金属磨粒

#!/usr/bin/python

# coding: utf-8 

# import 'random', 'math' modules

import math, random

# import 'Tkinter' module to create a GUI

from tkMessageBox import *

from Tkinter import *





def get_three_num(ave):

    '''

    get three random numbers according to average number

    '''

        

    if not math.modf(ave)[0] == 0:

        showinfo(title = 'Wrong Number', message = 'Please input integer number')

    result_list = []

    for i in range(ave-100, ave + 10):

        for j in range(ave-100, ave + 10):
    
            for k in range(ave-100, ave + 10):

                if ((not i == 0) and (not j == 0) and (not k == 0) and

                   round((i + j + k) / 3.0) == ave and   # choose three numbers that satisfy  the percent of accuracy: 0.06
                   
                   abs(i - j) / 0.06 <= ave and

                   abs(j - k) / 0.06 <= ave and

                   abs(k - i) / 0.06 <= ave): 

                    result_list.append((i, j, k))

    return random.choice(result_list)
                 
     
    


# create a GUI to show the result after input the average

root = Tk()

root.title('Metal Granule')

Label(root, text = 'Average: ').grid(row = 0)

Label(root, text = 'Result: ').grid(row = 1)

e = Entry(root)

e.grid(row = 0, column = 1, padx = 10, pady = 5)

var = StringVar()




def return_event(x):

    '''

    Get the result and bind the result with <Return>

    '''


    
    if e.get() == '':

         showinfo(title = 'Warning!', message = 'Please input integer number!')  # messagebox to warn input nonempty number

    a_result, b_result, c_result = get_three_num(int(e.get()))  # change the content of entry to integer number

    var.set(str(a_result) + ',  ' + str(b_result) + ',  ' + str(c_result))

    Label(root, textvariable = var, justify = 'center').grid(row = 1, column = 1)  # show the result




def clr():  

    '''

    clear the content of Entry


    '''


    e.delete(0, END)

    var.set('')

    Label(root, textvariable = var).grid(row = 1, column = 1)


e.bind('<Return>', return_event) # bind 'enter' event with Entry


Button(root, text = 'Clear', width = 10, command = clr).grid(row = 3, column = 0, sticky = W, padx = 10, pady = 5)  # calculate the result         

Button(root, text = 'Quit', width = 10, command = quit).grid(row = 3, column = 1, sticky = E, padx = 10, pady = 5)  # quit from the current window


mainloop()