiphotos.baidu.com/kkun/pic/item/493835fae74b34809e5146aa.jpg" border=0 small="0"></div> <br><br>鍋囪閭d袱鏉$嚎琛ㄧず鍏礬,鐞嗚涓婅,瀹冧滑鐨勪袱鏉¤竟鏄鉤琛岀殑,<br>浣嗙幇瀹炴儏鍐典腑,瀹冧滑鍦ㄨ繙鏂?鍙互鏃犻檺榪?鎬昏鐩鎬氦浜庝竴鐐?<br>瀹為檯綰挎AB鐨勯暱搴?CD鐨勯暱搴?鍙槸鍦ㄦ渚嬩腑浣跨敤浜嗛忚瑙?鏁呬細鏈夊涓婄殑鏁堟灉,鏄笉鏄緢鎺ヨ繎鐜板疄鐨勬儏鍐?<br><br>緇撳悎鎴戜滑鍒氭墠榪欎袱涓嚱鏁?br>zNear,鐪肩潧璺濈榪戝鐨勮窛紱?鍋囪涓?0綾寵繙,璇蜂笉瑕佽緗負璐熷?OpenGl灝卞偦浜?涓嶇煡閬撴庝箞綆椾簡,<br>zFar琛ㄧず榪滃鐨勮闈?鍋囪涓?000綾寵繙,<br>灝辨槸榪欎袱涓弬鏁扮殑鎰忎箟浜?<br><br>鍐嶈В閲婁笅閭d釜"鐪肩潧鐫佸紑鐨勮搴?鏄粈涔堟剰鎬?<br>棣栧厛鍋囪鎴戜滑鐜板湪璺濈鐗╀綋鏈?0涓崟浣嶈窛紱昏繙鐨勪綅緗?<br>鍦ㄧ溂鐫涚潄寮瑙掑害璁劇疆涓?5鏃?璇風湅澶у睆騫?<br> <div forimg="1"><a target=_blank> <div forimg="1"><img class=blogimg src="http://hiphotos.baidu.com/kkun/pic/item/746f352ab97c5e315343c10d.jpg" border=0 small="0"></div> </a><br><br>鎴戜滑鍙互鐪嬪埌,鍦ㄨ繙澶勪竴涓悆,,寰堝ソ鐜╁搱,<br>鐜板湪鎴戜滑灝嗙溂鐫涘啀寮犲紑鐐圭湅,灝?鐪肩潧鐫佸紑鐨勮搴?璁劇疆涓?78<br>(180搴﹁〃紺哄鉤瑙?閭f椂鍊欐垜浠皢浠涔堜篃鐪嬩笉鍒?鐪肩潧鐫佸お澶т簡,鐪煎ぇ鏃犵)<br> <div forimg="1"><img class=blogimg src="http://hiphotos.baidu.com/kkun/pic/item/102f01e9a22b6f36b80e2d17.jpg" border=0 small="0"></div> <br><br>鎴戜滑鍙湅鍒頒竴涓偣,,,,,,,,,,,,,,,,,,,,,,,,,,,<br>鍥犱負鎴戜滑鐪嬬殑鑼冨洿澶ぇ浜?榪欎釜鐞冩湰韜ぇ灝忔病鏈夋敼鍙?浣嗘槸瀹冨湪鎴戜滑鐨?瑙嗙晫"鍐呭お灝忎簡,<br><br><br>鍙嶄箣,鎴戜滑灝嗙溂鐫涢棴灝忎簺,鏀逛負1搴︾湅鐪嬩細鍑虹幇浠涔堟儏鍐靛憿?<br> <div forimg="1"><img class=blogimg src="http://hiphotos.baidu.com/kkun/pic/item/ab45dab464dc607a8bd4b21e.jpg" border=0 small="0"><br><br>鍦ㄦ垜浠窛紱昏鐗╀綋3000璺濈榪?"鐪肩潧鐫佸紑鐨勮搴?涓?鏃?鎴戜滑浼間箮璧拌繘浜嗚繖涓悆鍐?榪欎釜鏄笉鏄被浼間簬鐩告満鐨勭劍璺?<br><br>褰撴垜浠皢"閫忚瑙?璁劇疆涓?鏃?鎴戜滑鐩稿綋浜庨棴涓婂弻鐪?榪欎釜涓栫晫娓呴潤浜?<br><br>鎴戜滑浠涔堜篃鐪嬩笉鍒?,,,,,,,,</div> </div> <br><br><br>鐜板湪鏉ョ湅gluLookAt(GLdoble eyex,GLdouble eyey,GLdouble eyez,GLdouble centerx,GLdouble centery,GLdouble centerz,GLdouble upx,GLdouble upy,GLdouble upz);<br><br>瀹冨叡鎺ュ彈涓夊鍧愭爣,<br>鍒嗗埆涓篹ye,center,up<br>鏁呭悕鎬濅箟,eye琛ㄧず鎴戜滑鐪肩潧鍦?涓栫晫鍧愭爣緋?涓殑浣嶇疆,<br>center琛ㄧず鐪肩潧"鐪?鐨勯偅涓偣鐨勫潗鏍?<br>鏈鍚庨偅涓猽p鍧愭爣琛ㄧず瑙傚療鑰呮湰韜殑鏂瑰悜,濡傛灉灝嗚瀵熺偣姣斿柣鎴愭垜浠殑鐪肩潧,閭d箞榪欎釜up鍒欒〃紺烘垜浠槸姝g珛榪樻槸鍊掔珛寮傛垨鏌愪竴涓搴﹀湪鐪?鎵鐪嬬殑褰卞儚澶т笉鐩稿悓,鏁呮鏃墮渶瑕佹寚鏄庢垜浠幇鍦ㄦ绔?閭d箞X,Z杞翠負0,Y杞翠負姝e嵆鍙?閫氬父灝嗗叾璁劇疆涓?,鍙琛ㄧず涓涓悜涓婄殑鍚戦噺(鏂瑰悜)鍗沖彲<br>鐞冩槸鐢誨湪涓栫晫鍧愭爣緋葷殑鍘熺偣涓婄殑,鍗砄(0,0,0)鍧愭爣涓?鎴戜滑鐨勭溂鐫涗綅浜庤瀵熺偣A(0,0,100),Z杞村悜灞忓箷閲岀湅鍘葷殑鏂瑰悜涓鴻礋,灞忓箷澶栨垜浠殑浣嶇疆,Z杞翠負姝e?鍏跺疄寰堝ソ鐞嗚В,鍗蟲垜浠窛紱誨師鐐圭殑璺濈,璁劇疆100,灝嗚瀵熷埌濡備笅鍥炬墍紺虹殑褰卞儚<br><a target=_blank> <div forimg="1"><img class=blogimg src="http://hiphotos.baidu.com/kkun/pic/item/746f352ab97c5e315343c10d.jpg" border=0 small="0"></div> </a><br>濡傛灉鎴戜滑鍚戝墠鎴栧悜鍚庣Щ鍔?鍒欑浉搴旂殑鍥懼儚浼氬彉澶ф垨鍙樺皬,榪欓噷鍏跺疄灝辨槸榪愮敤浜嗛忚鍘熺悊,榪戝鐨勭墿浣撳ぇ,榪滃鐨勭墿浣撳皬,瀹為檯鐗╀綋鐨勫ぇ灝忔槸涓嶅彉鐨?<br><br>鍚岀悊鏀瑰彉center鍧愭爣(鐪肩潧鐪嬪幓鐨勯偅涓偣,鍙畝鍗曠悊瑙d負瑙嗙嚎鐨勭粓鐐?涔熶細褰卞搷鐞冪殑澶у皬,鍚屾牱鍙互璁や負鏄敼鍙樹簡鐗╀綋涓庤瀵熺偣鐨勮窛紱繪墍鑷?<br><br>鏈鍚庨偅涓猽p鍧愭爣琛ㄧず瑙傚療鑰呮湰韜殑鏂瑰悜,濡傛灉灝嗚瀵熺偣姣斿柣鎴愭垜浠殑鐪肩潧,閭d箞榪欎釜up鍒欒〃紺烘垜浠槸姝g珛榪樻槸鍊掔珛寮傛垨鏌愪竴涓搴﹀湪鐪?鎵鐪嬬殑褰卞儚澶т笉鐩稿悓,鏁呮鏃墮渶瑕佹寚鏄庢垜浠幇鍦ㄦ绔?閭d箞X,Z杞翠負0,Y杞翠負姝e嵆鍙?閫氬父灝嗗叾璁劇疆涓?,鍙琛ㄧず涓涓悜涓婄殑鍚戦噺(鏂瑰悜)鍗沖彲,鎴戜滑鎸囧畾0.1f鎴?.00001f寮傛垨1000.0f,鏁堟灉鏄竴鏍風殑,鍙鑳借〃紺烘柟鍚戝嵆鍙?<br><br><br><br><br>浠ヤ笂鐞嗚В浜嗕箣鍚?鏉ュ仛涓涓祴璇?br>閫忚鍥句笉鍙?鏈榪滃浠嶄負3000,榪戝涓?.1<br><br><em>gluPerspective                            // 璁劇疆閫忚鍥?br>        (45,                            // 閫忚瑙掕緗負 45 搴?鍦╕鏂瑰悜涓婁互瑙掑害涓哄崟浣嶇殑瑙嗛噹<br>        (GLfloat)x/(GLfloat)y,    // 紿楀彛鐨勫涓庨珮姣?br>        0.1f,                                // 瑙嗛噹閫忚娣卞害:榪戠偣1.0f<br>        3000.0f                            // 瑙嗛噹閫忚娣卞害:濮嬬偣0.1f榪滅偣1000.0f<br>        );</em><br><br>灝嗘垜浠殑瑙傚療鐐圭疆浜嶢(0,10,0),<br>灝嗚瀵熶綅緗?瑙嗙嚎緇堢偣)鍧愭爣緗簬(0,0,0)<br>鐒跺悗鍦ㄥ師鐐瑰紑濮嬬粯鍥?鐢諱竴涓猇瀛楀艦,騫跺皢Z杞寸殑鍊間粠-1000閫掑鍔犲埌+1000,澧為噺涓?0,<br>浠g爜濡備笅<br><em><br>    glColor3f(0.5f, 0.7f, 1.0f);<br><br>    glBegin(GL_LINES);<br>        for(int i=-1000;i<=1000;i+=10)<br>        {<br>            glVertex3f(0,0,i);<br>            glVertex3f(10,10,i);<br><br>            glVertex3f(0,0,i);<br>            glVertex3f(-10,10,i);<br>        }<br>    glEnd();<br></em><br>F5榪愯鏁堟灉濡備笅鍥?br> <div forimg="1"><img class=blogimg src="http://hiphotos.baidu.com/kkun/pic/item/f1be800ad3acf337b1351dd9.jpg" border=0 small="0"><br><br>涓婂浘璇佸疄浜嗘垜浠殑鎺ㄦ祴</div> <br><br><br><br><br><br><br><br><br><br><br>//---------------------------------------------<br>    //鐢熸垚緗戠粶<br>    glColor3f(0.5f, 0.7f, 1.0f);<br>    int x=(int)(40*2);<br>    <br>    glBegin(GL_LINES);<br>            for(int i=-x;i<=x;i+=4)<br>            {<br>                glVertex3i(-x,0,i);<br>                glVertex3i(x,0,i);<br><br>                glVertex3i(i,0,x);<br>                glVertex3i(i,0,-x);<br>            }<br>    glEnd();<br><br>//鐢熸垚鐞冧綋<br>    GLUquadricObj * pObj;<br>    pObj = gluNewQuadric();<br>    gluQuadricDrawStyle(pObj,GLU_LINE);<br>    gluQuadricNormals(pObj,GLU_SMOOTH);<br><br>=============================================================<br>浠ヤ笅鏄釜灝忔葷粨錛?br>1銆佹ā瑙嗙煩闃碉紙ModelView Matrix錛夌殑浣滅敤鏄皢妯″瀷浠庡眬閮ㄥ潗鏍囩郴鍙樻崲鍒頒笘鐣屽潗鏍囩郴錛屽茍鏈緇堝彉鎹㈠埌瑙嗙偣鍧愭爣緋諱腑銆傚畠鐢辨ā鍨嬪彉鎹㈢煩闃靛拰瑙嗙偣鍙樻崲鐭╅樀緇勬垚銆?br>2銆乬luLookAt褰卞搷鐨勬槸瑙嗙偣鐭╅樀錛屽畠鏄懼紡鐨勬爣鏄庝簡瑙嗙偣鍧愭爣緋諱笌涓栫晫鍧愭爣緋葷殑鍏崇郴錛屽嵆瑙嗙偣琚畨緗湪涓栫晫鍧愭爣緋葷殑鍝釜浣嶇疆錛岃綰跨殑鏂瑰悜鏈濆悜浣曞銆?br>3銆乬luPerspective鐢ㄤ簬瑙勫畾瑙嗘櫙浣撹寖鍥達紝涓庢ā瑙嗙煩闃墊棤鍏籌紝瀹冨獎鍝嶇殑鏄姇褰辯煩闃靛拰瑙勪竴鍖栫煩闃點傛姇褰辯煩闃電殑浣滅敤鏄嬌妯″瀷浜х敓榪戝ぇ榪滃皬鐨勬晥鏋滐紝瑙勪竴鍖栫煩闃墊槸灝嗘ā鍨嬬殑z鍊艱涓鍖栧埌0~1涔嬮棿銆?br>4銆佸湪緙栫▼鐨勬椂鍊欙紝闇瑕乬lMatrixMode鏉ユ寚瀹氱煩闃靛爢鏍堢殑綾誨瀷錛岀劧鍚庡璇ョ煩闃佃繘琛屼慨鏀廣?br>   glMatrixMode(GL_MODELVIEW);<br>   glLoadIdentity();<br>   鐨勪綔鐢ㄦ槸鍒濆鍖栨ā瑙嗙煩闃碉紝灝嗗潗鏍囧師鐐歸噸鏂拌緗湪涓栫晫鍧愭爣緋葷殑鍘熺偣銆備箣鍚庣殑glTranslate銆乬lScale銆乬lRotate閮戒細鏀瑰彉妯¤鐭╅樀涓殑妯″瀷鍙樻崲鐭╅樀銆傝実lLookAt鍒欒緗鐐瑰彉鎹㈢煩闃點傚畠浠叡鍚屼綔鐢紝浣垮緱妯″瀷鑳藉湪涓栫晫鍧愭爣緋諱腑姝g‘瀹夋斁錛屽茍鑳戒粠鍚堥傜殑瑙掑害鍘昏瀵熴?br><br></div> <img src ="http://m.shnenglu.com/percyph/aggbug/78537.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/percyph/" target="_blank">灝忚櫕铏?/a> 2009-04-01 11:03 <a href="http://m.shnenglu.com/percyph/archive/2009/04/01/78537.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>鍏充簬鍒濆鍖栧垪琛ㄧ殑鍒濆鍖栭『搴?/title><link>http://m.shnenglu.com/percyph/archive/2009/03/31/78444.html</link><dc:creator>灝忚櫕铏?/dc:creator><author>灝忚櫕铏?/author><pubDate>Tue, 31 Mar 2009 02:33:00 GMT</pubDate><guid>http://m.shnenglu.com/percyph/archive/2009/03/31/78444.html</guid><wfw:comment>http://m.shnenglu.com/percyph/comments/78444.html</wfw:comment><comments>http://m.shnenglu.com/percyph/archive/2009/03/31/78444.html#Feedback</comments><slash:comments>2</slash:comments><wfw:commentRss>http://m.shnenglu.com/percyph/comments/commentRss/78444.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/percyph/services/trackbacks/78444.html</trackback:ping><description><![CDATA[      涓涓猇ector妯℃澘綾?寮濮嬬殑鏃跺欐槸榪欐牱鍐欑殑錛?br>template <class T><br>class Vector<br>{<br>public:<br>    Vector(unsigned n=8):_size(n),_data(new T[_size]){}<br>   //.........<br>protected:<br>    T*       _data;<br>    unsigned _size;<br>};<br>緇撴灉涓榪愯錛屾満瀛愬氨鎱簡錛屾墦寮浠誨姟綆$悊鍣紝鍗犲唴瀛樿秴澶с傚悗鏉ユ兂璧鋒潵鍒濆鍖栧垪琛ㄦ槸鎸夌収鎴愬憳鍙橀噺鐨勫0鏄庨『搴忓垵濮嬪寲鐨勶紝鎵浠ュ湪鏋勯犲嚱鏁伴噷_data鏁扮粍鍏堣鍒濆鍖栵紝榪欐椂_size娌¤鍒濆鍖栵紝鍗砡size榪樻槸涓殢鏈哄鹼紝浼拌闅忔満鐨勫緢澶э紝鍛靛懙錛屾瘮鏂硅_size涓?234567錛屼簬鏄氨鐢寵浜?234567鐨勫唴瀛樸傘傘傘?br>浜庢槸淇敼濡備笅灝監K浜嗭細<br>template <class T><br>class Vector<br>{<br>public:<br>    Vector(unsigned n=8):_size(n),_data(new T[_size]){}<br>   //.........<br>protected:<br>    unsigned _size;//鍏堝0鏄巁size錛屽厛鍒濆鍖栧畠<br>    T*       _data;<br>}; <img src ="http://m.shnenglu.com/percyph/aggbug/78444.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/percyph/" target="_blank">灝忚櫕铏?/a> 2009-03-31 10:33 <a href="http://m.shnenglu.com/percyph/archive/2009/03/31/78444.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>紕板埌鍛藉悕絀洪棿鐨勯棶棰?/title><link>http://m.shnenglu.com/percyph/archive/2009/03/31/78442.html</link><dc:creator>灝忚櫕铏?/dc:creator><author>灝忚櫕铏?/author><pubDate>Tue, 31 Mar 2009 02:25:00 GMT</pubDate><guid>http://m.shnenglu.com/percyph/archive/2009/03/31/78442.html</guid><wfw:comment>http://m.shnenglu.com/percyph/comments/78442.html</wfw:comment><comments>http://m.shnenglu.com/percyph/archive/2009/03/31/78442.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://m.shnenglu.com/percyph/comments/commentRss/78442.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/percyph/services/trackbacks/78442.html</trackback:ping><description><![CDATA[       鏄ㄥぉ鍐欎釜綾伙紝紕板埌涓棶棰橈紝鎴戣繖閲岀敤綆鍗曠殑渚嬪瓙璇存槑錛屾瘮鏂硅鍐欎釜瀛︾敓綾伙紝鎬у埆鐢ㄦ灇涓炬潵琛ㄧず錛岀劧鍚庢湁涓幏寰楁у埆鐨勫嚱鏁癎etGender(),榪斿洖鍊肩被鍨嬩負Gender銆?br>class Student<br>{<br>enum Gender{MALE,FEMALE};<br>//...<br>Gender GetGender();<br>};<br>鍑芥暟鐨勫疄鐜板涓?br>Gender Student::GetGender<br>{//...<br>}<br>緇撴灉鍑洪敊銆傛劅瑙夋尯鑾悕鍏跺鐨勶紝鍛靛懙銆傚悗鏉ヤ竴鐞㈢(錛屾敼鎴愪簡<br>Student::Gender Student::GetGender<br>{//...<br>}<br>鎴愬姛錛侊紒錛侊紒榪欎釜鍐欐硶鏈夋剰鎬?^_^     <img src ="http://m.shnenglu.com/percyph/aggbug/78442.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/percyph/" target="_blank">灝忚櫕铏?/a> 2009-03-31 10:25 <a href="http://m.shnenglu.com/percyph/archive/2009/03/31/78442.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>璧勬枡鍒嗕韓澹版槑http://m.shnenglu.com/percyph/archive/2009/03/06/75763.html灝忚櫕铏?/dc:creator>灝忚櫕铏?/author>Fri, 06 Mar 2009 10:32:00 GMThttp://m.shnenglu.com/percyph/archive/2009/03/06/75763.htmlhttp://m.shnenglu.com/percyph/comments/75763.htmlhttp://m.shnenglu.com/percyph/archive/2009/03/06/75763.html#Feedback4http://m.shnenglu.com/percyph/comments/commentRss/75763.htmlhttp://m.shnenglu.com/percyph/services/trackbacks/75763.html璐﹀彿錛歱ercyph1@163.com
瀵嗙爜錛歺cc123456
濡傛灉澶у鏈塩++錛宱penGL錛屽瘑鐮佸絳夌瓑璁$畻鏈烘柟闈㈢殑濂借祫鏂欙紝涔熷彲浠ュ彂緇欐垜錛屾垜鐨勯偖綆辨槸 percyph@163.com
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3.11鍙蜂笂浼狅紙kuafoo鍙戠殑錛?/span>
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struct鍜宼ypedef struct http://m.shnenglu.com/percyph/archive/2009/03/06/75742.html灝忚櫕铏?/dc:creator>灝忚櫕铏?/author>Fri, 06 Mar 2009 06:20:00 GMThttp://m.shnenglu.com/percyph/archive/2009/03/06/75742.htmlhttp://m.shnenglu.com/percyph/comments/75742.htmlhttp://m.shnenglu.com/percyph/archive/2009/03/06/75742.html#Feedback20http://m.shnenglu.com/percyph/comments/commentRss/75742.htmlhttp://m.shnenglu.com/percyph/services/trackbacks/75742.html1 棣栧厛錛?/span>
      鍦–涓畾涔変竴涓粨鏋勪綋綾誨瀷瑕佺敤typedef:
        typedef struct Student
        {
            int a;
        }Stu;
浜庢槸鍦ㄥ0鏄庡彉閲忕殑鏃跺欏氨鍙細Stu stu1;
濡傛灉娌℃湁typedef灝卞繀欏葷敤struct Student stu1;鏉ュ0鏄?br>榪欓噷鐨凷tu瀹為檯涓婂氨鏄痵truct Student鐨勫埆鍚嶃?br>鍙﹀榪欓噷涔熷彲浠ヤ笉鍐橲tudent錛堜簬鏄篃涓嶈兘struct Student stu1;浜嗭級
        typedef struct
        {
            int a;
        }Stu;
浣嗗湪c++閲屽緢綆鍗曪紝鐩存帴
        struct Student
        {
           int a;
        };
浜庢槸灝卞畾涔変簡緇撴瀯浣撶被鍨婼tudent錛屽0鏄庡彉閲忔椂鐩存帴Student stu2錛?br>===========================================
2鍏舵錛?/span>
鍦╟++涓鏋滅敤typedef鐨勮瘽錛屽張浼氶犳垚鍖哄埆錛?br>       struct   Student  
       {  
          int   a;  
       }stu1;//stu1鏄竴涓彉閲?nbsp; 
       typedef   struct   Student2  
       {  
          int   a;  
        }stu2;//stu2鏄竴涓粨鏋勪綋綾誨瀷  
浣跨敤鏃跺彲浠ョ洿鎺ヨ闂畇tu1.a
浣嗘槸stu2鍒欏繀欏誨厛   stu2 s2;
鐒跺悗               s2.a=10;
===========================================
3 鎺屾彙涓婇潰涓ゆ潯灝卞彲浠ヤ簡錛屼笉榪囨渶鍚庢垜浠帰璁ㄤ釜娌″澶у叧緋葷殑闂
濡傛灉鍦╟紼嬪簭涓垜浠啓錛?br>       typedef struct  
       {
           int num;
           int age;
       }aaa,bbb,ccc;
榪欑畻浠涔堝憿錛?br>鎴戜釜浜鴻瀵熺紪璇戝櫒錛圴C6錛夌殑鐞嗚В錛岃繖鐩稿綋浜?br>       typedef struct  
       {
           int num;
           int age;
       }aaa錛?br>       typedef aaa bbb;
       typedef aaa ccc;
涔熷氨鏄aaa,bbb,ccc涓夎呴兘鏄粨鏋勪綋綾誨瀷銆傚0鏄庡彉閲忔椂鐢ㄤ換浣曚竴涓兘鍙互,鍦╟++涓篃鏄姝ゃ備絾鏄綘瑕佹敞鎰忕殑鏄繖涓湪c++涓鏋滃啓鎺変簡typedef鍏抽敭瀛楋紝閭d箞aaa錛宐bb錛宑cc灝嗘槸鎴劧涓嶅悓鐨勪笁涓璞°?img src ="http://m.shnenglu.com/percyph/aggbug/75742.html" width = "1" height = "1" />

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錛堣漿錛塯lut鍑芥暟璇﹁В(13)--瑙嗛澶у皬璋冩暣APIhttp://m.shnenglu.com/percyph/archive/2009/03/03/75427.html灝忚櫕铏?/dc:creator>灝忚櫕铏?/author>Tue, 03 Mar 2009 07:41:00 GMThttp://m.shnenglu.com/percyph/archive/2009/03/03/75427.htmlhttp://m.shnenglu.com/percyph/comments/75427.htmlhttp://m.shnenglu.com/percyph/archive/2009/03/03/75427.html#Feedback0http://m.shnenglu.com/percyph/comments/commentRss/75427.htmlhttp://m.shnenglu.com/percyph/services/trackbacks/75427.html闃挎澃錛嶏紞姹熷崡鏆栧啲
int glutVideoResizeGet(GLenum param);
榪斿洖glut瑙嗛澶у皬璋冩暣鐨勪俊鎭?
鍙傛暟:
param:
  GLUT_VIDEO_RESIZE_POSSIBLE:濡傛灉搴曞眰鏀寔瑙嗛澶у皬璋冩暣,鍒欒繑鍥為潪0鍊?鍚﹀垯榪斿洖0.濡傛灉榪斿洖0,鍒欏叾浠栬棰戝ぇ灝忚皟鏁村嚱鏁扮殑璋冪敤灝嗕笉璧蜂綔鐢?
  GLUT_VIDEO_RESIZE_IN_USE
  GLUT_VIDEO_RESIZE_X_DELTA
  GLUT_VIDEO_RESIZE_Y_DELTA
  GLUT_VIDEO_RESIZE_WIDTH_DELTA
  GLUT_VIDEO_RESIZE_HEIGHT_DELTA
  GLUT_VIDEO_RESIZE_X
  GLUT_VIDEO_RESIZE_Y
  GLUT_VIDEO_RESIZE_WIDTH
  GLUT_VIDEO_RESIZE_HEIGHT
 
鍚庨潰鍑犱釜甯擱噺鍊煎湪緗戜笂娌℃湁鎼滃埌瑙i噴.

//*******************************************************************************************
void glutSetupVideoResizing(void);
 
void glutStopVideoResizing(void);
 
void glutVideoResize(int x, int y, int width, int height);
 
void glutVideoPan(int x, int y, int width, int height);

鎴戞妸glut鐨勫ご鏂囦歡涓殑鎵鏈夊嚱鏁伴兘鏁寸悊浜嗕竴閬?鍙彲鎯?video resize sub-API涓殑鍑犱釜鍑芥暟緗戜笂閮芥病鏈夊叿浣撶殑浠嬬粛,鏈彍楦熶篃鏃犺兘涓哄姏,騫稿ソ榪欎簺鍑芥暟閮戒笉鏄父鐢ㄧ殑,鎴戞兂涓鑸敤涓嶇潃.闄や簡鍜岃棰戞湁鍏崇殑API,鍓嶉潰鍑犱釜甯栧瓙鐨勫唴瀹瑰凡緇忓熀鏈妸glut鐨勬墍鏈夊嚱鏁伴兘榪囦簡涓閬?鏈笓棰樹篃灝辯畻鏄畬鎴愪簡,浠ュ悗濡傛灉鎵懼埌鐩稿叧璧勬枡,浼氭妸榪欓噷鐨勮ˉ涓?涔熷笇鏈涜揪浜鴻兘澶熸寚鐐逛竴浜?

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錛堣漿錛塯lut鍑芥暟璇﹁В(12)--娓告垙妯″紡APIhttp://m.shnenglu.com/percyph/archive/2009/03/03/75426.html灝忚櫕铏?/dc:creator>灝忚櫕铏?/author>Tue, 03 Mar 2009 07:38:00 GMThttp://m.shnenglu.com/percyph/archive/2009/03/03/75426.htmlhttp://m.shnenglu.com/percyph/comments/75426.htmlhttp://m.shnenglu.com/percyph/archive/2009/03/03/75426.html#Feedback0http://m.shnenglu.com/percyph/comments/commentRss/75426.htmlhttp://m.shnenglu.com/percyph/services/trackbacks/75426.html 
//*******************************************************************************************
void glutGameModeString(const char *string);
閫氳繃涓涓瓧絎︿覆瀵筭ame mode(娓告垙妯″紡,涔熷嵆鍏ㄥ睆妯″紡)榪涜璁劇疆,鍗沖灞忓箷榪涜璁劇疆.
鍙傛暟:
string:涓涓寚鍚戝瓧絎︿覆鐨勬寚閽?瀛楃涓茬殑鍐呭鍗蟲槸瀵瑰睆騫曠殑璁劇疆.瀛楃涓茬殑鏍煎紡濡備笅鎵紺?
  "W*H"
  "W*H:Bpp"
  "W*H@Rr"
  "W*H:Bpp@Rr"
  "@Rr"
  ":Bpp"
  "Bpp:@Rr"
(娉?W:灞忓箷瀹藉害,浠ュ儚绱犲崟浣?H:灞忓箷楂樺害,浠ュ儚绱犱負鍗曚綅;Bpp:姣忎釜鍍忕礌鐨勫唴瀛樺ぇ灝?浣嶆暟);Rr:灞忓箷鐨勫埛鏂扮巼.)
渚嬪瓙:
1.濡傛灉鎴戜滑鍙叧蹇冨睆騫曞ぇ灝?800*600)鑰屼笉鍏沖績姣忎釜鍍忕礌鐨勫唴瀛樺崰鐢ㄥ拰鍒鋒柊棰戠巼,鍙互鍐欐垚:
    glutGameModeString("800*600");
2.濡傛灉鍙兂鎶婃瘡涓儚绱犵殑鍐呭瓨鍗犵敤璁劇疆鎴?2浣?鍙互鍐欐垚:
    glutGameModeString(":32");
3.濡傛灉鍙兂鎶婂埛鏂扮巼璁劇疆鎴?5璧吂,鍙互鍐欐垚:
    glutGameModeString("@75");
4.濡傛灉鍓嶄笁縐嶆儏鍐甸兘鑰冭檻,鍙互鍐欐垚:
    glutGameModeString("800*600:32@75");
鍏朵粬鎯呭喌鎸夌収涓婇潰緇欏嚭鐨勫瓧絎︿覆鏍煎紡鍐欏嚭鍗沖彲.
娉?
  1.榪欎釜鍑芥暟鍙槸瀵圭‖浠剁殑璇鋒眰,濡傛灉璁劇疆涓嶅悎娉?鍒欏皢琚拷鐣?
  2.榪欎釜鍑芥暟騫朵笉榪斿洖閿欒鍊?濡傛灉瑕佽幏寰楅敊璇俊鎭?鍒欒鐢╣lutGameModeGet()鍑芥暟.

//*******************************************************************************************
int glutEnterGameMode(void);

榪涘叆鐩稿簲鐨刧ame mode,鍗寵glutGameModeString()鐨勮緗敓鏁?

//*******************************************************************************************
void glutLeaveGameMode(void);

紱誨紑glutGameModeString()璁劇疆鐨刧ame mode.

//*******************************************************************************************

int glutGameModeGet(GLenum mode);

媯嫻嬭緗殑妯″紡鏄惁鏈夋晥

鍙傛暟:
mode:
  GLUT_GAME_MODE_ACTIVE:濡傛灉紼嬪簭榪愯鍦╣ame mode,鍒欒繑鍥為潪0鍊?濡傛灉榪愯鍦ㄧ獥鍙fā寮?鍒欒繑鍥?.
  GLUT_GAME_MODE_POSSIBLE:鍒ゆ柇glutAameModeString()鐨勮緗槸鍚︽湁鏁?濡傛灉鏈夋晥鍒欒繑鍥為潪0鍊?鍚﹀垯榪斿洖0.浣嗘槸glut鎵嬪唽涓湁涓涓鍛?鍗充嬌榪欎釜璁劇疆鏄湁鏁堢殑,涔熶笉鑳戒繚璇佸睆騫曡緗彲浠ヤ竴瀹氭垚鍔熺敓鏁?
  GLUT_GAME_MODE_WIDTH:榪斿洖灞忓箷鐨勫搴?
  GLUT_GAME_MODE_HEIGHT:榪斿洖灞忓箷鐨勯珮搴?
  GLUT_GAME_MODE_PIXEL_DEPTH:榪斿洖褰撳墠妯″紡涓嬫瘡涓儚绱犳墍鍗犵敤鐨勫唴瀛樼┖闂?浣嶆暟).
  GLUT_GAME_MODE_REFRESH_RATE:榪斿洖瀹為檯鐨勫埛鏂扮巼(鍗曚綅璧吂).
  GLUT_GAME_MODE_DISPLAY_CHANGED:姝e鍓嶉潰鎵璇?涓嶈兘淇濊瘉灞忓箷鏄劇ず妯″紡涓瀹氭牴鎹緗彂鐢熸敼鍙?榪欎釜甯擱噺鍙互鐢ㄦ潵嫻嬭瘯鏄惁鐪熺殑榪涘叆浜唃ame mode(鍏堝墠鏄獥鍙fā寮忎笅鐨勬儏鍐典笅),濡傛灉鍏堝墠宸茬粡鏄痝ame mode,鍒欏彲浠ョ敤鏉ユ祴璇曡緗槸鍚﹀彂鐢熸敼鍙?榪斿洖闈?鍊艱〃紺鴻繘鍏ヤ簡game mode鎴栬緗凡緇忓彂鐢熸敼鍙?鍚﹀垯榪斿洖0.


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