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2. include Ò»¶¨¼ÓÉÏ mysqlµÄinclude£¨ÒòΪҪÅÜÕâ¹Ø¼üÒ»¾ä
#include <mysql.h>£©
3 lib Ò»¶¨¼ÓÉÏ mysqlµÄlib
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#include
<windows.h>//ÓÃÕâ¸ö·½±ã£¬°üº¬winsock.hËùÒÔ°üº¬winsockÒ²¿ÉÒÔ
#include <iostream>
#include <mysql.h>
using namespace std;
int main( int argc, char * argv[] )
{
//ÕâÀàÐͱð´íÁË£¬¾ßÌå¿´Îĵµ
MYSQL mysql;
MYSQL *pdata;
MYSQL_RES
*result;
MYSQL_ROW
row;
char sqlcommand[80];
mysql_init(&mysql);//Ò»¸ö³õʼ»¯
mysql_options(&mysql,MYSQL_READ_DEFAULT_GROUP,"Gamer");
//¿ØÖÆÁ´½ÓÐÐΪµÄ
pdata=mysql_real_connect(&mysql,"localhost","root","123456","gamer",0,NULL,0);
//Êý¾Ý¿âÁ´½Ó
if(pdata)
{
cout<<"connect
successful!!"<<endl;
}
if(mysql_select_db(pdata,"gamerdata"))
{
cout<<"select_db
successful!!"<<endl;
}
//È»ºóÑ¡ÔñÊý¾Ý¿âÁË£¬µ±È»ÓÃsqlÒ»Ñù£¬º¯Êý¿´×Å·½±ãµã
sprintf(sqlcommand,"select * from
gamerdata");
mysql_query(pdata,sqlcommand);
//Õâ¾ä¸ÉʲôµÄ²»ÓÃÎÒ·Ñ´½ÉàÁË
result =
mysql_use_result(pdata);
//»ñÈ¡¼Ç¼¼¯
row = mysql_fetch_row(result);
//°´Êý×鷽ʽ°ÑÊý¾Ý·Åµ½rowÖУ¬µ±Ç°ÐеÄ
//¿´ËùÓÐÐмӸöÑ»·¾ÍºÃ£¬Óαê×Ô¼º»áÅÜ£¬²»ÀÍ´ó¼Ò·ÑÐÄ¡£
cout<<row[1];
//¿ÉÒÔÊä³öÁË£¬´ó¹¦¸æ³É
mysql_close(pdata);
//±ðÍüÁË¿ªµÆ£¬ÍüÁ˹صÆ
}
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As is Known to us,the function Main is the entry point of all programs.Therefore, we are usually neglecting all that we don't do,which makes us not understanding it more clearly.Now there is a sample arm program which will provide something that opration system usually do.
asm:
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Definition:
C and C++ have the notion of lvalues and rvalues associated with
variables and constants. The rvalue is the data value of the variable,
that is, what information it contains. The "r" in rvalue can ......
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