public void TestMethod3()
        {//测试输入答案的格式不正确的识别情况
            Build build = new Build();

            build.Expr[0] = 1;
            build.Expr[1] = 101;
            build.Expr[2] = 7;
            build.Expr[3] = 102;
            build.Expr[4] = 6;
            build.Expr[5] = 103;
            build.Expr[6] = 3;
            build.Expr[7] = 104;
            build.Expr[8] = 2;
            build.flag    = 9;
            build.p       = 9;
            //表达式是1+7-6*3/2
            build.TurnToHou();
            BinaryTree tree;

            tree = build.createtree();         //将后缀表达式转换为二叉树
            tree.preordercalc(tree.getroot()); //计算最终的结果并存在根节点
            Ans ans = new Ans();

            tree.getroot().value.Reduction();
            MyNumber correctAnswer = tree.getroot().value;//这里保存了计算出来的答案
            int      ansflag       = ans.GetResult(correctAnswer, "-1’");

            Assert.AreEqual(2, ansflag);
        }
        public void TestMethod2()
        {//测试括号和乘方的计算正确性
            Build build = new Build();

            build.Expr[0]  = 1;
            build.Expr[1]  = 101;
            build.Expr[2]  = 106;
            build.Expr[3]  = 7;
            build.Expr[4]  = 102;
            build.Expr[5]  = 6;
            build.Expr[6]  = 107;
            build.Expr[7]  = 105;
            build.Expr[8]  = 3;
            build.Expr[9]  = 104;
            build.Expr[10] = 2;
            build.flag     = 11;
            build.p        = 11;
            //表达式是1+(7-6)^3/2
            build.TurnToHou();
            BinaryTree tree;

            tree = build.createtree();         //将后缀表达式转换为二叉树
            tree.preordercalc(tree.getroot()); //计算最终的结果并存在根节点
            Ans ans = new Ans();

            tree.getroot().value.Reduction();
            MyNumber correctAnswer = tree.getroot().value;//这里保存了计算出来的答案
            int      ansflag       = ans.GetResult(correctAnswer, "3/2");

            Assert.AreEqual(1, ansflag);
        }