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int n; 
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int *p; 
Õâ¸öÓ¦¸Ã±»Àí½âΪ“declare p as an int *”£¨pÊÇÒ»¸öint *Ð͵ıäÁ¿£©£¬»òÕß˵pÊÇÒ»¸öÖ¸ÏòÒ»¸öintÐͱäÁ¿µÄÖ¸Õë¡£ÎÒÏëÔÚÕâÀïÕ¹¿ªÌÖÂÛһϣºÎÒ¾õµÃÔÚÉùÃ÷Ò»¸öÖ¸Õ루»òÒýÓã©ÀàÐ͵ıäÁ¿Ê±£¬×îºÃ½«*£¨»ò&£©Ð´ÔÚ½ô¿¿±äÁ¿Ö®Ç°£¬¶ø²»Êǽô¸ú»ù±¾ÀàÐÍÖ®ºó¡£ÕâÑù¿ÉÒÔ±ÜÃâһЩÀí½âÉϵÄÎóÇø£¬±ÈÈ磺 
int*  p,q; 
µÚÒ»ÑÛ¿´È¥£¬ºÃÏñÊÇpºÍq¶¼ÊÇint*ÀàÐ͵ģ¬µ«ÊÂʵÉÏ£¬Ö»ÓÐpÊÇÒ»¸öÖ¸Õ룬¶øqÊÇÒ»¸ö×î¼òµ¥µÄintÐͱäÁ¿¡£ 
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char **argv; 
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int RollNum[30][4]; 
int (*p)[4]=RollNum; 
int *q[5]; 
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int **p1; // p1 is a pointer  to a pointer  to an int. 
int *&p2; // p2 is a reference to a pointer  to an int. 
int &*p3; // ERROR: Pointer  to a reference is illegal. 
int &&p4; // ERROR: Reference to a reference is illegal.&n


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    for (i=0; i<m; i++)
    {
        a = rand()-rand();
    }
}
int main(int argc, char* argv[])
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