/// <summary>
/// 計算出運算樹的計算結果
/// </summary>
/// <param name="tree">運算樹</param>
/// <returns>計算結果</returns>
public decimal EvaluateTree(ExpressionTree tree)
{
Node top = tree.GetTop();
decimal ans = PackNode(top).Value.Number ?? 0;
return(ans);
}
/// <summary>
/// 加一棵子樹進來
/// </summary>
/// <param name="tree">子樹</param>
public void Add(ExpressionTree tree)
{
//如果是第一個數字
if (Root == null)
{
this.Root = tree.Root;
this.CurrentNode = tree.CurrentNode;
}
if (CurrentNode.IsOperator())
{
Node topNode = tree.GetTop();
CurrentNode.RightNode = topNode;
topNode.ParentNode = CurrentNode;
//主樹現有node必須是子樹的頂端
CurrentNode = topNode;
}
this.LastCurrentNode = tree.GetTop();
}
/// <summary>
/// 計算樹的結果
/// </summary>
/// <param name="tree">運算樹</param>
/// <returns>運算答案</returns>
public decimal EvaluateTree(ExpressionTree tree)
{
Node top = tree.GetTop();
if (top.NodeValue.Number.HasValue)
{
return(top.NodeValue.Number.Value);
}
decimal ans = PackNode(top).NodeValue.Number.Value;
return(ans);
}
/// <summary>
/// 計算樹的結果
/// </summary>
/// <param name="tree">運算樹</param>
/// <returns>運算答案</returns>
public decimal EvaluateTree(ExpressionTree tree)
{
System.Diagnostics.Debug.WriteLine($"there 11");
Node top = tree.GetTop();
if (top.NodeValue.Number.HasValue)
{
return(top.NodeValue.Number.Value);
}
decimal ans = PackNode(top).NodeValue.Number.Value;
return(ans);
}