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ÒÔǰÀÏÊǸ㲻Çå³þËüÃÇÖ®¼äµÄÇø±ð£¬½ñÌìרÃÅÑо¿Ò»Ï ÈçÓÐʲô´íÎó£¬Çë´ó¼ÒÖ¸Õý¡£ »ã±àÓïÑÔ£º szText db 'hello,world',0 mov eax,szText;ÕâÊÇ´íÎóµÄ£¡ mov al,szText;ÕâÊÇÕýÈ·µÄ,al='h' mov ebx,offset szText;ebx±£´æÁË"hello,world!",0×Ö·û´®µÄÊ×µØÖ· mov cl,szText+1;cl='e' szText±íʾ×Ö·û´®µÄµÚÒ»¸ö×Ö½Ú offset szText±íʾ¸Ã×Ö·û´®µÄµØÖ· szText+1±íʾÊ×µØÖ·+1µÄ×Ö½Ú CÓïÑÔ£º char *s = "hello,world" ;//¶¨ÒåsÕâ¸öÖ¸Õë±äÁ¿£¨4×Ö½Ú£©À´±£´æ×Ö·û´®µÄµØÖ· char str[] = "china" ;//str¾ÍÊÇ×Ö·û´®Ê×µØÖ·±¾Éí ÈçÏ£º int main(void) { char *s = "hello,world" ; char str[] = "abc" ; __asm { mov eax,s//eax¾ÍÊÇ"hello,world"µÄµØÖ· mov bl,byte ptr[eax] } } ÔÚ¶ÑÕ»ÖеÄÇé¿öÊÇ ---------- |00636261|--->´ËÕ»µØÖ·¾ÍÊÇ×Ö·û´®µÄÊ×µØÖ· ---------- |xxxxxxxx|--->´ËÕ»µØÖ·¾ÍÊÇsÖ¸Õë±äÁ¿µÄµØÖ·£¬ÄÚ²¿±£´æµÄÊÇ"hello,world"×Ö ---------- ·û´®µÄÊ×µØÖ· |EBP | ---------- ºÜÃ÷ÏÔ£¬sÔÚÄÚ´æÖÐÊÇÒªÕ¼¿Õ¼äµÄ£¨4 byte£©£¬¶østr¾ÍÊǵØÖ·±¾Éí£¬ËùÒÔ²»Õ¼¿Õ¼ä ÒÔÉÏÊÇ×Ô¼ºµÄһЩÀí½â£¬¿ÉÄÜ»áÓдíÎ󣬻¶Ó´ó¼Ò¸üÕý&²¹³ä [ Last edited by »ÃÓ°ÎÞºÛ on 2006-10-17 at 10:18 ] |
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