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2011-04-17 08:42:35 ¡¾´ó ÖРС¡¿ ä¯ÀÀ:1162´Î
Tags£º»ªÎª ÓïÑÔ ÊÔÌ⠲ο¼ ´ð°¸
Ò»¡¢ÅжÏÌ⣨¶ÔµÄдT£¬´íµÄдF²¢ËµÃ÷Ô­Òò£¬Ã¿Ð¡Ìâ4·Ö£¬¹²20·Ö£©
1¡¢ÓÐÊý×鶨Òåint a[2][2]={{1},{2,3}};Ôòa[0][1]µÄֵΪ0¡££¨ T £©

2¡¢int (*ptr) (),ÔòptrÊÇһάÊý×éµÄÃû×Ö¡££¨ F £©

3¡¢Ö¸ÕëÔÚÈκÎÇé¿ö϶¼¿É½øÐÐ>, <, >=, <=, = =ÔËËã¡££¨ F £©

4¡¢switch(c) Óï¾äÖÐc¿ÉÒÔÊÇint, long, char, float, unsigned int ÀàÐÍ¡££¨ T £©

5¡¢#define print(x) printf(£¢the no, £¢#x£¢,is £¢) (T)

¶þ¡¢Ìî¿ÕÌ⣨¹²30·Ö£©
1¡¢ÔÚwindowsÏ£¬Ð´³öÔËÐнá¹û£¬Ã¿¿Õ2·Ö£¬¹²10·Ö¡£
char str[ ]= £¢Hello£¢;
char *p=str;
int n=10;
sizeof(str)=( 6 )
sizeof(p)=( 4 )
sizeof(n)=( 4 )
void func(char str[100])
{ }
sizeof(str)=( 4 )

2¡¢void setmemory(char **p, int num)
*p=(char *) malloc(num);
}
void test(void)
char *str=NULL;
getmemory(&str,100);
strcpy(str,£¢hello£¢);
printf(str);
}
ÔËÐÐtestº¯ÊýÓÐʲô½á¹û£¿£¨ hello £©10·Ö

3¡¢Éèint arr[]={6,7,8,9,10};
int *ptr=arr;
*(ptr++)+=123;
printf(£¢%d,%d£¢,*ptr,*(++ptr));
( 8,8 ) 10·Ö

¶þ¡¢±à³Ì(www.cppentry.com)Ì⣨µÚһСÌâ20£¬µÚ¶þСÌâ30·Ö£©
1¡¢ ²»Ê¹Óÿ⺯Êý£¬±àдº¯Êýint strcmp(char *source, char *dest)
ÏàµÈ·µ»Ø0£¬²»µÈ·µ»Ø-1£»

int strcmp(char *p1, char *p2)
{
char *s1 = p1;
char *s2 = p2;
char c1, c2;
int flag;
do 

c1=(char) *s1++;
c2=(char) *s2++;
if (c1==~\0~)
{flag=(int)(c1 - c2); break;}
} while (c1 == c2);

if (flag==0) return flag;
else return flag=-1;
}

2¡¢ дһº¯Êýint fun(char *p)ÅжÏÒ»×Ö·û´®ÊÇ·ñΪ»ØÎÄ£¬ÊÇ·µ»Ø1£¬²»ÊÇ·µ»Ø0£¬³ö´í·µ»Ø-1
int fun(char *p)
{
int i=0, len=0, flag=0;
while ((*p)!=~\0~)
{p++; len++;}
if (len==0) return flag=-1;
p=p-len;
for (i=0; i<=len/2; i++)
{
if (p[i]!=p[len-1-i])
return flag=0;
}
return flag=1;
}

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