Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

c/c++ Êý×Öת³É×Ö·û´®, ×Ö·û´®×ª³ÉÊý×Ö

Êý×Öת×Ö·û´®£º
ÓÃC++µÄstreanstream:
#include <sstream>
#Include <string>
string num2str(double i)
...{
        stringstream ss;
        ss<<i;
        return ss.str();
}
×Ö·û´®×ªÊý×Ö£º
int str2num(string s)
 ...{  
        int num;
        stringstream ss(s);
        ss>>num;
        return num;
}
ÉÏÃæ·½·¨ºÜ¼ò±ã, ȱµãÊÇ´¦Àí´óÁ¿Êý¾Ýת»»ËٶȽÏÂý..
C libraryÖеÄsprintf, sscanf Ïà¶Ô¸ü¿ì
¿ÉÒÔÓÃsprintfº¯Êý½«Êý×ÖÊä³öµ½Ò»¸ö×Ö·û»º³åÇøÖÐ. ´Ó¶ø½øÐÐÁËת»»...
ÀýÈ磺
ÒÑÖª´Ó0µã¿ªÊ¼µÄÃëÊý(seconds) £¬¼ÆËã³ö×Ö·û´®"H:M:S",  ÆäÖÐHÊÇСʱ, M£½·ÖÖÓ£¬S£½Ãë
         int H, M, S;
        string time_str;
        H=seconds/3600;
        M=(seconds%3600)/60;
        S=(seconds%3600)%60;
        char ctime[10];
        sprintf(ctime, "%d:%d:%d", H, M, S);             // ½«ÕûÊýת»»³É×Ö·û´®
        time_str=ctime;                                                 // ½á¹û
Óësprintf¶ÔÓ¦µÄÊÇsscanfº¯Êý, ¿ÉÒÔ½«×Ö·û´®×ª»»³ÉÊý×Ö
    char    str[] = "15.455";
    int     i;
    float     fp;
    ssca


Ïà¹ØÎĵµ£º

ÓÃCSocket´´½¨C/S½á¹¹

CSocketÅÉÉúÓÚCAsyncSocket, ËùÓÐÊ©ÖîÓÚÉϵIJÙ×÷½ÔΪͬ²½²Ù×÷¡£±ÈÈçConnnect,ReceiveµÈ¡£
ͬ²½²Ù×÷µÄÓŵãÊǼòµ¥Ò×Ó㬵«È±µãÒ²ÏÔ¶øÒ×¼û£¬Ð§ÂʵÍÏ£¬ÒòΪÄã±ØÐëµÈµ½Ò»¸ö²Ù×÷Íê³ÉÖ®ºó²ÅÄܽøÐÐÏÂÒ»¸ö²Ù×÷¡£
Èç¹ûÄãºÜ¹ØÐÄЧÂÊ£¬¾ÍÓ¦¸ÃÓÅÏÈʹÓÃCAsyncSocket¡£·´Ö®¾ÍÓÃCSocket¡£
ÏÂÃæ½«ËµÃ÷ÈçºÎÓÃCSocket´´½¨¼òµ¥µÄ·þÎñÆ÷ºÍ¿Í» ......

VC++ÓÃOO4OÁ¬½ÓOracleÊý¾Ý¿â

ÔÚ´ò°üoralce¿Í»§¶Ëºó£¬¾­³£»áÓöµ½Õâ¸öÎÊÌâ“specified   class   not   registered   in   registry”
½â¾ö°ì·¨£º
       ÕâÊÇÒòΪÓм¸¸öÁ´½Ó¿âdll»òocxûע²áµÄÔ­Òò£¬¾­±¾È˲âÊÔΪÒÔÏÂ5¸öÎļþ£º
     ......

C/C++ÓïÑÔvoid¼°voidÖ¸ÕëÉî²ã̽Ë÷

¡¡¡¡1.¸ÅÊö
¡¡¡¡Ðí¶à³õѧÕß¶ÔC/C++ÓïÑÔÖеÄvoid¼°voidÖ¸ÕëÀàÐͲ»ÉõÀí½â£¬Òò´ËÔÚʹÓÃÉϳöÏÖÁËһЩ´íÎó¡£±¾ÎĽ«¶Ôvoid¹Ø¼ü×ÖµÄÉî¿Ìº¬Òå½øÐнâ˵£¬²¢ÏêÊövoid¼°voidÖ¸ÕëÀàÐ͵ÄʹÓ÷½·¨Óë¼¼ÇÉ¡£
¡¡¡¡2.voidµÄº¬Òå
¡¡¡¡voidµÄ×ÖÃæÒâ˼ÊÇ“ÎÞÀàÐÍ”£¬void *ÔòΪ“ÎÞÀàÐÍÖ¸Õ딣¬void *¿ÉÒÔÖ¸ÏòÈκÎÀàÐ͵ÄÊ ......

¹ØÓÚC/C++ ±í´ïʽÇóֵ˳Ðò 䶨Òå


±í´ïʽµÄ¸±×÷ÓÃ
ÔËËã·ûµÄÓÅÏȼ¶Óë½áºÏÐԹ涨Á˱í´ïʽÖÐÏàÁÚÁ½¸öÔËËã·ûµÄÔËËã´ÎÐò£¬µ«¶ÔÓÚ˫Ŀ
ÔËËãµÄ²Ù×÷Êý£¬C++ûÓй涨ËûÃǵļÆËã´ÎÐò¡£ÀýÈ磬¶ÔÓÚ±í´ïʽ£º
exp1 + exp2;
ÏȼÆËã exp1 »¹ÊÇ exp2£¿²»Í¬µÄ±àÒëÆ÷Óв»Í¬µÄ×ö·¨¡£
ÔÚÊýѧÉÏ£¬¶ÔÓÚ˫ĿÔËËã·û£¬²»ÂÛÏȼÆËãÄÄÒ»¸ö²Ù×÷Êý£¬ÒªÇó×îÖÕ¼ÆËã½á¹ûÒ»Ñù¡£
ÔÚ C ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ