diff --git a/TreeNode.py b/TreeNode.py
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+++ b/TreeNode.py
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+# -*- encoding: utf-8 -*-
+"""
+ @Author: packy945
+ @FileName: TreeNode.py
+ @DateTime: 2023/5/15 14:27
+ @SoftWare: PyCharm
+"""
+
+import re
+import tkinter as tk
+from data import *
+import tkinter.messagebox
+
+
+sz = []
+A = Aexp([0, 0, 0], [0, 0, 0], [0, 0, 0], [0, 0, 0])
+img_open = []
+img_png = []
+
+class Tree:
+    def __init__(self):
+        self.bc = 40
+        self.Node = []
+        self.rootID = None
+        self.deepth = []
+        self.place = []
+        self.mark = [0] * 110
+        self.ck = []
+
+    def check(self):
+        self.ck = [1] * len(self.Node)
+        for N in self.Node:
+            if N[3]:
+                self.ck[N[3]] = 0
+            if N[4]:
+                self.ck[N[4]] = 0
+
+    def remark(self):
+        self.mark = [0] * 110
+
+
+
+    def deep(self):
+        flag = 0
+        for i in range(len(self.Node)):
+            if self.Node[i][1] == 'Value':
+                self.deepth[i] = 0
+
+        for i in range(len(self.Node)):
+            if self.deepth[i] == -1:
+                flag = 1
+            if self.Node[i][3] != None and self.Node[i][4] != None:
+                # print(self.Node[i][3], self.Node[i][4])
+                self.deepth[i] = max(self.deepth[self.Node[i][3]], self.deepth[self.Node[i][4]]) + 1
+        # print(self.deepth)
+        if flag:
+            self.deep()
+
+    def calculate(self, node):
+        print(node)
+        if node[1] == 'Value':
+            return node[5] * 1.0
+        elif node[1] == 'Operator':
+            a = self.calculate(self.Node[node[3]])
+            b = self.calculate(self.Node[node[4]])
+            if node[2] == '^':
+                return pow(int(a), int(b))
+            else:
+            # print(a,node[2],b)
+                return eval(str(a) + node[2] + str(b))
+
+    def Aexp(self, node):
+
+        if node[1] == 'Value':
+            return str(node[5])
+        elif node[1] == 'Operator':
+            a = self.Aexp(self.Node[node[3]])
+            b = self.Aexp(self.Node[node[4]])
+            # print(a,node[2],b)
+            ans = '(' + str(a) + node[2] + str(b) + ')'
+            # print(ans)
+            return ans
+
+
+tree = Tree()
+
+
+cur = 0
+class TreeNode:
+    def __init__(self, Type, value, left=None, right=None, color='方块'):
+        global cur
+        self.NodeID = cur  # 节点编号
+        cur += 1
+        self.NodeType = Type  # 节点类型
+        self.Ops = None  # 运算符类型
+        self.left = left
+        self.right = right
+        self.LeftNodeID = None
+        self.RightNodeID = None
+        if self.left:
+            self.LeftNodeID = left.NodeID  # 左节点编号
+        if self.right:
+            self.RightNodeID = right.NodeID  # 右节点编号
+        self.FaceValue = None  # 节点数值
+        self.FaceColor = color  # 节点花色
+        if Type == 'Value':
+            self.FaceValue = value
+        else:
+            self.Ops = value
+
+        tree.Node.append([self.NodeID, self.NodeType, self.Ops, self.LeftNodeID, self.RightNodeID, self.FaceValue, self.FaceColor])
+
+
+
+def build_ast(formula):
+    '''
+    建立语法树
+    :param formula: 表达式，表达式的花色
+    :return: 建立好的语法树
+    '''
+    # 去掉空格
+
+    global tree, cur
+    try:
+        expr, color = formula
+    except:
+        expr = formula
+        color = ['方块'] * 20
+    if len(expr) == 0:
+        tk.messagebox.showinfo('', '表达式不存在')
+        return
+    cur = 0
+    tree.__init__()
+
+    expr = expr.replace(' ', '')
+
+    # 将所有数字和符号分离出来
+    tokens = re.findall(r'\d+|[()+\-*/^.]', expr)
+    i = 0
+    for token in tokens:
+        if tokens[i] == '.':
+
+            tokens[i - 1] = tokens[i - 1] + tokens[i] + tokens[i + 1]
+            del tokens[i: i + 2]
+        i += 1
+
+    # 定义优先级
+    precedence = {'+': 1, '-': 1, '*': 2, '/': 2, '^': 3}
+
+    # 创建一个操作符栈和一个节点栈
+    op_stack = []
+    node_stack = []
+
+    color_cur = 0
+    # 遍历所有 token
+    for token in tokens:
+        if token.isdigit():
+            # print(cur, color[cur])
+            node_stack.append(TreeNode('Value', int(token), color=color[color_cur]))
+            color_cur += 1
+        elif token.count('.') == 1:
+            node_stack.append(TreeNode('Value', float(token), color=color[color_cur]))
+            color_cur += 1
+        elif token in '+-*/^':
+            while op_stack and op_stack[-1] != '(' and precedence[token] <= precedence[op_stack[-1]]:
+                op = op_stack.pop()
+                right = node_stack.pop()
+                left = node_stack.pop()
+                node_stack.append(TreeNode('Operator', op, left, right))
+            op_stack.append(token)
+        elif token == '(':
+            op_stack.append(token)
+        elif token == ')':
+            while op_stack and op_stack[-1] != '(':
+                op = op_stack.pop()
+                right = node_stack.pop()
+                left = node_stack.pop()
+                node_stack.append(TreeNode('Operator', op, left, right))
+            op_stack.pop()
+
+    # 处理剩下的操作符
+    while op_stack:
+        op = op_stack.pop()
+        right = node_stack.pop()
+        left = node_stack.pop()
+        node_stack.append(TreeNode('Operator', op, left, right))
+
+    # 返回抽象语法树的根节点
+    tree.rootID = node_stack[0].NodeID
+    # print(tree.rootID)
+    # print(tree.Node)
+    return node_stack[0]
+
+
+def print_ast(node:TreeNode, prefix='', is_left=True):
+    if node:
+        if node.NodeType == 'Value':
+            s = str(node.FaceValue)
+        else:
+            s = str(node.Ops)
+        print(prefix + ('├── ' if is_left else '└── ') + s)
+        print_ast(node.left, prefix + ('│   ' if is_left else '    '), True)
+        print_ast(node.right, prefix + ('│   ' if is_left else '    '), False)
+
+
+
+
+
+
+if __name__ == '__main__':
+    expr = "(34-13.121)*2*6"
+    # ast = build_ast(expr)
+    # print_ast(ast)
+    # print(tree.Node)
+    class Frame_Tree:
+        # def Frame_tree():
+        def __init__(self, window):
+            self.Tree_root = tk.Frame(window, relief="groove", width=610, height=400)
+            self.Tree_root.place(x=50, y=250)  # 树的显示
+
+            self.Tree_cv = tk.Canvas(self.Tree_root, width=610, height=400, bg='#b7bcc0')
+            self.Tree_cv.place(x=0, y=0)
+            # Tree_cv.create_rectangle(10, 10, 600, 290, width=10, outline='#ff9933')
+
+            bot = tk.Button(self.Tree_root, text='添加运算节点', bg='#cca583', fg='black', )
+            bot.place(x=500, y=40, width=80, height=30)
+            bot = tk.Button(self.Tree_root, text='添加数值节点', bg='#cca583', fg='black', )
+            bot.place(x=500, y=75, width=80, height=30)
+            bot = tk.Button(self.Tree_root, text='改变运算输入', bg='#cca583', fg='black', )
+            bot.place(x=500, y=110, width=80, height=30)
+            bot = tk.Button(self.Tree_root, text='改变节点运算', bg='#cca583', fg='black', )
+            bot.place(x=500, y=145, width=80, height=30)
+            bot = tk.Button(self.Tree_root, text='数值节点交换', bg='#cca583', fg='black', )
+            bot.place(x=500, y=180, width=80, height=30)
+            bot = tk.Button(self.Tree_root, text='产生表达式', bg='#cca583', fg='black', command=lambda: self.Aexp())
+            bot.place(x=500, y=215, width=80, height=30)
+            # bot = tk.Button(self.Tree_root, text='计算', bg='#cca583', fg='black', command=lambda: tree.calculate(tree.Node[tree.rootID]))
+            # bot.place(x=500, y=250, width=80, height=30)
+
+
+
+
+        def clear(self):
+            self.Tree_cv.delete('all')
+            tree.Node = []
+            tree.rootID = None
+
+        def Aexp(self):
+            entry.delete(0, "end")
+            print(tree.Aexp(tree.Node[tree.rootID]))
+            entry.insert("end", tree.Aexp(tree.Node[tree.rootID]))
+            label2 = tk.Label(window, text=f'= {float(tree.calculate(tree.Node[tree.rootID])):.2f}',
+                              font=('宋体', 15, 'bold'), width=30, height=10,
+                              # 设置填充区距离、边框宽度和其样式（凹陷式）
+                              borderwidth=5, relief="sunken")
+            label2.place(x=240, y=160, width=60, height=50)
+
+        def show_tree(self, ss):
+            # 清空画布
+            self.Tree_cv.delete('all')
+            build_ast(ss)
+            for i in range(len(tree.Node)):
+                tree.deepth.append(-1)
+            # print(tree.Node)
+            # print(tree.deepth)
+            # 格式化树节点的深度
+            tree.deep()
+            # print(tree.deepth)
+
+            # 初始化节点数与深度
+            dept, nums = -1, 0
+            for i in range(len(tree.deepth)):
+                dept = max(dept, tree.deepth[i])
+                tree.place.append((None, None))
+                if tree.deepth[i] == 0:
+                    nums += 1
+            # print(dept, nums)
+
+            tree_length = 500
+            tree_height = 400
+            dx = tree_length // (nums + 1)
+            dy = tree_height // (dept + 2)
+            bc = 40
+            # 若为数字节点
+            cur = 0
+            for i in range(len(tree.deepth)):
+                if tree.deepth[i] == 0:
+                    cur += 1
+                    tree.place[i] = (cur * dx, tree_height - dy)
+                    self.Tree_cv.create_rectangle(tree.place[i][0] - bc / 2, tree.place[i][1] - bc / 2,
+                                                  tree.place[i][0] + bc / 2,
+                                                  tree.place[i][1] + bc / 2, fill='white', width=0)
+                    self.Tree_cv.create_text(tree.place[i][0], tree.place[i][1], text=str(tree.Node[i][5]),
+                                             font=('宋体', 15, 'bold'), anchor='center')
+
+            for d in range(dept):
+                cur_d = d + 1
+                for i in range(len(tree.deepth)):
+                    if tree.deepth[i] == cur_d:
+                        lnode = tree.place[tree.Node[i][3]]
+                        rnode = tree.place[tree.Node[i][4]]
+                        node = ((lnode[0] + rnode[0]) / 2, tree_height - (cur_d + 1) * dy)
+                        self.Tree_cv.create_line(lnode[0], lnode[1] - bc / 2, node[0], node[1] + bc / 2, fill='#1ffbe9',
+                                                 width=2)
+                        self.Tree_cv.create_line(rnode[0], rnode[1] - bc / 2, node[0], node[1] + bc / 2, fill='#1ffbe9',
+                                                 width=2)
+                        tree.place[i] = node
+                        self.Tree_cv.create_rectangle(tree.place[i][0] - bc / 2, tree.place[i][1] - bc / 2,
+                                                      tree.place[i][0] + bc / 2, tree.place[i][1] + bc / 2,
+                                                      fill='white', width=0)
+                        self.Tree_cv.create_text(tree.place[i][0], tree.place[i][1], text=str(tree.Node[i][2]),
+                                                 font=('宋体', 15, 'bold'), anchor='center')
+    window = tk.Tk()
+    var = tk.StringVar()
+    var2 = tk.StringVar()
+    width = 700
+    height = 700  # 窗口大小
+    screen_width = window.winfo_screenwidth()  # winfo方法来获取当前电脑屏幕大小
+    screen_height = window.winfo_screenheight()
+    x = int((screen_width - width) / 2)
+    y = int((screen_height - height) / 2) - 40
+    size = '{}x{}+{}+{}'.format(width, height, x, y)
+    window.geometry(size)
+
+
+    # 基本组件显示
+    cv = tk.Canvas(window, width=380, height=136, bg='#FFFFCC')
+    cv.place(x=100, y=3)
+    F = Frame_Tree(window)
+    but = tk.Button(window, text='出题', bg='#ffffcc', fg='black', command=lambda: show_card())
+    but.place(x=500, y=20, width=100, height=50, )
+    but2 = tk.Button(window, text='换牌', bg='#ffffcc', fg='black', )
+    but2.place(x=500, y=80, width=100, height=50, )
+
+    entry = tk.Entry(window, show=None, font=('宋体', 15, 'bold'))
+    entry.place(x=50, y=160, width=180, height=50)
+    label2 = tk.Label(window, text='= 24', font=('宋体', 15, 'bold'), width=30, height=10,
+                      # 设置填充区距离、边框宽度和其样式（凹陷式）
+                      borderwidth=5, relief="sunken")
+    but4 = tk.Button(window, text='计算', bg='#ffffcc', fg='black', command=lambda: show_result(entry.get(), sz))
+    but4.place(x=315, y=165, width=50, height=40, )
+    label2.place(x=240, y=160, width=60, height=50)
+
+    but3 = tk.Button(window, text='自动求解', bg='#ffffcc', fg='black', command=lambda: show_answer())
+    but3.place(x=250, y=210, width=120, height=40, )
+    but3 = tk.Button(window, text='所有答案', bg='#ffffcc', fg='black', command=lambda: show_all())
+    but3.place(x=410, y=210, width=120, height=40, )
+
+    but5 = tk.Button(window, text='画树', bg='#ffffcc', fg='black', command=lambda: F.show_tree(expr))
+    but5.place(x=80, y=210, width=120, height=40, )
+
+
+
+    # cv1 = tk.Canvas(window, width=380, height=90, bg='#FFFFCC')
+    # cv1.place(x=100, y=200)
+
+    window.mainloop()
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diff --git a/data.py b/data.py
new file mode 100644
index 0000000..25c5a0b
--- /dev/null
+++ b/data.py
@@ -0,0 +1,96 @@
+# -*- encoding: utf-8 -*-
+"""
+ @Author: packy945
+ @FileName: data.py
+ @DateTime: 2023/5/11 14:36
+ @SoftWare: PyCharm
+"""
+from itertools import permutations
+import random
+import tkinter as tk
+
+MARK = '#ff0000'
+NOMARK = '#cccccc'
+
+
+class Aexp:
+    def __init__(self, a, b, c, d):
+        self.Aexp_cur = 0
+        self.num = 0
+        self.card = [a, b, c, d]
+        # print(self.card)
+        self.answer = []
+        self.Color = []
+        self.Aexp(a, b, c, d)
+
+    def refresh(self, a, b, c, d):
+        self.Aexp_cur = 0
+        self.num = 0
+        self.card = [a, b, c, d]
+        # print(self.card)
+        self.answer = []
+        self.Color = []
+        self.Aexp(a, b, c, d)
+
+    def Aexp(self, one, two, three, four):
+        '''
+        输入四个数，求24点
+        :param one:
+        :param two:
+        :param three:
+        :param four:
+        :return: 求解24点结果。若无法得出则返回“无法求得结果”
+        '''
+        self.Aexp_cur = 0
+        my_list = [one, two, three, four]
+        result = [c for c in permutations(my_list, 4)]
+        list2 = []  # 算出24的排列组合的列表
+        symbols = ["+", "-", "*", "/"]
+        flag = False
+        for one, two, three, four in result:
+            for s1 in symbols:
+                for s2 in symbols:
+                    for s3 in symbols:
+                        express = ["(({0}{1}{2}){3}{4}){5}{6}".format(one[1], s1, two[1], s2, three[1], s3, four[1]),
+                                   "({0}{1}{2}){3}({4}{5}{6})".format(one[1], s1, two[1], s2, three[1], s3, four[1]),
+                                   "({0}{1}({2}{3}{4})){5}{6}".format(one[1], s1, two[1], s2, three[1], s3, four[1]),
+                                   "{0}{1}(({2}{3}{4}){5}{6})".format(one[1], s1, two[1], s2, three[1], s3, four[1]),
+                                   "{0}{1}({2}{3}({4}{5}{6}))".format(one[1], s1, two[1], s2, three[1], s3, four[1])]
+                            # if str(one) + str(two) + str(three) + str(four) == "8383":
+                            #     print(express)
+                        for e in express:
+                            try:
+                                if round(eval(e), 6) == 24:
+                                    e = del_parentheses(e)
+                                    list2.append(e)
+                                    self.Color.append([one[0], two[0], three[0], four[0]])
+                                    flag = True
+                            except ZeroDivisionError:
+                                pass
+
+
+        if flag:
+            self.answer = list2
+            self.num = len(list2)
+            # return list3
+
+        else:
+            self.answer = ["无法得出24点"]
+            self.Color.append(None)
+            self.num = 0
+
+
+#删除最外层括号
+def del_parentheses(e):
+    if e[0] == '(' and e[-1] == ')':
+        try:
+            eval(e[1:len(e)-1])
+        except:
+            pass
+        else:
+            if round(eval(e[1:len(e)-1]),6) == 24:
+                return e[1:len(e)-1]
+    return e
+
+
+
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..67ab916
--- /dev/null
+++ b/main.py
@@ -0,0 +1,781 @@
+# -*- encoding: utf-8 -*-
+"""
+ @Author: packy945
+ @FileName: main.py
+ @DateTime: 2023/5/11 11:34
+ @SoftWare: PyCharm
+"""
+from data import *
+import tkinter.messagebox
+from collections import Counter
+from PIL import Image, ImageTk
+from TreeNode import *
+import ttkbootstrap as ttk
+from ttkbootstrap.constants import *
+from ttkbootstrap import *
+
+sz = []
+A = Aexp([0, 0, 0], [0, 0, 0], [0, 0, 0], [0, 0, 0])
+img_open = []
+img_png = []
+
+def change_card():
+    card = []
+    for n in tree.Node:
+        if n[1] == 'Value':
+            if n[5] == 1:
+                card.append([n[6], 'A'])
+            else:
+                card.append([n[6], str(n[5])])
+    # print(card)
+    if len(card) == 4:
+        show(card)
+    else:
+        tk.messagebox.showinfo('', '无法显示卡牌')
+
+def TorF(flag):
+    '''
+    显示答案是否正确
+    :param flag: 答案是否正确
+    :return:
+    '''
+    if flag == 1:
+        clo1 = MARK
+        clo2 = NOMARK
+    elif flag == 0:
+        clo1 = NOMARK
+        clo2 = NOMARK
+    else:
+        clo1 = NOMARK
+        clo2 = MARK
+
+
+    label3 = tk.Label(window, text='√', fg=clo1, font=('宋体', 10, 'bold italic'), borderwidth=5, relief="sunken")
+    label4 = tk.Label(window, text='×', fg=clo2, font=('宋体', 10, 'bold italic'), borderwidth=5, relief="sunken")
+    label3.place(x=625, y=240, width=30, height=25)
+    label4.place(x=625, y=270, width=30, height=25)
+
+def ans_cal(ans = None):
+    if not ans:
+        label2 = tk.Label(window, text='=   ?', font=('楷体', 18, 'bold'), width=30, height=10,
+                      # 设置填充区距离、边框宽度和其样式（凹陷式）
+                      borderwidth=5, relief="sunken", anchor='w')
+    else:
+        label2 = tk.Label(window, text=f'={ans}', font=('楷体', 18, 'bold'), width=30, height=10,
+                      # 设置填充区距离、边框宽度和其样式（凹陷式）
+                      borderwidth=5, relief="sunken", anchor='w')
+    label2.place(x=425, y=240, width=100, height=50)
+
+def init():
+    ans_cal()
+    all_ans["state"] = 'disable'
+    entry.delete(0, "end")
+    F.clear()
+    TorF(0)
+
+
+#展示卡牌
+def show_card():
+    '''
+    随机展示四张卡片
+    :return:
+    '''
+    global sz  # 全局变量存放点数
+    sz = []
+    # 清空卡牌列表
+    init()
+    # 清空中间的表达式输入串Aexp, 同时清空中间的表达式输入框、结果显示框和结果正确与错误标志
+    kp_list = []
+    size_list = ['1', '2', '3', '4', '5', '6', '7', '8', '9']
+    col_list = ["Club", "Diamond", "Spade", "Heart"]
+    sz_list = ['a', 'j', 'q', 'k']
+
+    for i in range(4):
+        kp_list.append([random.choice(col_list), random.choice(size_list)])   # 随机生成花色以及点数
+        sz.append([kp_list[i][0], kp_list[i][1], kp_list[i][1]])
+        if kp_list[i][-1] == '1':
+            kp_list[i][-1] = random.choice(sz_list)
+            sz[i][2] = kp_list[i][-1]
+    show(kp_list)
+    global A
+    A.refresh(sz[0], sz[1], sz[2], sz[3])
+    cv.update()
+
+def show(kp_list):
+    #  根据花色以及点数显示卡牌
+    # cv = tk.Canvas(window, width=380, height=136, bg='#FFFFCC')  # 分配位置
+    # cv.place(x=100, y=3)
+    global img_open, img_png
+    img_open = []
+    img_png = []
+    cv.delete('all')
+    i = 0       #卡牌位置偏移量
+    for k in range(4):
+        img_open.append(
+            Image.open("card/" + kp_list[k][0] + "/" + kp_list[k][0] + kp_list[k][1] + '.png').resize((90, 130)))
+        img_png.append(ImageTk.PhotoImage(img_open[k]))
+        cv.create_image(50 + i, 70, image=img_png[k])
+        i += 95
+    '''
+    img_open.append(Image.open("card/" + kp_list[0][0] + "/" + kp_list[0][0] + kp_list[0][1] + '.png').resize((90, 130)))
+    img_png.append(ImageTk.PhotoImage(img_open[0]))
+    cv.create_image(50 + i, 70, image=img_png[0])
+    
+    # img_open = Image.open("card/" + kp_list[0][0] + "/" + kp_list[0][0] + kp_list[0][1] + '.png').resize((90, 130))
+    # img_png = ImageTk.PhotoImage(img_open)
+    # cv.create_image(50 + i, 70, image=img_png)
+
+    i += 95
+    img_open.append(
+        Image.open("card/" + kp_list[1][0] + "/" + kp_list[1][0] + kp_list[1][1] + '.png').resize((90, 130)))
+    img_png.append(ImageTk.PhotoImage(img_open[1]))
+    cv.create_image(50 + i, 70, image=img_png[1])
+    
+    # img_open1 = Image.open("card/" + kp_list[1][0] + "/" + kp_list[1][0] + kp_list[1][1] + '.png').resize((90, 130))
+    # img_png1 = ImageTk.PhotoImage(img_open1)
+    # cv.create_image(50 + i, 70, image=img_png1)
+    i += 95
+    
+    img_open2 = Image.open("card/" + kp_list[2][0] + "/" + kp_list[2][0] + kp_list[2][1] + '.png').resize((90, 130))
+    img_png2 = ImageTk.PhotoImage(img_open2)
+    cv.create_image(50 + i, 70, image=img_png2)
+    i += 95
+    img_open3 = Image.open("card/" + kp_list[3][0] + "/" + kp_list[3][0] + kp_list[3][1] + '.png').resize((90, 130))
+    img_png3 = ImageTk.PhotoImage(img_open3)
+    cv.create_image(50 + i, 70, image=img_png3)
+    '''
+    # window.mainloop()
+    cv.update()
+
+
+
+#展示结果
+def show_result(ss, sz):
+    '''
+    展示计算结果
+    :param ss: 输入框中的表达式
+    :param sz: 题中给的卡牌数字
+    :return:
+    '''
+    if len(sz) != 4:
+        tk.messagebox.showinfo('', '未出题')
+        return
+    char_list = []     #用于存放算式中的数字
+    for i in range(len(ss)):
+        if ss[i]>'0' and ss[i]<='9':
+            char_list.append(ss[i])
+    a = Counter(char_list)    #计数函数Counter
+    b = Counter([sz[0][1], sz[1][1], sz[2][1], sz[3][1]])
+    if len(char_list) != 4:
+        tk.messagebox.showinfo('', '请输入符合所给卡牌点数的可运算表达式')
+    elif a != b:
+        tk.messagebox.showinfo('', '你的表达式中的点数与所给卡牌点数不同')
+    else:
+        try:
+            ans = eval(ss)
+        except:
+            tk.messagebox.showinfo('', '表达式不可运算')
+        else:
+            ans_cal(int(ans))
+            #设置颜色
+            if ans == 24:
+                TorF(1)
+            else:
+                TorF(-1)
+
+
+#展示一个可行算式
+def show_answer():
+    # 自动求解
+    if len(sz) != 4:
+        tk.messagebox.showinfo('', '未出题')
+        return
+    try:
+        answer = (A.answer[0], A.Color[0])
+        A.Aexp_cur = 0
+    except:
+        tk.messagebox.showinfo('', '出错')
+        return
+    # print()
+    # print(answer)
+    if A.num == 0:
+        entry.delete(0, "end")
+        tk.messagebox.showinfo('', '无法得出24点')
+    else:
+        entry.delete(0, "end")
+        entry.insert("end", answer[0])
+        '''
+        Treenode = Decomposition(answer)
+        label_answer = tk.Label(window,text=answer+'  '+str(Treenode),bg="#FFFFCC",fg="black")
+        label_answer.place(x=105,y=210)
+        '''
+        F.show_tree(answer)
+    if A.num > 1:
+        all_ans["state"] = 'normal'
+    else:
+        all_ans["state"] = 'disable'
+
+
+def show_next():
+    global A
+    A.Aexp_cur += 1
+    answer = (A.answer[A.Aexp_cur], A.Color[A.Aexp_cur])
+    entry.delete(0, "end")
+    entry.insert("end", answer[0])
+    F.show_tree(answer)
+
+    if A.Aexp_cur == A.num - 1:
+        all_ans["state"] = 'disable'
+        tk.messagebox.showinfo('', '已显示所有答案')
+
+
+
+#显示所有答案，通过一个新窗口
+def show_all():
+    global Aexp_cur
+
+    answer = Aexp(int(sz[0][1]), int(sz[1][1]), int(sz[2][1]), int(sz[3][1]))
+    # Tree_all = []
+    # for item in answer:
+        # Tree_all.append(Decomposition(item))
+    root = tk.Tk()
+    # root.geometry('500x300')
+    width = 500
+    height = 300
+    screen_width = window.winfo_screenwidth()  # winfo方法来获取当前电脑屏幕大小
+    screen_height = window.winfo_screenheight()
+    x = int((screen_width - width) / 2)
+    y = int((screen_height - height) / 2) - 40
+    size = '{}x{}+{}+{}'.format(width, height, x, y)
+    root.geometry(size)
+    b1 = tk.Scrollbar(root, width=40)
+    # b1.place(x=410,y=200)
+    b1.pack(side=tk.RIGHT, fill=tk.Y)
+    b2 = tk.Listbox(root, yscrollcommand=b1.set,width=100)
+    for i in range(len(answer)):
+        b2.insert(tk.END,answer[i])
+    b2.pack(side=tk.LEFT, fill=tk.BOTH)
+    # b2.place(x=520,y=100)
+    b1.config(command=b2.yview)
+    root.mainloop()
+
+def BUTs():
+    global all_ans
+    but = tk.Button(window, text='出题', bg='#ffffcc', fg='black', command=lambda: show_card())
+    but.place(x=500, y=20, width=100, height=50, )
+    but2 = tk.Button(window, text='换牌', bg='#ffffcc', fg='black', command=lambda: change_card())
+    but2.place(x=500, y=80, width=100, height=50, )
+
+    but4 = tk.Button(window, text='计算', bg='#ffffcc', fg='black', command=lambda: show_result(entry.get(), sz))
+    but4.place(x=530, y=240, width=80, height=50, )
+
+    but3 = tk.Button(window, text='自动求解', bg='#ffffcc', fg='black', command=lambda: show_answer())
+    but3.place(x=250, y=210, width=120, height=40, )
+
+    all_ans = tk.Button(window, text='所有答案', bg='#ffffcc', fg='black', command=lambda: show_next(), state='disable')
+    all_ans.place(x=410, y=210, width=120, height=40, )
+
+    but5 = tk.Button(window, text='画树', bg='#ffffcc', fg='black', command=lambda: F.show_tree(entry.get()))
+    but5.place(x=80, y=210, width=120, height=40, )
+
+def left2(event):
+    # 查找鼠标左键按下时位置是否在某个牌上
+    # print(event.x, event.y)
+    # if not A.card
+    left = [5, 100, 195, 290]
+    right = [95, 190, 285, 380]
+    up = 5
+    down = 135
+    '''
+    for i in range(4):
+        if up <= event.y <= down and right[i] >= event.x >= left[i]:
+            print(i + 1)
+            print(A.card[i])
+    '''
+    # 添加数值节点
+    if F.mode == 2:
+        for cur in range(4):
+            if up <= event.y <= down and right[cur] >= event.x >= left[cur]:
+                # 检查数值节点是否已存在
+                a = []
+                b = []
+                for card in A.card:
+                    a.append([card[0], int(card[1])])
+                for node in tree.Node:
+                    if node[1] == 'Value':
+                        b.append([node[6], node[5]])
+                c = a.copy()
+
+                for x in b:
+                    for i in range(len(c)):
+                        try:
+                            c[i]
+                        except:
+                            break
+
+                        if x[0] == c[i][0] and x[1] == c[i][1]:
+                            del c[i]
+                flag = 0
+                for l in c:
+                    # 若所选card还没有对应的节点，则新建一个数值节点
+                    if not flag and l[0] == A.card[cur][0] and l[1] == int(A.card[cur][1]):
+                        tree.Node.append([len(tree.Node), 'Value', None, None, None, int(A.card[cur][1]), A.card[cur][0]])
+                        flag = 1
+
+                if not flag:
+                    # 若所选card已经存在，则进行警告
+                    tk.messagebox.showinfo('', '所选card已存在')
+                # 操作完成，进行复位
+                F.mode = 0
+                F.tips = ''
+                tree.remark()
+                F.draw()
+    # 改变运算输入的第二步
+    elif F.mode == 6:
+        for cur in range(4):
+            # 若单击了一张card
+            if up <= event.y <= down and right[cur] >= event.x >= left[cur]:
+
+                # 标记的节点序号
+                mark = -1
+                for i in range(len(tree.mark)):
+                    if tree.mark[i] == 1:
+                        mark = i
+
+                flag = 0
+
+                for now in range(len(tree.Node)):
+                    # 若单击的card已经存在一个数值节点
+                    if tree.Node[now][6] == A.card[cur][0] and tree.Node[now][5] == int(A.card[cur][1]):
+                        # 则将这两个数值节点进行交换
+                        tree.Node[now][5] = tree.Node[mark][5]
+                        tree.Node[now][6] = tree.Node[mark][6]
+
+                        tree.Node[mark][5] = int(A.card[cur][1])
+                        tree.Node[mark][6] = A.card[cur][0]
+                        flag = 1
+
+                if not flag:
+                    # 若单击的card没有存在数值节点，则将该节点改为这张card
+                    tree.Node[mark][5] = int(A.card[cur][1])
+                    tree.Node[mark][6] = A.card[cur][0]
+                # 操作完毕，进行复位
+                F.mode = 0
+                F.tips = ''
+                tree.remark()
+                F.draw()
+
+
+class Frame_Tree:
+    def __init__(self, window):
+        self.opt = '+'
+        self.mode = 0
+
+        '''
+        当前操作：
+        0 无
+        1 添加运算节点
+        2 添加数值节点
+        3 改变运算输入
+        4 改变节点运算
+        5 数值节点交换
+        '''
+        self.tips = ''
+        self.Tree_root = tk.Frame(window, relief="groove", width=610, height=400)
+        self.Tree_root.place(x=50, y=250)  # 树的显示
+
+        self.Tree_cv = tk.Canvas(self.Tree_root, width=610, height=400, bg='#b7bcc0')
+        self.Tree_cv.place(x=0, y=0)
+        # Tree_cv.create_rectangle(10, 10, 600, 290, width=10, outline='#ff9933')
+
+        self.opt1 = tk.Button(self.Tree_root, text='+', bg='#cca583', fg='black', command=lambda: self.set_opt(1))
+        self.opt1.place(x=500, y=20, width=30, height=30)
+        self.opt2 = tk.Button(self.Tree_root, text='-', bg='#cca583', fg='black', command=lambda: self.set_opt(2))
+        self.opt2.place(x=535, y=20, width=30, height=30)
+        self.opt3 = tk.Button(self.Tree_root, text='*', bg='#cca583', fg='black', command=lambda: self.set_opt(3))
+        self.opt3.place(x=500, y=55, width=30, height=30)
+        self.opt4 = tk.Button(self.Tree_root, text='/', bg='#cca583', fg='black', command=lambda: self.set_opt(4))
+        self.opt4.place(x=535, y=55, width=30, height=30)
+
+        self.set_opt(1)
+
+        dy = 50
+
+        bot = tk.Button(self.Tree_root, text='添加运算节点', bg='#cca583', fg='black', command=lambda: self.add_opt())
+        bot.place(x=500, y=40 + dy, width=80, height=30)
+        bot = tk.Button(self.Tree_root, text='添加数值节点', bg='#cca583', fg='black', command=lambda: self.add_num())
+        bot.place(x=500, y=75 + dy, width=80, height=30)
+        bot = tk.Button(self.Tree_root, text='改变运算输入', bg='#cca583', fg='black', command=lambda: self.change_num())
+        bot.place(x=500, y=110 + dy, width=80, height=30)
+        bot = tk.Button(self.Tree_root, text='改变节点运算', bg='#cca583', fg='black', command=lambda: self.change_opt())
+        bot.place(x=500, y=145 + dy, width=80, height=30)
+        bot = tk.Button(self.Tree_root, text='数值节点交换', bg='#cca583', fg='black', command=lambda: self.change_node())
+        bot.place(x=500, y=180 + dy, width=80, height=30)
+        bot = tk.Button(self.Tree_root, text='产生表达式', bg='#cca583', fg='black', command=lambda: self.Aexp())
+        bot.place(x=500, y=215 + dy, width=80, height=30)
+        bot = tk.Button(self.Tree_root, text='清空画布', bg='#cca583', fg='black', command=lambda: self.clear())
+        bot.place(x=500, y=250 + dy, width=80, height=30)
+        # bot = tk.Button(self.Tree_root, text='计算', bg='#cca583', fg='black', command=lambda: tree.calculate(tree.Node[tree.rootID]))
+        # bot.place(x=500, y=250, width=80, height=30)
+        self.Tree_cv.bind('<Button-1>', self.left1)
+        self.draw()
+
+
+    def set_opt(self, x):
+        # self.opt1["state"] = "disable"
+        # exec('self.opt1["state"] = "disable"')
+        opt = ['+', '-', '*', '/']
+        self.opt = opt[x - 1]
+        for i in range(4):
+            exec('self.opt' + str(i + 1) + '["state"] = "normal"')
+            exec('self.opt' + str(i + 1) + "['bg']='#cca583'")
+            exec('self.opt' + str(i + 1) + "['fg']='black'")
+
+        exec('self.opt' + str(x) + "['state']='disable'")
+        exec('self.opt' + str(x) + "['bg']='#8f735c'")
+        exec('self.opt' + str(x) + "['fg']='white'")
+        # 8f735c
+        self.draw()
+
+
+    def add_opt(self):
+        tree.remark()
+        self.tips = '请选择两个节点'
+        self.mode = 1
+        self.draw()
+
+    def change_node(self):
+        tree.remark()
+        self.tips = '请选择两个数值节点'
+        self.mode = 5
+        self.draw()
+
+    def change_opt(self):
+        tree.remark()
+        self.tips = '请选择一个运算节点'
+        self.mode = 4
+        self.draw()
+
+    def add_num(self):
+        tree.remark()
+        self.tips = '请选择一张card'
+        self.mode = 2
+        self.draw()
+
+    def change_num(self):
+        tree.remark()
+        self.tips = '请选择一个数值节点'
+        self.mode = 3
+        self.draw()
+
+    def left1(self, event):
+        # 查找鼠标左键按下时位置是否在某个节点内，并根据当前操作模式进行反馈
+        '''
+        print(event.x, event.y)
+        i = 0
+        print(tree.place)
+
+        for T in tree.place:
+            if abs(event.x - T[0]) <= tree.bc / 2 and abs(event.y - T[1]) <= tree.bc / 2:
+                # tree.mark[i] = not tree.mark[i]
+                print(tree.Node[i])
+
+            i += 1
+        '''
+        # 无操作
+        if self.mode == 0:
+            return
+        # 添加运算节点
+        elif self.mode == 1:
+            i = 0
+            for T in tree.place:
+                if abs(event.x - T[0]) <= tree.bc / 2 and abs(event.y - T[1]) <= tree.bc / 2:
+                    # 标记点击的节点
+                    tree.mark[i] = not tree.mark[i]
+                i += 1
+
+            nodes = []
+            for i in range(len(tree.Node)):
+                if tree.mark[i] == 1:
+                    nodes.append(i)
+
+            if len(nodes) == 2:
+                # 若已经选择两个节点
+                tree.check()
+                # 检查节点是否合法
+                if tree.ck[nodes[0]] == 1 and tree.ck[nodes[1]] == 1:
+                    # 若节点合法，则添加新运算节点并将其设置为根节点
+                    ID = len(tree.Node)
+                    tree.Node.append([ID, 'Operator', self.opt, nodes[0], nodes[1], None, None])
+                    tree.rootID = ID
+                else:
+                    # 若节点不合法则显示警告
+                    tk.messagebox.showinfo('', '所选节点不合法')
+                # 添加运算节点操作结束
+                self.mode = 0
+                self.tips = ''
+                tree.remark()
+        # 添加数值节点
+        elif self.mode == 2:
+            # 添加数值节点无需点击节点
+            pass
+        # 改变运算输入
+        elif self.mode == 3:
+            i = 0
+            flag = 0
+            for T in tree.place:
+                if abs(event.x - T[0]) <= tree.bc / 2 and abs(event.y - T[1]) <= tree.bc / 2:
+                    # 若点击节点为数值节点，则标记
+                    if tree.Node[i][1] == 'Value':
+                        tree.mark[i] = 1
+                        flag = 1
+                    # 若点击节点为运算节点，则弹窗警告
+                    else:
+                        tk.messagebox.showinfo('', '所选节点不合法')
+                        flag = 1
+                i += 1
+
+            if flag:
+                # 选择节点完成过后，还需选择card
+                self.mode = 6
+                self.tips = '请选择一张card'
+                self.draw()
+        # 改变节点运算
+        elif self.mode == 4:
+            i = 0
+            flag = 0
+            for T in tree.place:
+                if abs(event.x - T[0]) <= tree.bc / 2 and abs(event.y - T[1]) <= tree.bc / 2:
+                    # 检查节点是否合法，若选择的是运算节点，则进行运算符的改变
+                    if tree.Node[i][1] == 'Operator':
+                        tree.Node[i][2] = self.opt
+                        flag = 1
+                    # 若选择的是数值节点，则弹窗警告
+                    else:
+                        tk.messagebox.showinfo('', '所选节点不合法')
+                        flag = 1
+                i += 1
+
+            if flag:
+                # 操作完毕，进行复位
+                self.mode = 0
+                self.tips = ''
+                tree.remark()
+        # 数值节点交换
+        elif self.mode == 5:
+            i = 0
+            for T in tree.place:
+                # 标记选择的节点
+                if abs(event.x - T[0]) <= tree.bc / 2 and abs(event.y - T[1]) <= tree.bc / 2:
+                    tree.mark[i] = not tree.mark[i]
+
+                i += 1
+
+            nodes = []
+            for i in range(len(tree.Node)):
+                if tree.mark[i] == 1:
+                    nodes.append(i)
+
+            if len(nodes) == 2:
+                # 已经选择两个节点
+                if tree.Node[nodes[0]][1] == 'Value' and tree.Node[nodes[1]][1] == 'Value':
+                    # 若选择的节点都是数值节点，则交换两个节点的数值与花色
+                    Value = tree.Node[nodes[0]][5]
+                    Color = tree.Node[nodes[0]][6]
+                    tree.Node[nodes[0]][5] = tree.Node[nodes[1]][5]
+                    tree.Node[nodes[0]][6] = tree.Node[nodes[1]][6]
+                    tree.Node[nodes[1]][5] = Value
+                    tree.Node[nodes[1]][6] = Color
+                else:
+                    # 若选择的不是数值节点，则进行警告
+                    tk.messagebox.showinfo('', '所选节点不合法')
+                # 操作结束，复位
+                self.mode = 0
+                self.tips = ''
+                tree.remark()
+        self.draw()
+
+
+    def clear(self):
+        self.Tree_cv.delete('all')
+        tree.Node = []
+        tree.rootID = None
+
+    def Aexp(self):
+        entry.delete(0, "end")
+        try:
+            exp = tree.Aexp(tree.Node[tree.rootID])
+        except:
+            tk.messagebox.showinfo('', '语法树不合法')
+            return
+        entry.insert("end", exp)
+        # ans = int(tree.calculate(tree.Node[tree.rootID]))
+        ans = float(tree.calculate(tree.Node[tree.rootID]))
+        ans_cal(f'{float(tree.calculate(tree.Node[tree.rootID])):.2f}')
+        if ans == 24:
+            TorF(1)
+        else:
+            TorF(-1)
+
+        char_list = []  # 用于存放算式中的数字
+        for i in range(len(exp)):
+            if exp[i] > '0' and exp[i] <= '9':
+                char_list.append(exp[i])
+        a = Counter(char_list)  # 计数函数Counter
+        b = Counter([sz[0][1], sz[1][1], sz[2][1], sz[3][1]])
+        if len(char_list) != 4:
+            tk.messagebox.showinfo('', '请输入符合所给卡牌点数的可运算表达式')
+
+    def show_tree(self, ss):
+        # 清空画布
+        self.Tree_cv.delete('all')
+        if len(ss) == 0:
+            tk.messagebox.showinfo('', '表达式不存在')
+            return
+
+        build_ast(ss)
+        self.draw()
+
+
+    def draw(self):
+        self.Tree_cv.delete('all')
+        mode = ['无', '添加运算节点', '添加数值节点', '改变运算输入', '改变节点运算', '数值节点交换', '添加数值节点']
+        lab1 = tk.Label(self.Tree_cv, text='当前操作:', bg='#b7bcc0', font=('宋体', 14, 'bold'), borderwidth=5, anchor='w')
+        lab1.place(x=30, y=10, width=90, height=30)
+        lab2 = tk.Label(self.Tree_cv, text=mode[self.mode], bg='#b7bcc0', font=('宋体', 14, 'bold'), borderwidth=5, anchor='w')
+        lab2.place(x=120, y=10, width=150, height=30)
+        lab3 = tk.Label(self.Tree_cv, text=self.tips, bg='#b7bcc0', font=('宋体', 14, 'bold'), borderwidth=5, anchor='w')
+        lab3.place(x=300, y=10, width=200, height=30)
+
+        tree.deepth = []
+        for i in range(len(tree.Node)):
+            tree.deepth.append(-1)
+        # 格式化树节点的深度
+        tree.deep()
+
+        # 初始化节点数与深度
+        dept, nums = -1, 0
+        tree.place = []
+        for i in range(len(tree.deepth)):
+            dept = max(dept, tree.deepth[i])
+            tree.place.append((None, None))
+            if tree.deepth[i] == 0:
+                nums += 1
+
+        tree_length = 500
+        tree_height = 400
+        dx = tree_length // (nums + 1)
+        dy = tree_height // (dept + 2)
+        # 若为数字节点
+        cur = 0
+        for i in range(len(tree.deepth)):
+            if tree.deepth[i] == 0:
+                cur += 1
+                tree.place[i] = (cur * dx, tree_height - dy)
+                color = 'white'
+                if tree.mark[i]:
+                    color = '#d1d2c8'
+                self.Tree_cv.create_rectangle(tree.place[i][0] - tree.bc / 2, tree.place[i][1] - tree.bc / 2,
+                                              tree.place[i][0] + tree.bc / 2,
+                                              tree.place[i][1] + tree.bc / 2, fill=color, width=0)
+                self.Tree_cv.create_text(tree.place[i][0], tree.place[i][1], text=str(tree.Node[i][5]),
+                                         font=('宋体', 15, 'bold'), anchor='center')
+
+        for d in range(dept):
+            cur_d = d + 1
+            for i in range(len(tree.deepth)):
+                if tree.deepth[i] == cur_d:
+                    lnode = tree.place[tree.Node[i][3]]
+                    rnode = tree.place[tree.Node[i][4]]
+                    node = ((lnode[0] + rnode[0]) / 2, tree_height - (cur_d + 1) * dy)
+                    self.Tree_cv.create_line(lnode[0], lnode[1] - tree.bc / 2, node[0], node[1] + tree.bc / 2,
+                                             fill='#1ffbe9', width=2)
+                    self.Tree_cv.create_line(rnode[0], rnode[1] - tree.bc / 2, node[0], node[1] + tree.bc / 2,
+                                             fill='#1ffbe9', width=2)
+                    tree.place[i] = node
+                    color = 'white'
+                    if tree.mark[i]:
+                        color = '#d1d2c8'
+                    self.Tree_cv.create_rectangle(tree.place[i][0] - tree.bc / 2, tree.place[i][1] - tree.bc / 2,
+                                                  tree.place[i][0] + tree.bc / 2, tree.place[i][1] + tree.bc / 2,
+                                                  fill=color, width=0)
+                    self.Tree_cv.create_text(tree.place[i][0], tree.place[i][1], text=str(tree.Node[i][2]),
+                                             font=('宋体', 15, 'bold'), anchor='center')
+
+        self.Tree_cv.update()
+
+window = Window()
+screen_width = window.winfo_screenwidth()  # winfo方法来获取当前电脑屏幕大小
+screen_height = window.winfo_screenheight()
+var = tk.StringVar()
+var2 = tk.StringVar()
+width = int(screen_width*0.8)
+height = int(screen_height*0.8 ) # 窗口大小
+x = int((screen_width - width) / 2)
+y = int((screen_height - height) / 2) - 40
+size = '{}x{}+{}+{}'.format(width, height, x, y)
+window.geometry(size)
+
+F = Frame_Tree(window)
+#基本组件显示
+cv = Canvas(window, width=width, height=height * 0.3, background='red')
+cv.place(x=0, y=3)
+cv.bind('<Button-1>', left2)
+entry = tk.Entry(window, show=None, font=('宋体', 15, 'bold'))
+entry.place(x=25, y=240, width=400, height=50)
+all_ans = None
+BUTs()
+
+
+
+'''
+
+label3 = tk.Label(window,text='√',fg='#cccccc',font=('宋体', 10, 'bold italic'), borderwidth=5, relief="sunken")
+label4 = tk.Label(window,text='×',fg='#cccccc',font=('宋体', 10, 'bold italic'), borderwidth=5, relief="sunken")
+label3.place(x=360,y=160,width=30,height=25)
+label4.place(x=360,y=180,width=30,height=25)
+label2 = tk.Label(window, text='= ?', font=('宋体', 15, 'bold'), width=30, height=10,
+                      # 设置填充区距离、边框宽度和其样式（凹陷式）
+                      borderwidth=5, relief="sunken")
+label2.place(x=240, y=160, width=60, height=50)
+'''
+init()
+# cv1 = tk.Canvas(window, width=380, height=90, bg='#FFFFCC')
+# cv1.place(x=100, y=200)
+
+
+'''
+cv = tk.Canvas(window, width=610, height=300, bg='#ffffff')
+cv.place(x=3, y=310)
+cv.create_rectangle(10,10,600,290,width=10,outline='#ff9933')
+
+
+
+bot = tk.Button(window,text='添加运算节点',bg='#ffffcc',fg='black',)
+bot.place(x=500,y=340,width=80,height=30)
+bot = tk.Button(window,text='添加数值节点',bg='#ffffcc',fg='black',)
+bot.place(x=500,y=375,width=80,height=30)
+bot = tk.Button(window,text='改变运算输入',bg='#ffffcc',fg='black',)
+bot.place(x=500,y=410,width=80,height=30)
+bot = tk.Button(window,text='改变节点运算',bg='#ffffcc',fg='black',)
+bot.place(x=500,y=445,width=80,height=30)
+bot = tk.Button(window,text='数值节点交换',bg='#ffffcc',fg='black',)
+bot.place(x=500,y=480,width=80,height=30)
+bot = tk.Button(window,text='产生表达式',bg='#ffffcc',fg='black',)
+bot.place(x=500,y=515,width=80,height=30)
+'''
+
+
+window.mainloop()
+
+
+# if __name__ == "__main__":
+#     # 初始化Tree类的实例
+#     tree = Tree()
+#
+#     # 调用calculate方法，并传递要计算的节点作为参数
+#     result = tree.calculate(tree.Node[3])
+#
+#     # 在这里对result进行后续操作，或者输出它
+#     print(result)
+
diff --git a/test.py b/test.py
new file mode 100644
index 0000000..caea306
--- /dev/null
+++ b/test.py
@@ -0,0 +1,63 @@
+import random
+import tkinter as tk
+from anytree import Node, RenderTree
+
+class Game:
+    def __init__(self):
+        self.root = tk.Tk()
+        self.root.title("24点游戏")
+        self.root.geometry("400x300")
+        self.root.resizable(False, False)
+
+        self.numbers = [random.randint(1, 9) for _ in range(4)]
+        self.expression = tk.StringVar()
+        self.expression.set("输入表达式")
+
+        self.number_labels = []
+        for i in range(4):
+            label = tk.Label(self.root, text=str(self.numbers[i]), font=("Arial", 24))
+            label.place(x=50 + i * 80, y=50)
+            self.number_labels.append(label)
+
+        input_entry = tk.Entry(self.root, textvariable=self.expression, font=("Arial", 24))
+        input_entry.place(x=50, y=150)
+
+        calculate_button = tk.Button(self.root, text="计算", font=("Arial", 24), command=self.calculate)
+        calculate_button.place(x=250, y=150)
+
+        self.result_label = tk.Label(self.root, text="", font=("Arial", 24))
+        self.result_label.place(x=50, y=200)
+
+    def calculate(self):
+        try:
+            root_node = Node("root")
+            expression = self.expression.get()
+            for char in expression:
+                if char.isdigit():
+                    node = Node(char, parent=root_node)
+                elif char == "+":
+                    node = Node(char, parent=root_node)
+                elif char == "-":
+                    node = Node(char, parent=root_node)
+                elif char == "*":
+                    node = Node(char, parent=root_node)
+                elif char == "/":
+                    node = Node(char, parent=root_node)
+                else:
+                    raise Exception("Invalid character")
+
+            result = eval(expression)
+            if result == 24:
+                self.result_label.config(text="正确")
+            else:
+                self.result_label.config(text="错误")
+
+            for pre, fill, node in RenderTree(root_node):
+                print("%s%s" % (pre, node.name))
+
+        except Exception as e:
+            print(e)
+            self.result_label.config(text="错误")
+
+game = Game()
+game.root.mainloop()