?? expressatom.cs
字號:
using System;
using System.Collections.Generic;
using System.Text;
namespace syn
{
public class ExpressAtom
{
private Operand _operand = null;
private Operator _operator = null;
private ExpressAtomEnum atomType;
public ExpressAtom(Operand operand)
{
this._operand = operand;
atomType = ExpressAtomEnum.Operand;
}
public ExpressAtom(Operator operater)
{
this._operator = operater;
atomType = ExpressAtomEnum.Operator;
}
public Operand Operand
{
get { return this._operand; }
}
public Operator Operator
{
get { return this._operator; }
}
public ExpressAtomEnum AtomType
{
get
{
return this.atomType;
}
}
public override string ToString()
{
return atomType == ExpressAtomEnum.Operand ?_operand.ToString(): _operator.ToString() ;
}
}
}
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