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2014-11-24 01:20:11 ¡¾´ó ÖРС¡¿ ä¯ÀÀ:8730´Î
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£¨1£© д³öANSI Cº¯Êý¿âÖÐÈý¸ö×Ö·û´®²Ù×÷º¯ÊýµÄÃû³Æ£¬Ð´³öÆäÖÐÈÎÒ»¸öµÄº¯ÊýÔ­ÐÍ£»²é¿´string.h


£¨2£© char *strcat( char *strDestination, const char *strSource );°ÑÇ°ºóÁ½¸ö×Ö·û´®Á¬½ÓÆðÀ´


£¨3£© char *strcpy( char *strDestination, const char *strSource );¿½±´º¯Êý£¬¡­¡­


£¨4£© int strcmp( const char *string1, const char *string2 );±È½Ïº¯Êý£¬¡­¡­


£¨5£© size_t strlen( const char *string );Ç󳤶Ⱥ¯Êý£¬


£¨6£© char *_strupr( char *string );С´óдת»»º¯Êý£¬×ª»»×Ö·û´®µÄ´óСд¡£


£¨2£©char str[ ]= £¢Hello£¢; sizeof(str) = 1BYTE


char *p=str; sizeof(p) = 4BYTE


float n=10.0; sizeof(n) = 4byte


£¨3£©char a[2][2][3]={{{1,6,3},{5,4,15}},{{22,19,33},{23,12,7}} };



char a[1][1][3] =


£¨4£©½âÊͶѺÍÕ»ÔÚ³ÌÐò´æ´¢¿Õ¼äÉÏ´ú±íµÄº¬Òå¡£



£¨5£©±àдһ¸ö±ê×¼Cº¯Êý£¬½«²ÎÊý´«µÝµÄ×Ö·û´®µßµ¹ÏÔʾ£¬×¢ÒâÍ·Îļþ£¬·ç¸ñºÍ×¢ÊÍ¡£


#include


#include<>


/*×Ö·ûת»»º¯Êý*/


Int Str_Convert(char* str)


{


Int nLen=0 ;


nLen=strlen(str);


for(int i=0;i

{


char ch;


ch = str[i];


str[i] = str[nLen-i];


str[nLen-i] = ch;


}



}


£¨6£©Ê¹Óñê×¼Cдһ¸ömainº¯Êý£¬³ÌÐò±àÒë¿Éͨ¹ý£¬µ«ÔËÐбÀÀ£¡£



Éè¼Æº¯ÊýʵÏÖ int atoi(char *s)¡£


#include //½«×Ö·û´®×ª»¯ÎªÕûÊý²¢·µ»Ø¸ÃÖµ


int atoi(char *s)


{


int i,result=0,length;


length=strlen(s);


if(s[0] == ¡®-¡¯) i=1; //ÈôÊǸºÊý£¬Ôò´ÓµÚÒ»¸ö×Ö·û¿ªÊ¼¼ÆÊý


else i=0; //·ñÔò´Ó0ºÅλ¿ªÊ¼¼ÆÊý


for( ; i < length; ++i)


{


result = result * 10 + s[i] ¨C 48; //48ÊÇ×Ö·û0µÄASCIIÂë


}


if(s[0] == ¡®-¡¯) return -1 * result;


else return result;


£¨7£© }


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