delphi基础
摘要:1.集合的用法(1)IN 判断是否存在typeTCharset = set of char;vart: TCharset;begint:= ['a','b','s'];if 's' in t thenShowMessage('in');end;判断是否缺乏if not ('m' in t) then// do something(2)增加删除+ ,-Include(t,'m');ExClude(t...
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posted @ 2010-01-26 21:12
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