锘??xml version="1.0" encoding="utf-8" standalone="yes"?>久久91精品久久91综合,国産精品久久久久久久,久久久噜噜噜久久中文字幕色伊伊http://m.shnenglu.com/kang/zh-cnWed, 07 May 2025 20:43:24 GMTWed, 07 May 2025 20:43:24 GMT60- memmove銆乵emcpy鍜宮emccpy綆浠?/title>http://m.shnenglu.com/kang/archive/2009/04/05/78984.htmlkangkangSat, 04 Apr 2009 16:43:00 GMThttp://m.shnenglu.com/kang/archive/2009/04/05/78984.htmlhttp://m.shnenglu.com/kang/comments/78984.htmlhttp://m.shnenglu.com/kang/archive/2009/04/05/78984.html#Feedback4http://m.shnenglu.com/kang/comments/commentRss/78984.htmlhttp://m.shnenglu.com/kang/services/trackbacks/78984.htmlmemmove銆乵emcpy鍜宮emccpy涓変釜鍑芥暟閮芥槸鍐呭瓨鐨勬嫹璐濓紝浠庝竴涓紦鍐插尯鎷瘋礉鍒板彟涓涓紦鍐插尯銆?br>memmove(void *dest,void*src,int count)
memcpy(void *dest,void *src,int count)
memccpy(void*dest,void*src,int ch,int count)
琛ㄥご鏂囦歡: #include <string.h>
瀹氫箟鍑芥暟: void *memcpy(void *dest, const void *src, size_t n)
鍑芥暟璇存槑: memcpy()鐢ㄦ潵鎷瘋礉src鎵鎸囩殑鍐呭瓨鍐呭鍓峮涓瓧鑺傚埌dest鎵鎸囩殑鍐呭瓨鍦板潃涓娿備笌strcpy()涓嶅悓鐨勬槸,memcpy()浼氬畬鏁寸殑澶嶅埗n涓瓧鑺?涓嶄細鍥犱負閬囧埌瀛楃涓茬粨鏉?\0'鑰岀粨鏉?br>榪斿洖鍊? 榪斿洖鎸囧悜dest鐨勬寚閽?br>
琛ㄥご鏂囦歡: #include <string.h>
瀹氫箟鍑芥暟: void *memccpy(void *dest, const void *src, int c, size_t n);
鍑芥暟璇存槑: memccpy()鐢ㄦ潵鎷瘋礉src鎵鎸囩殑鍐呭瓨鍐呭鍓峮涓瓧鑺傚埌dest鎵鎸囩殑鍦板潃涓娿備笌memcpy()涓嶅悓鐨勬槸,memccpy()濡傛灉鍦╯rc涓亣鍒版煇涓壒瀹氬?int c)绔嬪嵆鍋滄澶嶅埗銆?br>榪斿洖鍊? 榪斿洖鎸囧悜dest涓間負c鐨勪笅涓涓瓧鑺傛寚閽堛傝繑鍥炲間負0琛ㄧず鍦╯rc鎵鎸囧唴瀛樺墠n涓瓧鑺備腑娌℃湁鍊間負c鐨勫瓧鑺傘?br>
琛ㄥご鏂囦歡: #include <string.h>
瀹氫箟鍑芥暟: void *memmove(void *dest, const void *src, size_t n);
鍑芥暟璇存槑:memmove()鏄粠涓涓紦鍐插尯縐誨姩鍒板彟涓涓紦鍐插尯涓?nbsp;
榪斿洖鍊? 榪斿洖鎸囧悜dest鎸囬拡銆?br>
褰揹est <= src-count 鎴杁est >= src+count鏃訛紝浠ヤ笂涓変釜鍑芥暟鍧囦笉浼氫駭鐢熻鐩栭棶棰橈紝鍗蟲簮鏁版嵁涓嶄細琚洿鏀廣?br>鑻ヤ笉鍦ㄤ互涓婅寖鍥村唴錛屽垯婧愭暟鎹細琚洿鏀廣?br>
濡?
char a[]={'a','b'};
char b[]={'c','d','e','f','g','h'};
memmove(a,b,sizeof(b));
鎴栨槸鐩存帴char *p=b+2;memmove(p,b,sizeof(b));
杈撳嚭鏁版嵁浼氬彂鐜癰涓暟鎹緭鍑哄凡琚洿鏀廣?br>鍙戠幇鍗充嬌a鏁扮粍鎸囧悜鐨勭┖闂翠笉澶熷瓨鍌ㄦ暟鎹紝涔熻兘澶熺Щ鍔ㄦ垚鍔熴?br>鍘熷洜|dest - src |<count
濡傛灉鍦ㄤ嬌鐢ㄨ繖浜涘嚱鏁版椂錛屽垎閰嶇粰瓚沖鐨勭┖闂達紝鐒跺悗鍐嶄嬌鐢ㄥ氨涓嶄細鍑虹幇瑕嗙洊闂銆備篃灝辨槸璇村鏋滃閮ㄥ垎閰嶇粰鐨勭┖闂翠笉瓚充互瀛樺偍瑕佹嫹璐濈殑鏁版嵁鏃訛紝灝辨湁鍙兘鍑虹幇婧愭暟鎹瑕嗙洊鏇存敼鐨勯棶棰樸?br>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void main(void)
{
int i=0;
char a[9]={'a','b','c','d','e','f','g','h','\0'};
char p[2]={'q','w'};//鎴朿har *p=a+2;
memmove(p,a,sizeof(a));
puts(a);
printf("_____________________________________________\n");
puts(p);
printf("_____________________________________________\n");
for(i =0;i<10;i++)
printf("%c %d \n",*(a+i),a+i);
printf("_____________________________________________\n");
for(i =0;i<8;i++)
printf("%c %d \n",*(p+i),p+i);
}
瑙傚療杈撳嚭緇撴灉銆?br>鎶妋emmove(p,a,sizeof(a));鏀逛負memcpy(p,a,sizeof(a));鎴杕emccpy(p,a,'e',sizeof(a));鍐嶈瀵熻緭鍑虹粨鏋溿?br>鍙互鐪嬪嚭鍦ㄧ洰鐨勫瓨鍌ㄧ┖闂翠笉瓚蟲椂錛屼究浼氬嚭鐜版簮鏁版嵁琚鐩栨敼鍙樼殑闂銆?br>濡傛灉鐩殑瀛樺偍絀洪棿鍒嗛厤瓚沖鐨勭┖闂達紝鍒欎究涓嶄細鍑虹幇瑕嗙洊闂銆?br>

]]>- C++涓噸杞姐佽鐩栧拰闅愯棌鐨勫尯鍒?/title>http://m.shnenglu.com/kang/archive/2009/03/21/77409.htmlkangkangSat, 21 Mar 2009 07:43:00 GMThttp://m.shnenglu.com/kang/archive/2009/03/21/77409.htmlhttp://m.shnenglu.com/kang/comments/77409.htmlhttp://m.shnenglu.com/kang/archive/2009/03/21/77409.html#Feedback0http://m.shnenglu.com/kang/comments/commentRss/77409.htmlhttp://m.shnenglu.com/kang/services/trackbacks/77409.html1銆侀噸杞芥槸鎸囧湪鍚屼竴涓被涓嚱鏁板悕鐩稿悓錛屼絾鍙傛暟綾誨瀷鎴栧弬鏁頒釜鏁頒笉鍚屻傚浜庡彧鏈夎繑鍥炲肩被鍨嬩笉鍚岋紝澶ч儴鍒嗙紪璇戝櫒涓嶆敮鎸併傚悓鏃訛紝閲嶈澆鍑芥暟涓垏璁伴粯璁ゅ弬鏁扮殑浣跨敤錛屽錛歩nt input();涓巌nt input(int num=0);鍦ㄤ嬌鐢╥nput()鍑芥暟鏃訛紝緙栬瘧鍣ㄤ笉鐭ラ亾璋冪敤鍝竴涓嚱鏁幫紝鑰屽湪緙栬瘧鏃朵駭鐢熼敊璇?br> 閲嶈澆鍙敤vitrual鍏抽敭瀛椾慨楗幫紝涔熷彲涓嶇敤銆?br>2銆佽鐩栨槸鎸囧湪鍩虹被涓庡叾媧劇敓綾諱箣闂達紝鍑芥暟鐨勫0鏄庝竴鑷達紙鍙傛暟涓庤繑鍥炲肩被鍨嬶紝浠ュ強鍙傛暟涓暟錛夛紝鍚屾椂鍩虹被鍑芥暟鐢╲itual鍏抽敭瀛椾慨楗般?br>3銆侀殣钘忔槸鎸囧湪鍩虹被涓庡叾媧劇敓綾諱箣闂達紝鑻ユ淳鐢熺被鐨勫嚱鏁頒笌鍩虹被鐨勫嚱鏁板悓鍚嶏紝榪斿洖鍊煎拰鍙傛暟綾誨瀷涓暟涔熶竴鑷達紝鑰屽熀綾諱腑璇ュ嚱鏁板茍鏈敤virtual鍏抽敭瀛椾慨楗幫紝姝ゆ椂鍩虹被鐨勫嚱鏁板皢琚殣钘忋傝嫢鍩虹被鐨勫嚱鏁板凡鐢ㄦ垨鏈敤virtual鍏抽敭瀛椾慨楗幫紝鍙媧劇敓綾諱腑瀛樺湪涓庡叾鍚屽悕鍑芥暟錛屽湪榪斿洖鍊兼垨鍙傛暟綾誨瀷鎴栦釜鏁頒笂涓嶅悓錛屽熀綾葷殑鍑芥暟灝嗚闅愯棌銆?/p>

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