Minesweeper game instance code based on Python implementation

The example in this paper refers to the MVC pattern, the core data is the model, and 1 matrix is maintained. 0 table has no thunder, 1 table has no thunder, and -1 table has been detected.
This example USES python's tkinter to do GUI, because did not consider the usability problem, so the UI is ugly, pygame is more interesting, more powerful and better to see, do these small games more appropriate, interested readers can try!

The specific functional code is as follows:

# -*- coding: utf-8 -*-
import random
import sys
from Tkinter import *

class Model:
  """
   Core data class, maintaining a matrix 
  """
  def __init__(self,row,col):
    self.width=col
    self.height=row
    self.items=[[0 for c in range(col)] for r in range(row)]

  def setItemValue(self,r,c,value):
    """
     Set the value of a location to value
    """
    self.items[r][c]=value;

  def checkValue(self,r,c,value):
    """
     Detects if a value at a location is value
    """
    if self.items[r][c]!=-1 and self.items[r][c]==value:
      self.items[r][c]=-1 # It has been tested 
      return True
    else:
      return False
    
  def countValue(self,r,c,value):
    """
     I'm going to count around a certain location 8 Where, the value is value The number of 
    """
    count=0
    if r-1>=0 and c-1>=0:
      if self.items[r-1][c-1]==1:count+=1
    if r-1>=0 and c>=0:
      if self.items[r-1][c]==1:count+=1
    if r-1>=0 and c+1<=self.width-1:
      if self.items[r-1][c+1]==1:count+=1
    if c-1>=0:
      if self.items[r][c-1]==1:count+=1
    if c+1<=self.width-1 :
      if self.items[r][c+1]==1:count+=1
    if r+1<=self.height-1 and c-1>=0:
      if self.items[r+1][c-1]==1:count+=1
    if r+1<=self.height-1 :
      if self.items[r+1][c]==1:count+=1
    if r+1<=self.height-1 and c+1<=self.width-1:
      if self.items[r+1][c+1]==1:count+=1
    return count

  
class Mines(Frame):
  def __init__(self,m,master=None):
    Frame.__init__(self,master)
    self.model=m
    self.initmine()
    self.grid()
    self.createWidgets()

 
  
  def createWidgets(self):
    #top=self.winfo_toplevel()
    #top.rowconfigure(self.model.height*2,weight=1)
    #top.columnconfigure(self.model.width*2,weight=1)
    self.rowconfigure(self.model.height,weight=1)
    self.columnconfigure(self.model.width,weight=1)
    self.buttongroups=[[Button(self,height=1,width=2) for i in range(self.model.width)]
              for j in range(self.model.height)]
    for r in range(self.model.width):
      for c in range(self.model.height):
        self.buttongroups[r][c].grid(row=r,column=c)
        self.buttongroups[r][c].bind('<Button-1>',self.clickevent)
        self.buttongroups[r][c]['padx']=r
        self.buttongroups[r][c]['pady']=c

  def showall(self):
    for r in range(model.height):
      for c in range(model.width):
        self.showone(r,c)

  def showone(self,r,c):
    if model.checkValue(r,c,0):
      self.buttongroups[r][c]['text']=model.countValue(r,c,1)
    else:
      self.buttongroups[r][c]['text']='Mines'

  def recureshow(self,r,c):
    if 0<=r<=self.model.height-1 and 0<=c<=self.model.width-1:
      if model.checkValue(r,c,0) and model.countValue(r,c,1)==0:
        self.buttongroups[r][c]['text']=''
        self.recureshow(r-1,c-1)
        self.recureshow(r-1,c)
        self.recureshow(r-1,c+1)
        self.recureshow(r,c-1)
        self.recureshow(r,c+1)
        self.recureshow(r+1,c-1)
        self.recureshow(r+1,c)
        self.recureshow(r+1,c+1)
      elif model.countValue(r,c,1)!=0:
        self.buttongroups[r][c]['text']=model.countValue(r,c,1)
    else:
      pass
        
      
  def clickevent(self,event):
    """
     Click on the event 
    case 1: It's thunder. It's all on display. Game over 
    case 2: Is the number of surrounding thunder 0 Recursively fires around 8 a button Click event of 
    case 3: The number of surrounding thunder is not 0 Shows the number of surrounding thunder 
    """
    r=int(str(event.widget['padx']))
    c=int(str(event.widget['pady']))
    if model.checkValue(r,c,1):# Is the thunder 
      self.showall()
    else:# Not the thunder 
      self.recureshow(r,c)
    
    
  def initmine(self):
    """
     mine , Each row of buried height/width+2 A tentative 
    """
    r=random.randint(1,model.height/model.width+2)
    for r in range(model.height):
      for i in range(2):
        rancol=random.randint(0,model.width-1)
        model.setItemValue(r,rancol,1)

  
  def printf(self):
    """
     print 
    """
    for r in range(model.height):
      for c in range(model.width):
        print model.items[r][c],
      print '/n'
      

def new(self):
  """
   Start the game again 
  """
  pass

if __name__=='__main__':
  model=Model(10,10)
  root=Tk()
  
  #menu
  menu = Menu(root)
  root.config(menu=menu)
  filemenu = Menu(menu)
  menu.add_cascade(label="File", menu=filemenu)
  filemenu.add_command(label="New",command=new)
  filemenu.add_separator()
  filemenu.add_command(label="Exit", command=root.quit)

  #Mines
  m=Mines(model,root)
  #m.printf()
  root.mainloop()