我正在嘗試制作一個計時器來關閉我運行 linux 的計算機。選擇我使用 spinbox 的時間。所以想法是選擇旋轉框中的時間量，然后添加到命令sudo shutdown -P+ 15 分鐘（例如示例）。直到現在它才關閉，我無法用簡單的方法來做到這一點。from tkinter import *import osimport timedef shutdown(): hrs = spin1.get() command1 = ('sudo shutdown -P') #sum1 = command1 + hrs os.system('sudo shutdown -P') + ('hrs') print(os.system)def cancel(): command = ('sudo shutdown -c') os.system('sudo shutdown -c') print(command)'''def hrs(): spn1 = spin1.get() dsp1 = spn1 lbltime ['text'] = dsp1'''entry_width = 2win = Tk()spin1 = IntVar()spn = IntVar()win.title('SHUTDOWN')win.geometry('300x250+300+150')lbl = Label(win, text='SET YOUR SHUTDOWN')lbl.place(x=80, y=30)spin1 = Spinbox(win, from_=00, to=23, font=('arial',26,'bold'), width= entry_width, textvariable=spin1)spin1.insert(0, '00')spin1.place(x=130, y=60)setup = Button(win, text='SET TIMER', font=('arial',16,'bold'), command=lambda :shutdown())setup.place(x=90, y=130)cnc = Button(win, text='CANCEL', font=('verdana',10, 'bold'),command= lambda :cancel())cnc.place(x=120, y=180)win.mainloop()
1 回答
料青山看我應如是
TA貢獻1772條經驗 獲得超8個贊
為了將您的hrs（由用戶選擇的分鐘數）添加到您的命令中，您可以簡單地將其添加到現有的字符串命令中，使用+或使用format()我在我的解決方案中顯示的方法。此外，在運行sudo需要輸入密碼的命令時，要自動執行此操作，您可以使用 -S 參數使 sudo 從 STDIN 讀取密碼，這里"mypassword"。
def shutdown():
hrs = spin1.get()
sd_command = 'echo mypassword | sudo -S shutdown -P +' + hrs # both will work
sd_command = 'echo mypassword | sudo -S shutdown -P +{}'.format(hrs)
os.system(command)
print(command)
def cancel():
cancel_command = 'echo mypassword | sudo -S shutdown -c'
os.system(cancel_command)
print(cancel_command)
如果要添加有關關機計劃的消息，則需要添加另一個標簽，此處shutdown_schedule將顯示var_scheduletkinter 字符串變量的內容，該內容將在用戶計劃或取消關機時進行修改。
def shutdown():
hrs = spin1.get()
sd_time = time.strftime("%H:%M", time.localtime(time.time() + 60*int(hrs)))
var_schedule.set('Shutdown scheduled for {}'.format(sd_time))
sd_command = 'echo mypassword | sudo -S shutdown -P +' + hrs # both will work
sd_command = 'echo mypassword | sudo -S shutdown -P +{}'.format(hrs)
os.system(command)
print(command)
def cancel():
var_schedule.set('Shutdown not scheduled yet')
cancel_command = 'echo mypassword | sudo -S shutdown -c'
os.system(cancel_command)
print(cancel_command)
var_schedule = StringVar()
var_schedule.set('Shutdown not scheduled yet')
shutdown_schedule = Label(win, textvariable=var_schedule)
shutdown_schedule.place(x=130, y=30)
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