Python 图形界面元素

from tkinter import *
import os

def button_click1():
    try:
        filePath = r'D:CloudMusic'
        os.system("explorer.exe %s"%filePath)
        app.destroy()
    except Exception as ex:
        print(ex)

def test_scale(v):
    print(v)
    print(scaleVal.get())

def test_checkButton():
    print(track_playing.get())    

app = Tk()
app.title("Your tkinter application")
app.geometry('300x100+200+100')

b1 = Button(app,text = "Right",width = 10,command = button_click1)
b1.pack(side = 'left',padx = 10,pady = 10)

track_playing = IntVar()
c1_button = Checkbutton(app,variable=track_playing,command = test_checkButton,text = "music").pack()

scaleVal = DoubleVar()
scale_volume = Scale(app,
                     variable=scaleVal,
                     from_=0.0,
                     to=1.0,
                     resolution=0.1,
                     command=test_scale,
                     label="Volume",
                     orient=HORIZONTAL).pack()

app.protocol("WM_DELETE_WINDOW",button_click1)
#-app.protocol("WM_SAVE_YOURSELF",button_click1)
#app.protocol("WM_TAKE_FOCUS",button_click1)
app.mainloop()