CÎļþ¶Áд
#include <stdio.h>
#define SIZE 50
int main()
{
FILE *fps=NULL;
fps=fopen("tests.txt","r");
FILE *fpd=NULL;
fpd=fopen("testd.txt","wt+");
fseek(fpd,0,SEEK_END);
char buffer[SIZE];
while (fps || fpd)
{
int t=fread(buffer,sizeof(char),SIZE,fps);
if (t==0)
{
break;
}
for (int i=0;i<t;++i)
{
printf("%s",buffer);
}
fwrite(buffer,sizeof(char),t,fpd);
}
printf("File operater end!\n");
}
Ïà¹ØÎĵµ£º
½«C/C++³ÌÐò·Åµ½ÍøÂçÉϲ¢²»ÊǼòµ¥µÄ¸´ÖÆÕ³Ìù£¬´ó²¿·ÖÍøÕ¾ºÍblogÊDz»Ìṩ´úÂëµÄÖ±½ÓÕ³ÌùµÄ£¨µ±È»CSDNÊDz»´íµÄ£©£¬Ö®Ç°ÔÚsinaд²©¿ÍµÄʱºò¾ÍÅöµ½ÀàËÆµÄÎÊÌâ¡£
C/C++×¥»»ÎªHTMLµÄ¹Ø¼üÊÇ´¦Àí×¢ÊÍ£¬¹Ø¼ü×Ö¡£µ±È»Ò²¿ÉÒÔ¶Ô×Ö·û´®£¬Êý×Ö½øÐÐÒ»¶¨µÄ¼ÓÁÁ´¦Àí¡£
1.ÎÒÒÔǰÓÃC++д¹ýÒ»¸ö³ÌÐò£¬Æäʵ±íÃæÉÏÊÇC++£¬Ö»ÊÇÊä³öÓÃÁËcoutºÍcin¶ ......
C/C++³ÌÐòԱӦƸ³£¼ûÃæÊÔÌâÉîÈëÆÊÎö(1)
×÷ÕߣºËᦻª e-mail:21cnbao@21cn.com ³ö´¦£ºÈí¼þ±¨
1.ÒýÑÔ
±¾ÎĵÄд×÷Ä¿µÄ²¢²»ÔÚÓÚÌṩC/C++³ÌÐòÔ±ÇóÖ°ÃæÊÔÖ¸µ¼£¬¶øÖ¼ÔÚ´Ó¼¼ÊõÉÏ·ÖÎöÃæÊÔÌâµÄÄÚº¡£ÎÄÖеÄ
´ó¶àÊýÃæÊÔÌâÀ´×Ô¸÷´óÂÛ̳£¬²¿·ÖÊÔÌâ½â´ðÒ²²Î¿¼ÁËÍøÓѵÄÒâ¼û¡£
Ðí¶àÃæÊÔÌâ¿´ËÆ¼òµ¥£¬È´ÐèÒªÉîºñµÄ»ù±¾¹¦²ÅÄܸø³öÍêÃÀ ......
CÖÐÔ¤±àÒëºê¶¨Òå
2010-01-07 11:49
ÔÚ½«Ò»¸öCÔ´³ÌÐòת»»Îª¿ÉÖ´ÐгÌÐòµÄ¹ý³ÌÖÐ, ±àÒëÔ¤´¦ÀíÊÇ×î³õµÄ²½Öè. ÕâÒ»²½ÖèÊÇÓÉÔ¤´¦ÀíÆ÷(preprocessor)À´Íê³ÉµÄ. ÔÚÔ´Á÷³ÌÐò±»±àÒëÆ÷´¦Àí֮ǰ, Ô¤´¦ÀíÆ÷Ê×ÏȶÔÔ´³ÌÐòÖеÄ"ºê(macro)"½øÐд¦Àí.
C ³õѧÕß¿ÉÄܶÔÔ¤´¦ÀíÆ÷ûʲô¸ÅÄî, ÕâÊÇÇéÓпÉÔµÄ: Ò»°ãµÄC±àÒëÆ÷¶¼½«Ô¤´¦Àí, »ã±à, ± ......
±¾ÎÄ´Ó½éÉÜ»ù´¡¸ÅÄîÈëÊÖ£¬Ì½ÌÖÁËÔÚC/C++ÖжÔÈÕÆÚºÍʱ¼ä²Ù×÷ËùÓõ½µÄÊý¾Ý½á¹¹ºÍº¯Êý£¬²¢¶Ô¼ÆÊ±¡¢Ê±¼äµÄ»ñÈ¡¡¢Ê±¼äµÄ¼ÆËãºÍÏÔʾ¸ñʽµÈ·½Ãæ½øÐÐÁ˲ûÊö¡£±¾ÎÄ»¹Í¨¹ý´óÁ¿µÄʵÀýÏòÄãչʾÁËtime.hÍ·ÎļþÖÐÉùÃ÷µÄ¸÷ÖÖº¯ÊýºÍÊý¾Ý½á¹¹µÄÏêϸʹÓ÷½·¨¡£
¹Ø¼ü×Ö£ºUTC£¨ÊÀ½ç±ê׼ʱ¼ä£©£¬Calendar Time£¨ ......
¶ÔÒ°Ö¸ÕëµÄһЩÈÏʶ£º
ÎÒ¶ÔÒ°Ö¸ÕëµÄÈÏʶ£¬ÎÒ¾õµÃÒ°Ö¸Õë¾ÍÊÇÒ»¸öÖ¸Õë±äÁ¿ËüÀïÃæµÄÖµÊDz»È·¶¨µÄ£¬ÕâÑùµ±Äã²Ù×÷Õâ¸ö±äÁ¿ËùÖ¸¶¨µÄÄÚ´æµØÖ·µÄʱºò£¬¾Í»á´øÀ´Ò»Ð©²»È·¶¨µÄÒòËØ£¬ÄÃÒ»¸ö±È½Ï³£¼ûµÄÎÊÌâÀ´¾Ù¸öÀý×ÓÀ´ËµÃ÷һϣº
¿´ÏÂÃæ´úÂ룺
int a = 10;
int *p;
*p = a;
1. ......