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51 lines
789 B
ObjectPascal
51 lines
789 B
ObjectPascal
program Example111;
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{ Program to demonstrate the Include/Exclude functions }
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Type
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TEnumA = (aOne,aTwo,aThree);
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TEnumAs = Set of TEnumA;
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Var
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SA : TEnumAs;
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Procedure PrintSet(S : TEnumAs);
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var
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B : Boolean;
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procedure DoEl(A : TEnumA; Desc : String);
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begin
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If A in S then
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begin
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If B then
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Write(',');
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B:=True;
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Write(Desc);
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end;
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end;
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begin
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Write('[');
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B:=False;
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DoEl(aOne,'aOne');
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DoEl(aTwo,'aTwo');
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DoEl(aThree,'aThree');
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Writeln(']')
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end;
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begin
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SA:=[];
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Include(SA,aOne);
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PrintSet(SA);
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Include(SA,aThree);
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PrintSet(SA);
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Exclude(SA,aOne);
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PrintSet(SA);
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Exclude(SA,aTwo);
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PrintSet(SA);
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Exclude(SA,aThree);
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PrintSet(SA);
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end.
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