SQLite3µÄC±à³Ì
/*=================================
.* The Standard include file.
.*
.*===============================*/
#include <stdio.h>
#include <stdlib.h>
/*=================================
.*
.* The extend include file.
.*
.*===============================*/
#include "sqlite3.h"
/* #include "sqlite3ext.h" */
int main()
{
/* Connect SQLite system. */
sqlite3 *pDatabase = NULL;
int result;
char sql[500];
char *err_msg = NULL;
int i;
result = sqlite3_open("test.db3", &pDatabase);
if( result != SQLITE_OK ) {
printf("Failure to open the database.\n");
return -1;
} else
printf("Good to open the database.\n");
sprintf(sql,"BEGIN");
sqlite3_exec(pDatabase, sql,0,0,err_msg);
sprintf(sql, "CREATE TABLE [TestDB] (\
[id] int, [name] varchar(20), [age] int)");
/*
if (SQLITE_OK != sqlite3_exec(pDatabase, sql, 0, 0, &err_msg)) {
printf("operate failed: %s.\n", err_msg);
return -1;
}*/
for(i = 0; i < 10000; i++) {
sprintf(sql, "INSERT INTO [TestDB] ([id], [name], [age]) \
Ïà¹ØÎĵµ£º
ʲôÊÇ¿ÕÖ¸Õë³£Á¿£¨null pointer constant£©?
[6.3.2.3-3] An integer constant expression with the value 0, or such an expression cast to type void *, is called a null pointer constant.
ÕâÀï¸æËßÎÒÃÇ£º0¡¢0L¡¢'\0'¡¢3 - 3¡¢0 * 17 £¨ËüÃǶ¼ÊÇ“integer constant expression”£©ÒÔ¼° (void*)0 µÈ¶¼ÊÇ¿Õ ......
C/C++µ×²ãʵÏÖÖ¸¶¨´ÅÅÌÖ»¶Á ÊÕ²Ø
Ñà¿ñͽдµÄÇý¶¯¹Ò¹³£¬ÏÞÖÆ´ÅÅÌÖ»¶Á£¬ ÓÃÓÚ±£Ö¤ÉæÃܼÆËã»úµÄÎȶ¨£¬Ï൱ÓÚ½«´ÅÅ̱ä³ÉROM #include "ntddk.h"
#include
#include #define DRIVERNAME "OnlyRead(GongXiPeng!)" // for use in messages typedef struct tagDEVICE_EXTEN ......
×ÜÊDZ»Í¬Ñ§ÃÇÎʵ½£¬ÈçºÎѧϰCºÍC++²Å²»Ã£È»£¬²Å²»ÊÇÂÒѧ£¬ÏëÁËһϣ¬ÕâÀï¸ø³öÒ»¸ö×ܵĻظ´¡£
¡¡¡¡Ò»¼ÒÖ®ÑÔ£¬»¶ÓÅÄש¹þ¡£
¡¡¡¡1¡¢¿ÉÒÔ¿¼ÂÇÏÈѧϰC.
¡¡¡¡´ó¶àÊýʱºò£¬ÎÒÃÇѧϰÓïÑÔµÄÄ¿µÄ£¬²»ÊÇΪÁ˳ÉΪһ¸öÓïÑÔר¼Ò£¬¶øÊÇÏ£Íû³ÉΪһ¸ö½â¾öÎÊÌâµÄר¼Ò¡£×öÒ»¸öÓÐÓõijÌÐòÔ±£¬×öÒ»¸ö׬ǮµÄ³ÌÐòÔ±¡£ÎÒÃǵļÛÖµ£¬½«ÌåÏÖÔÚ¿Í ......
×î½üʵÔÚÊÇ̫æÁË£¬ÕâÆªÕûÕû¾ÍÍÆ³ÙÁË1¸öÔÂÁË£¬ÊµÔÚÊǶԲ»Æð¡£Ö®Ç°±¾´òËãÕâ¸öÄ£¿é¾Í½áÊøÁË£¬Îļþ²Ù×÷¾Í²»Ð´ÁË£¬µ«ÊÇÎļþ²Ù×÷ÓÖÊÇÒ»¸öºÜÖØÒªµÄ¶«Î÷£¬¶øÇÒÒ²¸ÕºÃÄܹ»×ܽá֮ǰÎÒÃÇѧϰµÄËùÓÐ֪ʶ¡£Í¬Ê±Ò²ÎªÁ˽«Îļþ²Ù×÷Õâ¸ö³õѧÕßÈÏΪºÜÉñÃØµÄ¶«Î÷¸ø±¾ÖÊ»¯¡£Òò´Ë£¬±¾Æª½«ÖðÒ»½éÉÜCÓïÑÔµÄÎļþ²Ù×÷¡££¨±¾Ä£¿éµÄÃüÃû±¾À´ÊÇÏëC\C++Ò ......
ϵͳ½éÉÜ£º
´Ëϵͳ¾ßÓд«Í³ÊÓÆµ»áÒéµÄÒ»Çй¦ÄÜ£¬»ùÓÚä¯ÀÀÆ÷½çÃæ£¬¿ÉÒÔ¿ØÖÆÔ¶³ÌµÇ½£¬²Î»áÕß¿ÉÒÔͬʱ¿´µ½Ñݽ²ÕߺÍÑݽ²ÄÚÈÝ£¬²¢ÇåÎúµÄÌýµ½Ñݽ²ÕßÉùÒô£¬ÒѾÁË»ØÉùºÍÔëÒôµÄ´¦Àí£¬´ËÍ⻹¿ÉÒÔͬÉù´«Ò룬ÒÔÂú×㲻ͬÓïÖֲλáÈ˵ÄÒªÇ󡣲λáÕß»¹ÄÜʵÏÖ¶à»á³¡×ÔÓÉÇл»£¬²¢¿É²¥·ÅPPTµÈ¡£
ÐèÒªµÄÇëÁª ......