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 1¡¢ÓзûºÅ±äÁ¿ÓëÎÞ·ûºÅ±äÁ¿ÖµµÄ±ä»»
  ½«ÓзûºÅ±äÁ¿×ª»»ÎªÎÞ·ûºÅ±äÁ¿£¬×¢Ò⸺ÊýµÄת»»¡£
2¡¢ÊýÖµµÄ½»»»
  //ʹÓÃÁÙʱ±äÁ¿
   void Swap1(int &a, int &b)
  {
      int temp = a;
      a = b;
      b = temp;
  }
  //ʹÓÃËãÊõÔËË㣬Ò×·¢ÉúÊý¾ÝµÄÒç³ö
  void Swap2(int &a, int &b)
  {
     a = a + b;
     b = a - b;
     a = a - b;
   }
  //ʹÓÃλÔËËã·û
  void Swap3(int &a, int &b)
 {
    a ^= b;
    b ^= a;
    a ^= b;
 }
3¡¢¹ØÓÚÍ·ÎļþµÄ½á¹¹µÄÀí½â
1   #ifndef _INCvxWorksh
2   #define _INCvxWorksh
3   #ifdef _Cplusplus
4   extern "C" {
5   #endif 
6  
7   #ifdef _cplusplus
8   }
9   #endif
10  #endif
µÚ1¡¢2¡¢10ÐеÄ×÷ÓÃÊÇ·ÀֹͷÎļþ±»Öظ´ÒýÓá£
´úÂëµÚ3ÐеÄ×÷ÓÃÊDZíʾµ±Ç°Ê¹ÓõÄÊÇC++±àÒëÆ÷
µÚ4-8ÐÐÖеÄextern “C”ÊÇc++±àÒëÆ÷ÌṩµÄÓëCÁ¬½Ó½»»»Ö¸¶¨µÄ·ûºÅ£¬ÓÃÀ´½â¾öÃû×ÖÆ¥ÅäÎÊÌâ¡£
extern “C”°üº¬Ë«Öغ¬Ò壺
£¨1£©±»ËüÐÞÊεÄÄ¿±êÊÇ"extern"µÄ¡£Ò²¾ÍÊǸæËß±àÒëÆ÷£¬ÆäÉùÃ÷µÄº¯ÊýºÍ±äÁ¿¿ÉÒÔÔÚ±¾Ä£¿é»òÆäËûÄ£¿é×ÜʹÓá£Í¨³££¬ÔÚÄ£¿éµÄÍ·ÎļþÖжԱ¾Ä£¿é¹©¸øÆäËûÄ£¿éÒýÓõĺ¯ÊýºÍÈ«¾Ö±äÁ¿ÒԹؼü×ÖexternÉùÃ÷
£¨2£©±»ËüÐÞÊεÄÄ¿±êÊÇ"C"µÄ£¬Òâ˼ÊÇÆäÐÞÊεıäÁ¿ºÍº¯ÊýÊǰ´ÕÕCÓïÑԵķ½Ê½±àÒëºÍÁ´½ÓµÄ¡£
4¡¢Mainº¯ÊýÖ®ºóµÄµ÷ÓÃ
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int main()
{
const int a = 5;
int b[a];
return 0;
}
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