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ÏÂÃæÊÇÖ÷º¯ÊýµÄ´úÂ룬ÁíÍ⣬A .BÊÇÎÒ¶¨ÒåµÄÁ½¸öÀ࣬·Ö±ðº¬ÓÐÊý¾Ý³ÉÔ±ma,mbºÍmc,
ÎÒÓÐÒÉ»óµÄµØ·½¾ÍÔÚÓÚÓÃprintfÊä³öºÍÎÒ×¢Ê͵ôµÄµØ·½£¬ÎÒÒª²é¿´µÄÊÇÊý¾Ý³ÉÔ±µÄÆ«ÒÆÁ¿£¬ÎªÊ²Ã´ÓÃcout(×¢Ê͵ôµÄµØ·½)ûÓÐÈκÎÊä³ö£¬µ«ÊÇÓÃprintfÈ´¿ÉÒÔÕýÈ·Êä³öÄØ£¬²»Àí½â£¬ÇóÖ¸½Ì¡£¡£

int main()
{
  A a;
  B *pb=(B*)(&a);
  cout<<"&a:"<<&a<<endl;
  cout<<"&a.ma"<<&a.ma<<endl;
  printf("%p\n",&A::ma);
   printf("%p\n",&A::mb);
    printf("%p\n",&B::mc);

/*  
  cout<<"&A::ma"<<&A::ma<<endl;
  cout<<"&A::mb"<<&A::mb<<endl;
  cout<<"&B::mc"<<&B::mc<<endl; */
  pb->print();
}
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rbs

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ÎÒ°®Ð¡³æ×Ó: ½ð±Ò+7, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ·Ç³£¸Ðл£¬Àí½âÁË 2014-04-01 19:01:57
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µÚ¶þ£º&A::maʵ¼ÊÉÏÊÇÒ»¸öÖ¸Ïò³ÉÔ±µÄÖ¸ÕëÀàÐÍ£¬¶ø²»ÊÇÒ»¸öÆÕָͨÕëÀàÐÍ¡£Èç¹ûÄãʹÓÃVS2010±àÒëÆ÷µÄ»°£¬Ð´³Écout<<(int)(&A::ma)<<endl¼´¿É£¬±àÒëÆ÷¾Í»á¸æËßÄã:
error C2440: ¡°ÀàÐÍת»»¡±: ÎÞ·¨´Ó¡°int A::* ¡±×ª»»Îª¡°int¡±
µ«ÊÇÈç¹ûÄãÓÃgcc4.9.8×öÀàÐÍת»»¾Í²»»á±¨´í£¬¶øÇÒ»áÊä³öÄãÏëÒªµÄ½á¹û£¬Ò²¾ÍÊÇÆ«ÒÆÁ¿¡£±àÒëÆ÷ÓÐÇø±ðÔ­ÒòÎÒÖ»Äܲ²âÎªÖÆÔìÕßµÄÒòËØ£¬¶ø·ÇC++±ê×¼µÄÒòËØ¡£
ËùÒÔ£¬ÄãÔÚ5Â¥µÄ˵·¨ÊDz»¶ÔµÄ£¬ÒòΪcoutÊÇûÓÐÕë¶Ô³ÉÔ±Ö¸Õë½øÐÐÖØÔØµÄ¡£Òò´Ë¶ÔÓÚcout<<&A::maÕâÑùµÄ´úÂ룬±àÒëÆ÷Ö»ºÃ½«&A::maת»»³ÉÆäÄܹ»Æ¥ÅäµÄÀàÐÍ¡£³ÉÔ±Ö¸ÕëÀàÐͽ«±»×ª»¯ÎªboolÐÍ£¬ÇÒ·Ç¿ÕÖ¸Õ루¿ÕÖ¸Õë²»ÊÇÖ¸Ïò0λÖõÄÖ¸Õ룬¶øÊDz»Ö¸ÏòÈκÎλÖõÄÖ¸Õ룩¶¼½«±»×ªÎªtrue£¬¶øÓÃcoutÊä³ötrue×ÔÈ»¾ÍÊÇ1¡£¹ØÓÚ³ÉÔ±Ö¸ÕëÏòboolת»»£¬ÎÞÂÛC++98±ê×¼£¬»¹ÊÇ11±ê×¼£¬4.10½Ú¶¼ËµµÄ·Ç³£Çå³þ¡£
8Â¥2014-03-31 22:47:23
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isityou

½ð³æ (СÓÐÃûÆø)

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¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÄÜ·ñ°ÑAд³öÀ´£¬Èç¹û²»¸´Ôӵϰ
2Â¥2014-03-30 23:16:43
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wenguilong

½ð³æ (СÓÐÃûÆø)

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¡ï
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ÎÒ°®Ð¡³æ×Ó: ½ð±Ò+1, ¡ïÓаïÖú, лл 2014-04-01 19:02:29
ÐèÒª×öÊä³ö˵Ã÷°É£¬¾ÍÏñ%pÒ»Ñù
3Â¥2014-03-31 09:13:57
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÎÒ°®Ð¡³æ×Ó

гæ (ÕýʽдÊÖ)

ÒýÓûØÌû:
2Â¥: Originally posted by isityou at 2014-03-30 23:16:43
ÄÜ·ñ°ÑAд³öÀ´£¬Èç¹û²»¸´Ôӵϰ

ºÃµÄ£¬ÏÂÃæÊÇÍêÕû³ÌÐò
#include<iostream>
using namespace std;
class A{
public:
        A(){
     ma=1;
         mb=2;
        }
        ~A(){};
        void print(){cout<<ma<<mb<<endl;}
        int ma,mb;
};

class B{
public:
        B(){mc=3;}
        ~B(){}
        void print(){cout<<mc<<endl;}

        int mc;
};


int main()
{
  A a;
  B *pb=(B*)(&a);
/* cout<<"&a:"<<&a<<endl;
  cout<<"&a.ma"<<&a.ma<<endl;
  printf("%p\n",&A::ma);
   printf("%p\n",&A::mb);
    printf("%p\n",&B::mc); */

  cout<<"&A::ma"<<&A::ma<<endl;
  cout<<"&A::mb"<<&A::mb<<endl;
  cout<<"&B::mc"<<&B::mc<<endl;
  pb->print();
}
лл¹Ø×¢¡£Íû½â´ð
4Â¥2014-03-31 17:58:21
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÎÒ°®Ð¡³æ×Ó

гæ (ÕýʽдÊÖ)

ÒýÓûØÌû:
3Â¥: Originally posted by wenguilong at 2014-03-31 09:13:57
ÐèÒª×öÊä³ö˵Ã÷°É£¬¾ÍÏñ%pÒ»Ñù

cout²»ÊÇÄܹ»×Ô¶¯Ê¶±ðÂð
5Â¥2014-03-31 17:58:46
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

libralibra

ÖÁ×ðľ³æ (ÖøÃûдÊÖ)

æôÆï½«¾ü

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
ÎÒ°®Ð¡³æ×Ó: ½ð±Ò+2, ¡ïÓаïÖú, лл 2014-04-01 19:02:41
static_cast<void*>()À´Ç¿ÖÆ×ª»»Îªvoid *
CODE:
cout << "&A::ma " << static_cast<void*>(&a.ma) << endl;
  cout << "&A::mb " << static_cast<void*>(&a.mb) << endl;
  cout << "&B::mc " << static_cast<void*>(&pb->mc) << endl;

matlab/VB/python/c++/Javaд³ÌÐòÇë·¢QQÓʼþ:790404545@qq.com
6Â¥2014-03-31 18:56:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

wenguilong

½ð³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
5Â¥: Originally posted by ÎÒ°®Ð¡³æ×Ó at 2014-03-31 17:58:46
cout²»ÊÇÄܹ»×Ô¶¯Ê¶±ðÂð...

Â¥ÏÂÒѾ­ËµÁË
7Â¥2014-03-31 21:46:45
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ÎÒ°®Ð¡³æ×Ó

гæ (ÕýʽдÊÖ)

ÒýÓûØÌû:
8Â¥: Originally posted by rbs at 2014-03-31 22:47:23
µÚÒ»£ºÄãµÄÃèÊöÓдíÎó¡£ÓÃcout²»ÊÇûÓÐÈκÎÊä³ö£¬¶øÊÇÓÐÒ»¸ö¡°1¡±µÄÊä³ö
µÚ¶þ£º&A::maʵ¼ÊÉÏÊÇÒ»¸öÖ¸Ïò³ÉÔ±µÄÖ¸ÕëÀàÐÍ£¬¶ø²»ÊÇÒ»¸öÆÕָͨÕëÀàÐÍ¡£Èç¹ûÄãʹÓÃVS2010±àÒëÆ÷µÄ»°£¬Ð´³Écout<<(int)(&A:: ...

´óÉñ£¬ÄúºÃÏñ¿´´íÁ˰¡£¬ÄǸö1²»ÊÇcoutµÄÊä³ö°¡£¬ÄÇÊÇ×îºóµÄÒ»¾äpb--£¾print£¨£©°¡£¡

[ ·¢×ÔÊÖ»ú°æ http://muchong.com/3g ]
9Â¥2014-03-31 23:47:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

rbs

ľ³æ (СÓÐÃûÆø)

ÒýÓûØÌû:
9Â¥: Originally posted by ÎÒ°®Ð¡³æ×Ó at 2014-03-31 23:47:37
´óÉñ£¬ÄúºÃÏñ¿´´íÁ˰¡£¬ÄǸö1²»ÊÇcoutµÄÊä³ö°¡£¬ÄÇÊÇ×îºóµÄÒ»¾äpb--£¾print£¨£©°¡£¡
...

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