SQLiteÓëC½áºÏ
SQLite¹Ù·½ÍøÕ¾Àý×Ó£º
#include <stdio.h>
#include <sqlite3.h>
static int callback(void *NotUsed, int argc, char **argv, char **azColName){
int i;
for(i=0; i<argc; i++){
printf("%s = %s\n", azColName[i], argv[i] ? argv[i] : "NULL");
}
printf("\n");
return 0;
}
int main(int argc, char **argv){
sqlite3 *db;
char *zErrMsg = 0;
int rc;
if( argc!=3 ){
fprintf(stderr, "Usage: %s DATABASE SQL-STATEMENT\n", argv[0]);
exit(1);
}
rc = sqlite3_open(argv[1], &db);
if( rc ){
fprintf(stderr, "Can't open database: %s\n", sqlite3_errmsg(db));
sqlite3_close(db);
exit(1);
}
rc = sqlite3_exec(db, argv[2], callback, 0, &zErrMsg);
if( rc!=SQLITE_OK ){
fprintf(stderr, "SQL error: %s\n", zErrMsg);
sqlite3_free(zErrMsg);
}
sqlite3_close(db);
return 0;
}
ÓÃgcc±àÒë
gcc -lsqlite3 sqlite.c -o sqlite
ÔËÐÐʱ./sqlite ab.db 'SQL Óï¾ä'
Ïà¹ØÎĵµ£º
#include<stdio.h>
int cubeByValue(int n);
int main(){
int number = 5 ;
printf("The original value of number is %d\n",number);
number = cubeByValue(number);
printf("The new  ......
CÖеĿɱä²ÎÊýÑо¿
Ò»£® ºÎν¿É±ä²ÎÊý
int
printf( const char* format, ...);
ÕâÊÇʹÓùýCÓïÑÔµÄÈËËùÔÙÊìϤ²»¹ýµÄprintfº¯ÊýÔÐÍ£¬ËüµÄ²ÎÊýÖÐ
¾ÍÓй̶¨²ÎÊýformatºÍ¿É±ä²ÎÊý£¨ÓÔ…”±íʾ£©. ¶øÎÒÃÇÓÖ¿ÉÒÔÓø÷ÖÖ·½Ê½À´µ÷ÓÃprintf,Èç:
printf("%d",value);
printf("%s",s ......
I2CÊÇPhillips¿ª·¢µÄ2ÏߵĴ®ÐÐ×ÜÏßÐÒ顣ͨ³£Ó¦ÓÃÔÚǶÈëʽϵͳÖÐÈò»Í¬µÄ×é¼þͨÐÅ£¬PCÖ÷°å¿ÉÒÔͨ¹ýI2CÀ´Ó벻ͬµÄ´«¸ÐÆ÷ͨÐÅ¡£ÕâЩ´«¸ÐÆ÷ͨ³£±¨¸æ·çÉÈËÙ¶È£¬´¦ÀíÆ÷ζȺÍÕû¸öÓ²¼þϵͳµÄÐÅÏ¢£¬Õâ¸öÐÒéÒ²¿ÉÒÔÓÃÔÚRAM chipsÉÏ£¬Ïò²Ù×÷ϵͳÌṩDIMMµÄÐÅÏ¢¡£
ÔÚ2.0ʱI2CµÄkernelÔ´Âë²»ÔÚÄÚºËÀïµÄ£¬2.4Äں˰üÀ¨ÁËÒ»µã¶ÔI2CµÄÖ§³Ö ......
³£¼ûµÄÄÚ´æ·ÖÅäºÍʹÓôíÎó
1) ÄÚ´æµÄÉêÇëºÍ·ÖÅ䲢ûÓгɹ¦£¬µ«³ÌÐòԱȴʹÓÃÁËËü¡£Ò»Ð©ÐÂÊÖ¾³£»á·¸ÕâÖÖ´íÎó£¬ËûÃDz¢²»»áÁôÒâµ½ÄÚ´æÃ»ÓзÖÅä³É¹¦¡£ÅжÏÖ¸ÕëµÄÖµÊÇ·ñΪNULL¿ÉÒÔÓÐЧµØ±ÜÃâÕâÖÖ´íÎó¡£
2) ÄÚ´æµÄ·ÖÅäÒѾ³É¹¦£¬µ«ÊÇȴûÓнøÐгõʼ»¯¾ÍÖ±½ÓʹÓÃËüÁË¡£Ê×ÏÈÊ ......
µÚ3Õ ÔõÑù²ÅÄܸßЧÂʲâÊÔ
3.1 ËÆÊǶø·ÇµÄ¸ßЧÂÊ
ÕâÒ»½Ú³ÎÇåһЩÁ÷ÐеÄÎó½â»òÎóµ¼£¬Ò»Ð©¿´ÆðÀ´ºÜ²»´íµÄ¸ßЧÂÊ£¬Êµ¼ÊÉÏÊÇËÆÊǶø·ÇµÄ¡£
È«×Ô¶¯Éú³ÉÓÃÀý
È«×Ô¶¯Éú³ÉÓÃÀýÊÇËùÓвâÊÔÈËÔ±µÄÆÚÅΣ¬ºÃÏûÏ¢ÊÇ£¬ÕâÊÇÒ»ÖÖ¼òµ¥µÄ¼¼Êõ£¬Ê®Äêǰ¾ÍÓÐÁË£¬»µÏûÏ¢ÊÇ£¬ÕâÖÖ¼¼Êõ×÷ÓúÜС¡£
......