TKinter GUI

• 自定义进度条：

  import Tkinter as tk
  import ttk as ttk
  root = tk.Tk()
  frame = tk.Frame(root)
  frame.grid()
  s = tkinter.ttk.Style()
  s.theme_use('clam')
  s.configure("red.Horizontal.TProgressbar", troughcolor='white', background='red', bordercolor='white')
  ttk.Progressbar(frame, style="red.Horizontal.TProgressbar", orient="horizontal",
                  length=600, mode="determinate", maximum=4, value=1).grid(row=1, column=1)
  frame.pack()
  

  进度条属性：

  Element	Defines
  troughcolor	background of full widget
  background	background of progress bar
  darkcolor	bottom & right progress bar innermost border
  lightcolor	top & left bar progress bar innermost border
  bordercolor	outline border of the progress bar (outside the above border) and the whole widget

  TROUGH_COLOR = 'blue'
  BAR_COLOR = 'green'
  style.configure("bar.Horizontal.TProgressbar", troughcolor=TROUGH_COLOR, 
                  bordercolor=TROUGH_COLOR, background=BAR_COLOR, lightcolor=BAR_COLOR, 
                  darkcolor=BAR_COLOR)