Python tkinter-打印电流输入+；错误地，也包括以前的输入

我正在Tkinter中制作GUI，代码将打印类的一些属性。 但是，有些东西使它可以打印当前实例的属性，但也可以打印以前实例的属性（如果术语错误，很抱歉，我对这一点很陌生）

因此，在我创建的Todo列表GUI中，我将输入一个任务并指定一些属性，然后打印所有属性。 然后，任务名称显示在列表框中，任务的所有属性应同时打印到终端-但是，在这里，它将打印我刚才输入的当前属性以及先前添加的任务的属性

这是代码，

print

命令位于

def show_task（）：

函数中

from tkcalendar import * # Calendar module
import tkinter.messagebox # Import the messagebox module

task_list = []
task_types = ['Sparetime', 'School', 'Work']

class Task:
    def __init__(self, n, type_, i, m, p, h): #(h, w=8, p, u, n, v):
        self.name = n
        self.type = type_
        self.impact = i
        self.manageability = m
        self.proximity = p
        self.hours = h
        #self.connectivity = c
        ##self.work = w ##hours of work per day
        ##self.urgency = u
        ##self.note = n
        ##self.value = v

def show_tasks():
   # for widget in task_frame.winfo_children():
       # widget.destroy()

    for task in task_list:
        #listbox_tasks.insert(tkinter.END, *task_list) #(task_frame, text=f'{task.name} \n Type: {task.type} | Impact: {task.impact}| Manageability: {task.manageability} | Proximity: {task.proximity}').pack(fill='x')  
        print(
            'Task:'+task.name +
            '\n' +
            'Type:' + task.type + '\n' +
            'Impact:' + task.impact + '\n' +
            'Manageability:' + task.manageability + '\n' +
            'Proximity(Deadline):' + task.proximity + '\n' +
            'Hours:' + task.hours + '\n'
            )

def open_add_task():
    taskwin = Toplevel(root)
    taskwin.focus_force()
    
    #TITLE
    titlelabel = Label(taskwin, text='Title task concisely:').grid(column=1, row=0)
    name_entry = Entry(taskwin, width=40, justify='center')
    name_entry.grid(column=1, row=1)

    #TYPE
    typelabel = Label(taskwin, text='Type').grid(column=0, row=2)
    type_var = StringVar(value=task_types[2])
    OptionMenu(taskwin, type_var, *task_types).grid(column=0, row=3, sticky='nsew')

    #IMPACT
    impactlabel = Label(taskwin, text='Impact').grid(column=1, row=2)
    imp_var = StringVar(value=0)
    OptionMenu(taskwin, imp_var, *range(0, 10+1)).grid(column=1, row=3, sticky='ns')

    #MANAGEABILITY
    manlabel = Label(taskwin, text='Manageability').grid(column=2, row=2)
    man_var = StringVar(value=0)
    OptionMenu(taskwin, man_var, *range(0, 10+1)).grid(column=2, row=3, sticky='nsew')

    #PROXIMITY
    proximity_label = Label(taskwin, text = 'Choose a deadline', justify='center')
    proximity_label.grid(column=1, row=4)
    cal = Calendar(taskwin, selectmode='day', year=2021, month=4, day=27)
    cal.grid(column=1, row=5)
    def get_date():
        proximity_output_date.config(text=cal.get_date()) ##the .config didn't work until i did .grid(column=, row=) on seperate lines



    #HOURS(required)
    hourlabel = Label(taskwin, text='Whole hours \n required').grid(column=1, row=16)
    hour_entry = Entry(taskwin, width=4, justify='center')
    hour_entry.grid(column=1, row=17)

    def add_task():
        if name_entry.get() != '': # If textbox inputfield is NOT empty do this:
            task_list.append(Task(name_entry.get(), type_var.get(), imp_var.get(), man_var.get(), cal.get_date(), hour_entry.get()))
            show_tasks()
            listbox_tasks.insert(tkinter.END, name_entry.get())
            name_entry.delete(0, tkinter.END)
            taskwin.destroy()
        else:
            tkinter.messagebox.showwarning(title='Whoops', message='You must enter a task')
        
    next_button = Button(taskwin, text='Next', command=add_task).grid(column=2, row=18, sticky='ew')
    

def sort_tasks():
    pass
def delete_task():
    pass
    #try:
        #task_index = listbox_tasks.curselection()[0]
        #listbox_tasks.delete(task_index)
    #except:
        #tkinter.messagebox.showwarning(title='Oops', message='You must select a task to delete')

def save_tasks():
    pass
    #tasks = listbox_tasks.get(0, listbox_tasks.size())
    #pickle.dump(tasks, open('tasks.dat', 'wb'))
    


    
    
    
    

root = Tk()








task_frame = Frame()
# Create UI
your_tasks_label = Label(root, text='THESE ARE YOUR TASKS:', font=('Roboto',10, 'bold'), justify='center')
your_tasks_label.pack()


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

listbox_tasks = tkinter.Listbox(root, height=10, width=50, font=('Roboto',10), justify='center') # tkinter.Listbox(where it should go, height=x, width=xx)
listbox_tasks.pack()

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

try:
    #tasks = pickle.load(open('tasks.dat', 'rb'))
    listbox_tasks.delete(0, tkinter.END)
    for task in task_list:
        listbox_tasks.insert(tkinter.END, task)
except:
    tkinter.messagebox.showwarning(title='Phew', message='You have no tasks')

#BUTTONS
Add_Button = Button(root, text='Add New', width=42, command=open_add_task)
Add_Button.pack()

button_delete_task = Button(root, text='Delete task', width=42, command=delete_task)
button_delete_task.pack()


button_save_tasks = Button(root, text='Save tasks', width=42, command=save_tasks)
button_save_tasks.pack()

#sort_type = StringVar(value='All')
#OptionMenu(btn_frame, sort_type, 'All', *task_types).grid(column=0, row=0, sticky='nsew')

#sort_imp = StringVar(value='Any')
#OptionMenu(btn_frame, sort_imp,'Any', *range(0, 10+1)).grid(column=1, row=0, sticky='nsew')

#Button(btn_frame, text='Sort', command=sort_tasks).grid(column=1, row=1, sticky='nsew')
root.mainloop()

替换：

for task in task_list:

与：

---

因为您希望打印单个任务的详细信息，而不是列表中的每个任务。您还需要取消打印语句。

因为在

show_tasks（）

中有一个

for

循环，它打印

task_列表中的所有任务？
task = task_list[-1]