在 Python 中使用 Tkinter GUI 时标题无法正确显示

Question

我目前正在尝试使用 Tkinter 包使用 Python 来学习制作简单的 GUI。

我为待办事项列表编写了这个程序：

import tkinter
import tkinter.messagebox
import pickle

root = tkinter.Tk()
root.title = ("To Do List")

def add_task():
    task = entry_task.get()
    if task not in ["", "Do nothing"]:
        listbox_tasks.insert(tkinter.END, task)  
        entry_task.delete(0, tkinter.END)
    else:
        tkinter.messagebox.showwarning(title="Warning!", message="Doing nothing is not an option!.")

def delete_task():
    try:
        task_index = listbox_tasks.curselection()[0]
        listbox_tasks.delete(task_index)
    except:
        tkinter.messagebox.showwarning(title="Warning!", message="You need to select a task to delete.")

def load_tasks():
    try:
        tasks = pickle.load(open("Aufgaben.txt", "rb"))  # reading binary
        listbox_tasks.delete(0, tkinter.END)
        for task in tasks:
            listbox_tasks.insert(tkinter.END, task)
    except: tkinter.messagebox.showwarning(title="Warning!", message="There is no saved file.")

def save_tasks():
    tasks = listbox_tasks.get(0, listbox_tasks.size()) 
    pickle.dump(tasks, open("Aufgaben.txt", "wb"))  # wb = write binary

frame_tasks = tkinter.Frame(root)
frame_tasks.pack()
listbox_tasks = tkinter.Listbox(frame_tasks, height=10, width=50)
listbox_tasks.pack(side=tkinter.LEFT)

scrollbar_tasks = tkinter.Scrollbar(frame_tasks)
scrollbar_tasks.pack(side=tkinter.RIGHT, fill=tkinter.Y)

listbox_tasks.config(yscrollcommand=scrollbar_tasks.set)
scrollbar_tasks.config(command=listbox_tasks.yview)

entry_task = tkinter.Entry(root, width=53)
entry_task.pack()

button_add_task = tkinter.Button(root, text="Add Task", width=48, command=add_task)
button_add_task.pack()

button_delete_task = tkinter.Button(root, text="Delete Task", width=48, command=delete_task)
button_delete_task.pack()

button_load_tasks = tkinter.Button(root, text="Load Tasks", width=48, command=load_tasks)
button_load_tasks.pack()

button_save_tasks = tkinter.Button(root, text="Save Tasks", width=48, command=save_tasks)
button_save_tasks.pack()

root.mainloop()

除了标题之外，一切都按照我想要的方式进行。

它只是在窗口栏中显示“tk”，而不是正确的标题。

为什么会出现这个问题呢？

Answer 1

尝试将标题行更改为此。

root.title("To Do List")

= 符号用于给某事物赋值。在这种情况下，您正在调用标题函数/方法，您必须在其中输入您想要作为参数的标题字符串。