如何在用户单击按钮时打开一个新的 window？

Question

当用户单击按钮（仍需要创建）时，我如何创建一个新的 window？我已经取出一些代码来缩短它。我需要创建一个按钮，当他们点击该按钮时，将打开一个新的 window。我没有创建按钮，因为按钮必须链接到新的 window。请帮助

My imports...

class App:

    def __init__(self, master):
        self.master = master

        # call start to initialize to create the UI elemets
        self.start()

    def start(self):
        self.master.title("E-mail Extranalyser")
        self.now = datetime.datetime.now()

        tkinter.Label(
            self.master, text=label01).grid(row=0, column=0, sticky=tkinter.W)


        # CREATE A TEXTBOX
        self.filelocation = tkinter.Entry(self.master)
        self.filelocation["width"] = 60
        self.filelocation.focus_set()
        self.filelocation.grid(row=0, column=1)


        # CREATE A BUTTON WITH "ASK TO OPEN A FILE"
        # see: def browse_file(self)
        self.open_file = tkinter.Button(
            self.master, text="Browse...", command=self.browse_file)
        # put it beside the filelocation textbox
        self.open_file.grid(row=0, column=2)

        # now for a button
        self.submit = tkinter.Button(
            self.master, text="Execute!", command=self.start_processing,
            fg="red")
        self.submit.grid(row=13, column=1, sticky=tkinter.W)

    def start_processing(self):
        #code here


    def browse_file(self):
        # put the result in self.filename
        self.filename = filedialog.askopenfilename(title="Open a file...")

        # this will set the text of the self.filelocation
        self.filelocation.insert(0, self.filename)

root = tkinter.Tk()
app = App(root)
root.mainloop()

Answer 1

使用一个Toplevel打开一个新的。如下所示修改您的代码。

self.NewWindow = tkinter.Button(self.master, 
                                text="New Window", 
                                command=self.CreateNewWindow)

 def CreateNewWindow(self):
     self.top = tkinter.Toplevel()
     self.top.title("title")

Answer 2

看看https://www.youtube.com/watch?v=jBUpjijYtCk。完成本教程可能会对您有所帮助，但这个特定视频展示了如何处理多个页面。

像这样：

    from tkinter import *

    class Sample(Tk):
        def __init__(self,*args, **kwargs):
            Tk.__init__(self, *args, **kwargs)
            container = Frame(self)
            container.pack(side="top", fill="both", expand = True)

            self.frames = {}

            for F in (MainPage, OtherPage):
                frame=F(container, self)
                self.frames[F]=frame
                frame.grid(row=0, column=0, sticky="nsew")

            self.show_frame(MainPage)

        def show_frame(self, page):
            frame = self.frames[page]
            frame.tkraise()

    class MainPage(Frame):
        def __init__(self, parent, controller):
            Frame.__init__(self, parent)
            Label(self, text="Start Page").pack()
            Button(self, text="other page?", command=lambda:controller.show_frame(OtherPage)).pack()

    class OtherPage(Frame):
        def __init__(self, parent, controller):
            Frame.__init__(self, parent)
            Label(self, text="Next Page").pack()
            Button(self, text="back", command=lambda:controller.show_frame(MainPage)).pack()

    app = Sample()
    app.mainloop()

如何在用户单击按钮时打开一个新的 window？

How can I open a new window when the user clicks the button?

python

tkinter