delphi 數據類ÐÍ

delphi 數據類ÐÍ ¶¨義A~Z 為ÓÐÐòÐÍ£¬A為×îС£¬Z×î´ó¡£

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Delphi(Pascal) code:

var
arr:array ['A'..'Z'] of Char;

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Óü¯ºÏ¸ã¶¨

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Ôõ麼È¥運ËãÄØ£¿inc() ?

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XX A~Z
 XX:='A'
 inc(XX)ÒªµÈì¶B

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ASCÂ룬A£¨65£©£¬B£¨66£©¡­¡­

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A£¬ZΪ±äÁ¿Â𣿣¬ÓÃö¾ÙÒ²¿ÉÒÔ

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ÒýÓÃ

ASCÂ룬A£¨65£©£¬B£¨66£©¡­¡­

ÍƼö£¬ÓÃascÂëincÍêÔÙת»ØÀ´

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type
  gc = 'A'..'Z'

VAR
  c: gc;