Question

from tkinter import *
import time

master = Tk()

def uiPrint():
    print("")
    print(click)


click = 0
mult = 1
clickView = click

def doubClicks():
    global click
    global mult
    if click < 5:
        print("Not enough clicks!")
    elif click >= 5:
        mult = mult*2
        click = click - 5
        print("Double Clicks Purchased!")

def buttonCommand():
    clickView = IntVar()
    Label(master, textvariable =clickView).pack()
    clickView.get()
    global click
    global mult
    click += 1*(mult)
    uiPrint()

mainClickButton = Button(master, text="Click!", command = buttonCommand)
mainClickButton.pack()

purchaseDoubleClickButton = Button(master, text="Purchase Double Clicks", command = doubClicks)
purchaseDoubleClickButton.pack()


master.title("Clicker")
master.geometry("%sx%s+%s+%s" % (200,70,512,512))
mainloop()

问题：

tkinter窗口上的标签，告诉您有多少次点击停留在0，进行更新。问题是什么？可能缺少一些非常明显的东西

Answer 1

我认为你应该更新你的IntVar的同一个实例，以便更新内容。你应该做的是在主程序中创建你的IntVar并在buttonCommand（）函数中使用它作为全局：

def buttonCommand():    
    global click
    global mult
    global clickView
    click += 1*(mult)
    clickView.set(click)
    uiPrint()

mainClickButton = Button(master, text="Click!", command = buttonCommand)
mainClickButton.pack()

purchaseDoubleClickButton = Button(master, text="Purchase Double Clicks", command = doubClicks)
purchaseDoubleClickButton.pack()

clickView = IntVar()
clickView.set(click)
Label(master, textvariable = clickView).pack()

修改要在购买双击时更新标签，请在“doubleClicks”功能上使用相同的方法：

def doubClicks(): global click global mult global clickView if click < 5: print("Not enough clicks!") elif click >= 5: mult = mult*2 click = click - 5 print("Double Clicks Purchased!") clickView.set(click)

另一种方法是使用OOP，因此创建一个“clicker”类而不是使用全局变量：

from Tkinter import * class Clicker(): def __init__(self, master): self.click = 0 self.mult = 1 self.clickView = StringVar() self.clickView.set(self.click) self.mainClickButton = Button(master, text="Click!", command = self.buttonCommand) self.mainClickButton.pack() self.purchaseDoubleClickButton = Button(master, text="Purchase Double Clicks", command = self.doubClicks) self.purchaseDoubleClickButton.pack() Label(master, textvariable = self.clickView).pack() def uiPrint(self): print("") print(self.click) def doubClicks(self): if self.click < 5: print("Not enough clicks!") elif self.click >= 5: self.mult = self.mult*2 self.click = self.click - 5 print("Double Clicks Purchased!") self.clickView.set(self.click) def buttonCommand(self): self.click += 1*(self.mult) self.clickView.set(self.click) self.uiPrint() if __name__ == '__main__': master = Tk() master.title("Clicker") master.geometry("%sx%s+%s+%s" % (200,70,512,512)) clicker = Clicker(master) mainloop()

更新python tkinter标签

1 个答案: