python - StringVar.set ("...")在多个 tkinter 窗口中不起作用

Question

我的程序有一个打开新窗口的库

这是库(称为 make_entry):

from tkinter import *

def Create():
    Window = Tk() # window    
    Window.geometry("900x500+50+50") # heightxwidth+x+y

    mainPanel = Canvas(Window, width = 900, height = 500) # main screen
    mainPanel.pack()

    anyvar = StringVar() # the text in the entry
    entry = Entry(mainPanel, width = 40, font = ("Purisa", 12, "bold"), justify = "center", textvariable = anyvar) # the entry
    mainPanel.create_window(200, 100, window = entry)
    anyvar.set("This doesnt work!!!!!")

    Window.mainloop()

#Create()

如果我单独运行这个库，那么一切都会正常工作，但是当我从另一个程序导入它时，唯一不起作用的是 anyvar.set("This does not work!!!!!") .

这是我导入它的位置:(大部分代码已被删除)

from tkinter import *
Window = Tk()
import make_entry
make_entry.Create()
Window.mainloop()

有没有办法在不删除任何窗口的情况下解决此问题？

Answer 1

您有两个 Tk() 实例，这使 Tkinter 感到困惑。我猜测 StringVar() 将转到另一个(第一个)实例。相反，将唯一的实例传递给函数，并为新窗口使用 Toplevel。

from tkinter import *

def Create(root):
    window=Toplevel(root)    
    window.geometry("900x500+50+50") # heightxwidth+x+y

    mainpanel = Canvas(window, width = 900, height = 500) # main screen
    mainpanel.pack()

    anyvar = StringVar() # the text in the entry
    entry = Entry(mainpanel, width = 40, font = ("Purisa", 12, "bold"), justify = "center", textvariable = anyvar) # the entry
    mainpanel.create_window(200, 100, window = entry)
    anyvar.set("This doesnt work!!!!!")

和

from tkinter import *
Window = Tk()
import make_entry
make_entry.Create(Window)
Window.mainloop()