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ÏóDelphiÖÐfunction   Read(var   Buffer;   Count:   Longint):   Longint;   override;ÏóBufferÕâÑùûÓÐÀàÐ͵IJÎÊý¾¿¾¹Ó¦¸ÃÔõô¸ø²ÎÊý£¿£¿£¿£¿  
  Õâ˵Ã÷BufferÊÇͨ¹ýµØÖ··½Ê½´«µÝµÄ£¬Ò»°ã˵À´Ö»ÒªÊÇÒ»¶ÎÄÚ´æÇøÓò¾ÍÐС£  
var   Buffer;   const   buffer;  
  ÕâЩûÀàÐÍ˵Ã÷µÄÐβÎ˵Ã÷ÊÇÈ¡µØÖ·µÄÊ×µØÖ·¡£  
  ÀàÐÍ               Ê×µØÖ·  
  string           string[1]  
  char               ×Ô¼º  
  integer         ×Ô¼º  
  record           ×Ô¼º  
  array             arr[0]  
  pchar             pchar()^  
  pointer         pointer()^  
  otherPointer           otherPointer()^     PInteger()^Ö®ÀàµÄ  
   
  Ò»°ãÓÃÊ×µØÖ·µÄ·½·¨»òº¯Êý³ýÁËÊ×µØÖ·Í⣬¶¼ÓÐÒ»ÈËcountµÄ²ÎÊý£¬Ò»°ãÎÒÃÇÓà  
  length(string),   sizeof(record),   sizeof(type)   *   lengh  
   
  Èç¹ûÄãÔÚдreocordÖÐÓÐstring,ÇëΪËü·ÖÅäÄڴ棺   string[len],   or   str:   array[0..len]   of   char
                Buffer1:Array   of   char;    
                Buffer2:Array   [0..2048]   of   char;  
  Buffer1   ºÍ   Buffer2   ÔÚʹÓÃÉÏÊÇûÓÐÇø±ðµÄ,Èç:  
  Buffer1[10]   ºÍ   Buffer2[10]µÈ¼Û----char   ÀàÐÍ  
  Buffer1   ºÍ   Buffer2µÈ¼Û     ----------pointer   ÀàÐÍ  
  ËùÒÔ: &


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