如何将Tkinter窗口设置为固定大小？

要让你的Tkinter窗口保持固定大小，只需调用窗口对象的resizable()方法，传入两个False参数，分别禁止水平和垂直方向的调整。以下是具体修改方案：

核心修改点 #

你可以选择两种位置添加固定代码，推荐放在类初始化中更规范：

方案一：在SeaofBTCapp类的初始化方法中添加 #

找到SeaofBTCapp的__init__方法，在父类初始化完成后添加一行代码：

self.resizable(False, False)

方案二：在实例化窗口后添加 #

在app = SeaofBTCapp()之后添加：

app.resizable(False, False)

如果需要先指定窗口尺寸再固定，可搭配geometry()方法：

self.geometry("400x300")  # 设置窗口为400宽、300高
self.resizable(False, False)

完整修改后的代码 #

import tkinter as tk


LARGE_FONT= ("Verdana", 12)


class SeaofBTCapp(tk.Tk):

    def __init__(self, *args, **kwargs):
        
        tk.Tk.__init__(self, *args, **kwargs)
        # 添加固定窗口大小的代码
        self.resizable(False, False)
        container = tk.Frame(self)

        container.pack(side="top", fill="both", expand = False)

        container.grid_rowconfigure(0, weight=1)
        container.grid_columnconfigure(0, weight=1)

        self.frames = {}

        for F in (StartPage, PageOne, PageTwo):

            frame = F(container, self)

            self.frames[F] = frame

            frame.grid(row=0, column=0, sticky="nsew")
            

        self.show_frame(StartPage)

    def show_frame(self, cont):

        frame = self.frames[cont]
        frame.tkraise()

        
class StartPage(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self,parent)

        label = tk.Label(self, text="NC's Ice-Cream Shop", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button = tk.Button(self, text=">>",
                            command=lambda: controller.show_frame(PageOne))
        button.pack()

        #button2 = tk.Button(self, text="Visit Page 2",
            #                command=lambda: controller.show_frame(PageTwo))
        #button2.pack()


class PageOne(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="Order Details", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button1 = tk.Button(self, text="<<",
                            command=lambda: controller.show_frame(StartPage))
        button1.pack()

        button2 = tk.Button(self, text=">>",
                            command=lambda: controller.show_frame(PageTwo))
        button2.pack()


class PageTwo(tk.Frame):

    def __init__(self, parent, controller):
        tk.Frame.__init__(self, parent)
        label = tk.Label(self, text="Receipt", font=LARGE_FONT)
        label.pack(pady=10,padx=10)

        button1 = tk.Button(self, text="<<",
                            command=lambda: controller.show_frame(PageOne))
        button1.pack()

        button2 = tk.Button(self, text="New",
                            command=lambda: controller.show_frame(StartPage))
        button2.pack()
        



app = SeaofBTCapp()
app.mainloop()

内容的提问来源于stack exchange，提问作者Nitya