我想有多个点击事件，开始计时器发生在同一时间，这是可能的吗?如果有，那又如何呢?

Question

所以我在写我的第一个真正的程序的中间，我似乎找不到一个解决方案。我希望能够单击多个标签在不同的时间与停止以前的标签，当一个新的被点击。起初，这对我来说似乎是一个简单的问题，但在阅读后，我相信它比我想象的更复杂。异步代码能解决我的问题吗?如果不是，什么会?Btw代码编译和工作很好，除了我明显的问题。

from Tkinter import *
import os
import time

class League_Jungle_Timer(Frame):
  def __init__(self):
        Frame.__init__(self)
        self.master.title("Jungle Timer by BabyAchilles")                                   # initializes window
        self.master.geometry("550x300")
        self.pack(expand = YES, fill = BOTH)  

        self.Label1 = Label(self)
        self.Label1 = Label(text = "Blue Buff")             #-------------->   #Start Tkinter GUI Labels                     
        self.Label1.pack()

        self.Label2 = Label(self)
        self.Label2 = Label(self, text = "Red Buff")
        self.Label2.pack()
        self.Label3=Label(self)
        self.Label3=Label(self, text = "Dragon",font=("Helvetica", 16))
        self.Label3.pack()
        self.Button1 = Button(self)         #-------------->          #Start Tkinter GUI Buttons
        self.Button1["text"] = "Blue Buff"
        self.Button1["fg"]   = "Blue"
        self.Button1["command"] = self.label_clicked
        self.Button1.pack({"side": "left"})
        self.Button2 = Button(self)
        self.Button2["text"] = "Red Buff"
        self.Button2["fg"] = "Red"
        self.Button2["command"] = self.my_timeRB
        self.Button2.pack({"side":"right"}) 
        self.Button2.pack(padx=50)
        self.Button3 = Button(self)
        self.Button3["text"] = " Dragon "
        self.Button3["fg"] = "Pink"
        self.Button3["bg"] = "Purple"
        self.Button3["command"] = self.my_timeDrag
        self.Button3.pack(side="bottom",pady=50)
        self.Quit = Button(self)
        self.Quit["text"] = "Quit"
        self.Quit["command"] = self.destroy
        self.Quit.pack()
        self.Label1.bind("<Button-1>", self.label_clicked)
        self.Label2.bind("<Button-3>", self.label2_clicked)
        self.Label3.bind("<Double-Button-1>",self.label3_clicked)
##########################################################################    
  def my_timeDrag(self):  # creates a timer starting at 5 min , counts down to 0 then repeats
    min_m = 5
    sec = 59
    while sec <=60:
      self.Label3.configure(text="{0}:{1:02}".format(min_m, sec))
      self.Label3.update()
      os.system('cls')
      print min_m, "Minutes", sec, "Seconds"
      time.sleep(1)
      sec -= 1
      if    sec == 0:
            min_m -= 1
            sec = 59
      elif  min_m == 0:
            min_m = 5
##########################################################################################
  def my_timeBB(self):  # creates a timer starting at 5 min , counts down to 0 then repeats
    min_m = 4
    sec = 59
    while sec <=60:
      self.Label1.configure(text="{0}:{1:02}".format(min_m,sec))
      self.Label1.update()
      os.system('cls')
      print min_m, "Minutes", sec, "Seconds"
      time.sleep(1)
      sec -= 1
      if   sec == 0:
           min_m -= 1
           sec = 59
      elif min_m == 0:
           min_m = 4

#######################################################   
  def my_timeRB(self):  # creates a timer starting at 5 min , counts down to 0 then repeats
    _min = 4
    sec = 59
    while sec <=60:
      self.Label2.configure(text="{0}:{1:02}".format(_min,sec))
      self.Label2.update()
      os.system('cls')
      print _min, "Minutes", sec, "Seconds"
      time.sleep(1)
      sec -= 1
      if    sec == 0:
            _min -= 1
            sec = 59
      elif  _min == 0:
            _min = 4
##############################################################
  def label_clicked(self, event):
    self.Label1.configure(self.my_timeBB())
    self.Label1.update()
  def label2_clicked(self, event):
    self.Label2.configure(self.my_timeRB())
    self.Label2.update()                     
  def label3_clicked(self, even):
    self.Label3.configure(self.my_timeDrag())
    self.Label3.update()        

League_Jungle_Timer().mainloop()

Answer 1

您可以使用tk.after()来获取这个

使用after(1000, function_name)，您在1000 ms后运行一些(小)函数，它不会停止其他函数(如果您不使用time.sleep)。这个功能可以让after()自己再次运行。

from Tkinter import *
import os
import time
class League_Jungle_Timer(Frame):
    def __init__(self):
        Frame.__init__(self)
        # initializes window
        self.master.title("Jungle Timer by BabyAchilles")
        self.master.geometry("550x300")
        self.pack(expand=YES, fill=BOTH)  
        # Start Tkinter GUI Labels
        self.label1 = Label(self, text="Blue Buff")                     
        self.label1.pack()

        self.label2 = Label(self, text="Red Buff")
        self.label2.pack()
        self.label3=Label(self, text="Dragon", font=("Helvetica", 16))
        self.label3.pack()
        # Start Tkinter GUI Buttons
        self.Button1 = Button(self, text="Blue Buff", fg="Blue", command=self.my_timeBB)
        self.Button1.pack(side="left")
        self.Button2 = Button(self, text="Red Buff", fg="Red", command=self.my_timeRB)
        self.Button2.pack(side="right", padx=50)
        self.Button3 = Button(self, text=" Dragon ", fg="Pink", bg="Purple", command=self.my_timeDrag)
        self.Button3.pack(side="bottom",pady=50)
        self.Quit = Button(self, text="Quit", command=self.destroy)
        self.Quit.pack()
        self.label1.bind("<Button-1>", self.label_clicked)
        self.label2.bind("<Button-3>", self.label2_clicked)
        self.label3.bind("<Double-Button-1>",self.label3_clicked)
        self.timer_id_DR = None
        self.timer_id_RB = None
        self.timer_id_BB = None
    #######################################################   
    # creates a timer starting at 5 min , counts down to 0 then repeats
    def my_timeDrag(self):
        self.my_timeDrag_time = [4, 59]
        if self.timer_id_DR:
            self.after_cancel(self.timer_id_DR)
            self.timer_id_DR = None
        self.my_timeDrag_after()
    def my_timeDrag_after(self):
        m, s = self.my_timeDrag_time
        self.label3.configure(text="{0}:{1:02}".format(m, s))
        self.label3.update()
        #os.system('cls')
        print "DR", m, "Minutes", s, "Seconds"
        s -= 1
        if s == 0:
           m -= 1
           s = 59
        elif m == 0:
           m = 5
        self.my_timeDrag_time = [m, s]
        self.timer_id_DR = self.after(1000, self.my_timeDrag_after)
    #######################################################   
    # creates a timer starting at 5 min , counts down to 0 then repeats
    def my_timeBB(self):
        self.my_timeBB_time = [4, 59]
        if self.timer_id_BB:
            self.after_cancel(self.timer_id_BB)
            self.timer_id_BB = None        
        self.my_timeBB_after()
    def my_timeBB_after(self):
        m, s = self.my_timeBB_time
        self.label1.configure(text="{0}:{1:02}".format(m, s))
        self.label1.update()
        #os.system('cls')
        print "BB", m, "Minutes", s, "Seconds"
        s -= 1
        if s == 0:
           m -= 1
           s = 59
        elif m == 0:
           m = 5
        self.my_timeBB_time = [m, s]
        self.timer_id_BB = self.after(1000, self.my_timeBB_after)
    #######################################################   
    def my_timeRB(self):
        self.my_timeRB_time = [4, 59]
        #if self.timer_id_RB:
        self.after_cancel(self.timer_id_RB)
        #self.timer_id_RB = None         
        self.my_timeRB_after()
    def my_timeRB_after(self):
        m, s = self.my_timeRB_time
        self.label2.configure(text="{0}:{1:02}".format(m, s))
        self.label2.update()
        #os.system('cls')
        print "RB", m, "Minutes", s, "Seconds"
        s -= 1
        if s == 0:
           m -= 1
           s = 59
        elif m == 0:
           m = 5
        self.my_timeRB_time = [m, s]
        self.timer_id_BB = self.after(1000, self.my_timeRB_after)
    #######################################################   
    def label_clicked(self, event):
        self.label1.configure(self.my_timeBB())
        self.label1.update()
    def label2_clicked(self, event):
        self.label2.configure(self.my_timeRB())
        self.label2.update()                     
    def label3_clicked(self, even):
        self.label3.configure(self.my_timeDrag())
        self.label3.update()        
##############################################################
League_Jungle_Timer().mainloop()

Answer 2

修复非常简单，但是有点复杂。

你需要使用python的多线程和队列库。

首先要导入:

import threading
import Queue

然后设置线程类:

class ThreadedClient(threading.Thread):
    def __init__(self, queue, fcn):
        threading.Thread.__init__(self)
        self.queue = queue
        self.fcn = fcn
    def run(self)
        time.sleep(1)
        self.queue.put(self.fcn())

然后，在League_Jungle_Timer类中添加两个函数。spawnthread设置线程，启动线程，然后调用periodiccall，允许主循环和任何"并发"函数。

def spawnthread(self, fcn):
    self.thread = ThreadedClient1(self.queue, fcn)
    self.thread.start()
    self.periodiccall(thread)
def periodiccall(self):
    if self.thread.is_alive():
        self.after(100, self.periodiccall)

将这行添加到League_Jungle_Timer的init方法中以设置队列:

self.queue = Queue.Queue()

使用时，调用lambda: self.spawnthread(self.my_timeBB())或任何其他您想调用的函数。使用该表达式作为按钮回调或标签配置。