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void itoa(int n,char s[])
{
int i,sign;
if ((sign=n) <0)
n=-n;
i=0;
do {
s[i++]=n%10+'0';}
while ((n/=10)>0);
if (sign <0)
s[i++]='-';
s[i]='\0';
reverse(s);
}


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1---->  1+'0'-->'1'.
2---->  2+'0'-->'2'.
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int i,sign;
if ((sign=n) <0)//ÉèÖÃÒ»¸ö±êÖ¾£¬¿´¿´n ÊDz»ÊǸºÊý
n=-n;  //Èç¹ûÊǸºÊý£¬ÏÈתÕý
i=0;//³õʼÄǸö×Ö·ûÊý×éµÄµÚһλ¡£
do {
s[i++]=n%10+'0';//°Ñ¶ÔÓÚµÄÊý×Öת»¯Îª×Ö·û¡£¾ßÌåÄã¡®0¡¯µÄÖµ£¬Äã¿ÉÒÔ²é²éAISC11Âë¡£
}while ((n/=10)>0);//ÒÆÎ»£¬¸ßλÏòµÍÎ»ÒÆ¶¯£¬È磺ÓÉÍòλµ½¸÷λ


if (sign <0)//Èç¹ûÕâ¸ö±êÖ¾ÏÔʾËûÊǸºÊ


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struct BBB
{
long num£»
char *name;
short int data;
char ha;
short ba[5];
}*p;
p=0x1000000;
p+0x200=____;
(Ulong)p+0x200=____;
(char*)p+0x200=____;
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test.c
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