diff --git a/SHUDU.py b/SHUDU.py
deleted file mode 100644
index 7b784b4..0000000
--- a/SHUDU.py
+++ /dev/null
@@ -1,171 +0,0 @@
-import random
-from tkinter.messagebox import showinfo
-import pygame
-from pygame.color import THECOLORS as COLORS
-from tkinter import *
-
-
-class BUILAGAME():
-    def __init__(self, matrix):
-        self.matrix = matrix
-
-    def PrintMatrix(matrix):
-        print('—'*19)
-        for row in matrix:
-            print('|'+' '.join([str(col) for col in row])+'|')
-        print('—'*19)
-
-
-    def ShuffleNumber(AnyList):
-        random.shuffle(AnyList)
-        return AnyList
-
-
-    def Check(matrix, i, j, number):
-        if number in matrix[i]:
-            return False
-        if number in [row[j] for row in matrix]:
-            return False
-        pratI, pratJ = int(i/3), int(j/3)
-        if number in [matrix[i][j] for i in range(pratI*3, (pratI+1)*3) for j in range(pratJ*3, (pratJ+1)*3)]:
-            return False
-        return True
-
-
-    def BuildMap(matrix, i, j, number):
-        if i > 8 or j > 8:
-           return matrix
-        if BUILAGAME.Check(matrix, i, j, number):
-            mattrix_no1 = [[col for col in row] for row in matrix]
-            mattrix_no1[i][j] = number
-            next_i,next_j = (i+1, 0) if j == 8 else (i, j+1)
-            for number2 in BUILAGAME.ShuffleNumber(number_list):
-                mattrix_no2 = BUILAGAME.BuildMap(mattrix_no1, next_i, next_j, number2)
-                if mattrix_no2 and sum([sum(row) for row in mattrix_no2]) == (sum(range(1, 10))*9):
-                    return mattrix_no2
-        return None
-
-
-    def PreaGame(blank_size=9):
-        matrix_all = BUILAGAME.BuildMap(matrix, 0, 0, random.choice(number_list))
-        set_ij = set()
-        while len(list(set_ij)) < blank_size:
-            templist = [0, 1, 2, 3, 4, 5, 6, 7, 8]
-            set_ij.add(str(random.choice(templist))+','+str(random.choice(templist)))
-        matrix_blank = [[col for col in row] for row in matrix_all]
-        blank_ij = []
-        for ij in list(set_ij):
-            i,j = int(ij.split(',')[0]),int(ij.split(',')[1])
-            blank_ij.append((i, j))
-            matrix_blank[i][j] = 0
-        return matrix_all, matrix_blank, blank_ij
-
-
-def DrawBG():
-    BG_COLOR = (40, 40, 60)  # 背景色（黑蓝）
-    screen.fill(BG_COLOR)
-    pygame.display.set_caption('数独游戏')
-    pygame.draw.rect(screen, COLORS['black'], (0, 0, 200, 600), 3)#画出九宫格
-    pygame.draw.rect(screen, COLORS['black'], (200, 0, 200, 600), 3)
-    pygame.draw.rect(screen, COLORS['black'], (400, 0, 200, 600), 3)
-    pygame.draw.rect(screen, COLORS['black'], (0, 0, 600, 200), 3)
-    pygame.draw.rect(screen, COLORS['black'], (0, 200, 600, 200), 3)
-    pygame.draw.rect(screen, COLORS['black'], (0, 400, 600, 200), 3)
-
-
-def DrawChoose():
-    BLOCK_COLOR = (129, 216, 208)  #选中方块颜色（蒂凡尼蓝）
-    pygame.draw.rect(screen, BLOCK_COLOR, (curJ * 66 + 5, curI * 66 + 5, 66 - 6, 66 - 6), 0)
-
-
-def WinorNot(matrix_all, matrix):
-    if matrix_all == matrix:
-        return True
-    return False
-
-
-def CheckColor(matrix, i, j):
-    mattrix_no1 = [[col for col in row] for row in matrix]
-    mattrix_no1[i][j] = 0
-    if BUILAGAME.Check(mattrix_no1, i, j, matrix[i][j]):
-        return COLORS['green']
-    return COLORS['red']
-
-
-def DrawNum():
-    for i in range(len(MATRIX)):
-        for j in range(len(MATRIX[0])):
-            _color = CheckColor(MATRIX, i, j) if (i, j) in BLANK_IJ else COLORS['gray']
-            txt = font80.render(str(MATRIX[i][j] if MATRIX[i][j] not in [0, '0'] else ''), True, _color)
-            x, y = j * 66 + 20, i * 66 + 6       #字体占据大小
-            screen.blit(txt, (x, y))
-
-
-def DrawContext():
-    txt = font100.render('Blank:' + str(cur_blank_size) + '   Change:' + str(cur_change_size), True, COLORS['white'])
-    x, y = 10, 600
-    screen.blit(txt, (x, y))
-
-def level(number):
-    global cur_blank_size
-    cur_blank_size = number
-    return
-
-def startgame():
-    root = Tk();
-    root.title("数独游戏")
-    Label(root, text="欢迎来到数独游戏，请选择难度").place(x=60, y=1)
-    root.geometry("300x120")
-    button0 = Button(root, text="简单", width=8, command=lambda: level(10))
-    button1 = Button(root, text="一般", width=8, command=lambda: level(25))
-    button2 = Button(root, text="困难", width=8, command=lambda: level(35))
-    button3 = Button(root, text="大师", width=8, command=lambda: level(64))
-    button0.place(x=10, y=40)
-    button1.place(x=80, y=40)
-    button2.place(x=150, y=40)
-    button3.place(x=220, y=40)
-    mainloop()
-
-
-if __name__ == "__main__":
-    pygame.init()
-    cur_blank_size = 10
-    startgame()
-    number_list = [1, 2, 3, 4, 5, 6, 7, 8, 9]
-    matrix = [([0] * 9) for i in range(9)]
-    SIZE = [600, 700]#窗口尺寸
-    font80 = pygame.font.SysFont('Times', 50)#字体大小
-    font100 = pygame.font.SysFont('Times', 50)
-
-    screen = pygame.display.set_mode(SIZE)
-
-    curI, curJ = 0, 0
-    cur_change_size = 0
-
-    # matrix abount
-    MATRIX_ANSWER, MATRIX, BLANK_IJ = BUILAGAME.PreaGame(blank_size=cur_blank_size)
-    print(BLANK_IJ)
-    BUILAGAME.PrintMatrix(MATRIX)
-
-    running = True
-    while running:
-        for event in pygame.event.get():
-            if event.type == pygame.QUIT:
-                running = False
-                break
-            elif event.type == pygame.MOUSEBUTTONDOWN:
-                curJ, curI = int(event.pos[0] / 66), int(event.pos[1] / 66)
-            elif event.type == event.type == pygame.KEYUP:
-                if chr(event.key) in ['1', '2', '3', '4', '5', '6', '7', '8', '9'] and (curI, curJ) in BLANK_IJ:
-                    MATRIX[curI][curJ] = int(chr(event.key))
-                    cur_blank_size = sum([1 if col == 0 or col == '0' else 0 for row in MATRIX for col in row])
-                    cur_change_size += 1
-        DrawBG()
-        DrawChoose()
-        DrawNum()
-        DrawContext()
-        pygame.display.flip()
-        if WinorNot(MATRIX_ANSWER, MATRIX):
-            showinfo(title="Game end", message="You win, well done!")
-            break
-    pygame.quit()
\ No newline at end of file