python 提示框如何顶层显示_如何控制顶层窗口的显示？

这是我的代码的缩写。

{{cd2>只想在窗口中弹出{cd2>。在

然而，目前，[input2]和[solve]窗口同时弹出，解决了！单击按钮时不执行任何操作。在

这是我的代码：from tkinter import *

class welcome():

def __init__(self, master): #master: root - the main window

# welcome and introduction

self.master=master

self.master.geometry("500x200")

self.welcome = Label(self.master, text="Welcome to The Bees's")

self.welcome.pack()

self.intro = Label(self.master, text="This is our project for Python course")

self.intro.pack()

self.intro2 = Label(self.master, text="This program is use for solving Linear Programming, IP, BIP, mixed... problem")

self.intro2.pack()

self.startbutton = Button(self.master, text="Start", bg="yellow")

self.startbutton.pack()

self.startbutton.config(command=self.gotoinput)

def gotoinput(self):

root2 = Toplevel(self.master)

self.input1=input(root2)

输入窗口的类：

^{pr2}$

input2窗口的类：class input2():

def __init__(self,master):

self.master=master

self.master.title("Input2")

self.master.geometry("700x500")

# cancle

self.Canclebutton = Button(self.master, text="Cancle", command=self.master.destroy).grid(row=0, column=0)

# OK

self.Solvebutton = Button(self.master, text="Solve!", command=self.gotosolve()).grid(row=0, column=1)

print("Through")

def gotosolve(self):

print("gotosolve")

root4=Toplevel(self.master)

self.solve11=solve(root4)

求解窗口的类：class solve():

def __init__(self,master):

self.master = master

self.master.title("Solution")

self.master.geometry("700x500")

# cancle

self.Canclebutton = Button(self.master, text="Cancle", command=self.master.destroy).grid(row=0,column=0)

主要功能：def main():

# create a main window

root = Tk()

root.title("The Bees's")

b = welcome(root)

# end line

root.mainloop()

main()