frame3= Frame(self.window) frame3.pack(fill='both', expand= 1,) scrollbar =Scrollbar(frame3) scrollbar.pack(side=RIGHT, fill=Y) self.records =Listbox(frame3,yscrollcommand=scrollbar.set) self.records.pack(fill="both", expand=1.,padx = 5.,pady = 5) scrollbar.config(command= self.records.yview) 重构这段代码

可以将这段代码重构为一个函数，使其更加可复用和简洁：

def create_scrollable_listbox(parent, items):
    frame = Frame(parent)
    frame.pack(fill='both', expand=1)

    scrollbar = Scrollbar(frame)
    scrollbar.pack(side=RIGHT, fill=Y)

    listbox = Listbox(frame, yscrollcommand=scrollbar.set, **items)
    listbox.pack(fill='both', expand=1, padx=5, pady=5)

    scrollbar.config(command=listbox.yview)

    return listbox

然后在需要使用可滚动列表框的地方，调用这个函数即可：

self.records = create_scrollable_listbox(self.window, items={})

相关问题

import tkinter as tk class Three_layout(): def __init__(self, top): self.top = top self.frame = tk.Frame(self.top, bg='Gold', width=1100, height=234, highlightthickness=2, highlightbackground='Black') self.frame.place(x=0, y=670) self.canvas = tk.Canvas(self.frame, width=1077, height=226, bg='Gold') self.canvas.pack(side='left', fill='both', expand=True) self.scrollbar = tk.Scrollbar(self.frame, command=self.canvas.yview, orient=tk.VERTICAL) self.scrollbar.pack(side='right', fill='y') self.canvas.configure(yscrollcommand=self.scrollbar.set) self.canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=True) self.button_frame = tk.Frame(self.canvas, bg='Yellow') self.canvas.create_window((0, 0), window=self.button_frame, anchor="nw") self.Content() self.Text_Add() def Content(self): self.text = tk.Text(self.button_frame, width=1077) self.text.pack(side='left', fill='both', expand=True) self.text.insert('end', f'\n') self.text.config(state='disabled') self.button_frame.update_idletasks() self.canvas.configure(scrollregion=self.canvas.bbox("all")) def Text_Add(self): self.text.insert('end', "Hello, world!")为什么没有显示hello,world

在你的代码中，你在`Text_Add()`方法中调用了`insert()`方法，但是你没有将`state`设置为`normal`，这会导致你无法在`Text`控件中插入文本。所以你需要在调用`insert()`方法之前，将`state`设置为`normal`，插入完文本之后再将`state`设置为`disabled`，以保持`Text`控件的只读状态。修改后的代码如下：

import tkinter as tk

class Three_layout():
    def __init__(self, top):
        self.top = top
        self.frame = tk.Frame(self.top, bg='Gold', width=1100,
                              height=234, highlightthickness=2, highlightbackground='Black')
        self.frame.place(x=0, y=670)

        self.canvas = tk.Canvas(self.frame, width=1077, height=226, bg='Gold')
        self.canvas.pack(side='left', fill='both', expand=True)

        self.scrollbar = tk.Scrollbar(self.frame, command=self.canvas.yview, orient=tk.VERTICAL)
        self.scrollbar.pack(side='right', fill='y')

        self.canvas.configure(yscrollcommand=self.scrollbar.set)
        self.canvas.pack(side=tk.LEFT, fill=tk.BOTH, expand=True)

        self.button_frame = tk.Frame(self.canvas, bg='Yellow')
        self.canvas.create_window((0, 0), window=self.button_frame, anchor="nw")

        self.Content()
        self.Text_Add()

    def Content(self):
        self.text = tk.Text(self.button_frame, width=1077)
        self.text.pack(side='left', fill='both', expand=True)
        self.text.insert('end', f'\n')
        self.text.config(state='disabled')
        self.button_frame.update_idletasks()
        self.canvas.configure(scrollregion=self.canvas.bbox("all"))

    def Text_Add(self):
        self.text.config(state='normal')
        self.text.insert('end', "Hello, world!")
        self.text.config(state='disabled')

root = tk.Tk()
app = Three_layout(root)
root.mainloop()

在修改后的代码中，我将`Text_Add()`方法中的`self.text.config(state='normal')`添加了进去，以便在调用`insert()`方法之前将`state`设置为正常状态。

class Lnput_lnitialization(): def __init__(self, top, Number_of_rows): self.top = top int(data_demo.window_width // 3.9875) int(data_demo.window_height // 1.138) self.frame = tk.Frame(self.top, bg='Black', highlightthickness=2, highlightbackground='Black') self.frame.place(relx=0.739, rely=0.083, width=int(data_demo.window_width // 3.87), height=int(data_demo.window_height // 1.15)) self.canvas = tk.Canvas(self.frame) self.canvas.place(relx=0, rely=0, width=int(data_demo.window_width // 3.9875), height=int(data_demo.window_height // 1.15)) scrollbar = tk.Scrollbar(self.frame, command=self.canvas.yview) scrollbar.pack(side="right", fill="y") self.canvas.configure(yscrollcommand=scrollbar.set) self.button_frame = tk.Frame(self.canvas, bg='Yellow') self.button_frame.pack_propagate(False) # 禁止自动调整大小 self.button_frame.pack(fill=BOTH, expand=True) # 使其自适应大小 self.canvas.create_window((0, 0), window=self.button_frame, anchor="nw") self.button_frame.columnconfigure(0, weight=1) self.button_frame.columnconfigure(1, weight=1) self.button_frame.columnconfigure(2, weight=1) self.button_frame.columnconfigure(3, weight=1) self.button_frame.columnconfigure(4, weight=1) self.button_frame.columnconfigure(5, weight=1) self.Content(Number_of_rows)为什么用不了滚轮了

这段代码中使用了tkinter的Canvas组件来创建一个可滚动的窗口，但是在代码中并没有对Canvas绑定滚轮事件的处理程序。因此，当鼠标滚轮事件发生时，Canvas并没有响应。解决方法是在代码中使用canvas.bind()方法绑定滚轮事件，并在绑定的处理程序中调用Canvas的yview()方法来实现滚动。具体实现可以参考下面的示例代码：

class Lnput_lnitialization():
    def __init__(self, top, Number_of_rows):
        self.top = top
        int(data_demo.window_width // 3.9875)
        int(data_demo.window_height // 1.138)
        self.frame = tk.Frame(self.top, bg='Black', highlightthickness=2, highlightbackground='Black')
        self.frame.place(relx=0.739, rely=0.083, width=int(data_demo.window_width // 3.87), height=int(data_demo.window_height // 1.15))
        self.canvas = tk.Canvas(self.frame)
        self.canvas.place(relx=0, rely=0, width=int(data_demo.window_width // 3.9875), height=int(data_demo.window_height // 1.15))
        scrollbar = tk.Scrollbar(self.frame, command=self.canvas.yview)
        scrollbar.pack(side="right", fill="y")
        self.canvas.configure(yscrollcommand=scrollbar.set)
        self.button_frame = tk.Frame(self.canvas, bg='Yellow')
        self.button_frame.pack_propagate(False)  # 禁止自动调整大小
        self.button_frame.pack(fill=BOTH, expand=True)  # 使其自适应大小
        self.canvas.create_window((0, 0), window=self.button_frame, anchor="nw")
        self.button_frame.columnconfigure(0, weight=1)
        self.button_frame.columnconfigure(1, weight=1)
        self.button_frame.columnconfigure(2, weight=1)
        self.button_frame.columnconfigure(3, weight=1)
        self.button_frame.columnconfigure(4, weight=1)
        self.button_frame.columnconfigure(5, weight=1)
        self.Content(Number_of_rows)
        self.canvas.bind("<MouseWheel>", self.on_mousewheel)

    def on_mousewheel(self, event):
        self.canvas.yview_scroll(-1 * int(event.delta / 120), "units")