Question

我尝试建立一个日历，显示一年中的当前月份，并按下＆lt;＆lt;和＆gt;＆gt;按钮，可以看到上个月或下个月。代码似乎一见钟情，但是当你想要查看前一个/下个月时，框架并没有完全清除，并显示前几个月的剩余天数，例如31个月只有30天。我无法弄清楚如何移除它们。你能帮我吗？感谢

from tkinter import Tk, RAISED, Label, Button, Frame

class org(Frame):
    def __init__(self, master):
    Frame.__init__(self, master)
    self.pack()


    def organizer(self, xx, yy):

        from calendar import monthrange, month
        monthname = str()
        m = month(yy, xx)

        for i in m:
            if i == '\n':
                break
            monthname +=i

        previous = Button(self, text = '<<', command = self.prev)
        previous.grid(row = 0, column = 0)

        nextt = Button(self, text = '>>', command = self.ntt)
        nextt.grid(row = 0, column = 6)

        month = Label(self, text = monthname+ '   ')
        month.grid(row = 0, column = 1, columnspan = 5)

        labels = ['Mo', 'Tu', 'We', 'Th', 'Fr', 'Sa', 'Su']
        for i in range(len(labels)):
            days = Label(self, text = labels[i], width = 3)
            days.grid(row = 1, column = i)

        (startday, endday) = monthrange(yy, xx)


        r = 2

        for i in range(0,startday):
            label = Label(self, width=3, text='       ')
            label.grid(row = 2, column = i)

        for i in range(1, endday+1):
            label = Button(self, text = i, width = 3)
            label.grid(row = r, column = startday)
            startday +=1
            if startday > 6:
                startday -= 7
                r += 1

        for i in range(startday, 7):
            label = Label(self, width=3, text='       ')
            label.grid(row = r, column = i)



class Cal(Frame):
    def __init__(self, master):
        Frame.__init__(self, master)
        self.pack()

        self.x = 10  #Oct
        self.y =2016 #2016

        org.organizer(self,self.x, self.y)

    def prev(self):
        Frame.grid_remove(self)
        self.x -= 1
        if self.x==0:
            self.x = 1
        else:
            org.organizer(self,self.x, self.y)


    def ntt(self):
        self.x += 1
        if self.x==13:
            self.x = 12
        else:
            org.organizer(self,self.x, self.y)

root = Tk()
a = Cal(root)
a.pack()
root.mainloop()

Answer 1

好像你想删除在Tk（）上绘制的所有小部件并重绘它。您可以使用以下代码删除所有小部件：

for child in root.winfo_children():
    child.destroy()

更新后，框架/网格不会自行清除

1 个答案: