python tkinter Checkbutton的新增和清除 取值

from tkinter import *

root = Tk()

name = StringVar()
check_box_list = []
ent=Entry(root,textvariable=name).pack()

def clear():
    for i in check_box_list:
        i.pack_forget()    # forget checkbutton
        # i.destroy()        # use destroy if you dont need those checkbuttons in future

def generate():
    k=name.get()
    c=Checkbutton(root,text=k)
    c.pack()
    check_box_list.append(c)  # add checkbutton

btn1=Button(root,text="Submit",command=generate)
btn1.pack()

btn2=Button(root,text="Clear",command=clear)
btn2.pack()

mainloop()

# tkinter复选框操作

import tkinter as tk

root = tk.Tk()
root.title('问卷调查')
root.geometry('220x80')  # 设置窗口大小

flag_1 = False
flag_2 = False
flag_3 = False
list_content = ['你的爱好是：']
hobby_list = ['游泳', '唱歌', '旅游']

def click_1():
    global flag_1
    flag_1 = not flag_1
    if flag_1:
        list_content.append(hobby_list[0])
    else:
        list_content.remove(hobby_list[0])
    # print('你的爱好是：', list_content)
    lab_msg['text'] = list_content

def click_2():
    global flag_2
    flag_2 = not flag_2
    if flag_2:
        list_content.append(hobby_list[1])
    else:
        list_content.remove(hobby_list[1])
    # print('你的爱好是：', list_content)
    lab_msg['text'] = list_content

def click_3():
    global flag_3
    flag_3 = not flag_3
    if flag_3:
        list_content.append(hobby_list[2])
    else:
        list_content.remove(hobby_list[2])
    # print('你的爱好是：', list_content)
    lab_msg['text'] = list_content

'''窗体控件'''
# 标题显示
lab = tk.Label(root, text='请选择你的爱好：')
lab.grid(row=0, columnspan=3, sticky=tk.W)

# 多选框
frm = tk.Frame(root)
ck1 = tk.Checkbutton(frm, text='游泳', command=click_1)
ck2 = tk.Checkbutton(frm, text='唱歌', command=click_2)
ck3 = tk.Checkbutton(frm, text='旅游', command=click_3)
ck1.grid(row=0)
ck2.grid(row=0, column=1)
ck3.grid(row=0, column=2)
frm.grid(row=1)

lab_msg = tk.Label(root, text='')
lab_msg.grid(row=2, columnspan=3, sticky=tk.W)

root.mainloop()