通过小例子帮助我们更好的理解如何使用tkinter控件的 pack_forget(),grid_forget(),grid_remove()

https://www.delftstack.com/howto/python-tkinter/how-to-hide-recover-and-delete-tkinter-widgets/

1. pack_forget() 方法来隐藏Tkinter控制
与pack()方法相反，我们可以通过调用pack_forget()方法来隐藏Tkinter控件
try:
    import Tkinter as tk
except:
    import tkinter as tk
    

class Test():
   def __init__(self):
       self.root = tk.Tk()
       self.label=tk.Label(self.root,
                           text = "Label")
       self.buttonForget = tk.Button(self.root,
                          text = 'Click to hide Label',
                          command=lambda: self.label.pack_forget())
       self.buttonRecover = tk.Button(self.root,
                          text = 'Click to show Label',
                          command=lambda: self.label.pack())       
       
       self.buttonForget.pack()
       self.buttonRecover.pack()
       self.label.pack(side="bottom")
       self.root.mainloop()

   def quit(self):
       self.root.destroy()
        
app = Test()



点"Click to hide Label"按钮，通过调用pack_forget()方法，将会隐藏Label标签

点"Click to show Label"按钮，通过执行pack()方法，程序会再次在界面显示Label标签
grid_forget() 方法来隐藏控件
如果控制是用grid()方法来绘制的，可以通过grid_forget()方法来隐藏控件
try:
    import Tkinter as tk
except:
    import tkinter as tk
    

class Test():
   def __init__(self):
       self.root = tk.Tk()
       self.label=tk.Label(self.root,
                           text = "Label")
       self.buttonForget = tk.Button(self.root,
                          text = 'Click to hide Label',
                          command=lambda: self.label.grid_forget())
       self.buttonRecover = tk.Button(self.root,
                          text = 'Click to show Label',
                          command=lambda: self.label.grid())       
       
       self.buttonForget.grid(column=0, row=0, padx=10, pady=10)
       self.buttonRecover.grid(column=0, row=1, padx=10,  pady=10)
       self.label.grid(column=0, row=2, padx=10, pady=10)
       self.root.mainloop()

   def quit(self):
       self.root.destroy()
        
app = Test()



当你执行了隐藏按钮的动作后，会发现label标签的原始位置发生了变化。如果想让它回到原始位置，

那么可行的方法是用grid_remove()主法来操作。
用grid_remove()方法来保持隐藏控制的可再现位置
grid_remove()方法在隐藏控件的同时会记住控件行，列位置属性便于恢复
try:
    import Tkinter as tk
except:
    import tkinter as tk
    

class Test():
   def __init__(self):
       self.root = tk.Tk()
       self.label=tk.Label(self.root,
                           text = "Label")
       self.buttonForget = tk.Button(self.root,
                          text = 'Click to hide Label',
                          command=lambda: self.label.grid_remove())
       self.buttonRecover = tk.Button(self.root,
                          text = 'Click to show Label',
                          command=lambda: self.label.grid())       
       
       self.buttonForget.grid(column=0, row=0, padx=10, pady=10)
       self.buttonRecover.grid(column=0, row=1, padx=10,  pady=10)
       self.label.grid(column=0, row=2, padx=10, pady=20)
       self.root.mainloop()

   def quit(self):
       self.root.destroy()
        
app = Test()


通地destroy方法来删除控件
try:
    import Tkinter as tk
except:
    import tkinter as tk
    

class Test():
   def __init__(self):
       self.root = tk.Tk()
       self.label=tk.Label(self.root,
                           text = "Label")
       self.buttonForget = tk.Button(self.root,
                          text = 'Click to hide Label',
                          command=lambda: self.label.destroy())
       self.buttonRecover = tk.Button(self.root,
                          text = 'Click to show Label',
                          command=lambda: self.label.pack())       
       
       self.buttonForget.pack()
       self.buttonRecover.pack()
       self.label.pack(side="bottom")
       self.root.mainloop()

   def quit(self):
       self.root.destroy()
        
app = Test()

执行删除操作后，如果再次执行pack()方法，程序则会报错
Exception in Tkinter callback
Traceback (most recent call last):
  File "D:\WinPython\WPy-3661\python-3.6.6.amd64\lib\tkinter\__init__.py", line 1702, in __call__
    return self.func(*args)
  File "C:\Users\jinku\OneDrive\Bureaublad\test.py", line 17, in <lambda>
    command=lambda: self.label.pack())
  File "D:\WinPython\WPy-3661\python-3.6.6.amd64\lib\tkinter\__init__.py", line 2140, in pack_configure
    + self._options(cnf, kw))
_tkinter.TclError: bad window path name ".!label"

Button 控件是一个标准的 Tkinter 部件，用于实现各种按钮。按钮可以包含文本或图
像，还可以关联 Python 函数。
Tkinter 的按钮被按下时，会自动调用该函数。
按钮文本可跨越一个以上的行。此外，文本字符可以有下划线，例如标记的键盘快捷
键。默认情况下，使用 Tab 键可以移动到一个按钮部件，用法如下：
Entry(根对象, [属性列表])，即Entry(root, option...)
常用的属性列表如下：
Button 实例：
实例1：创建按钮，代码如下：
from tkinter import*
#初始化Tk()
myWindow = Tk()
#设置标题
myWindow.title('Python GUI Learning')
#创建两个按钮
b1=Button(myWindow, text='button1',bg="red", relief='raised', width=8, height=2)
b1.grid(row=0, column=0, sticky=W, padx=5,pady=5)
b2=Button(myWindow, text='button2', font=('Helvetica 10 bold'),width=8, height=2)
b2.grid(row=0, column=1, sticky=W, padx=5, pady=5)
#进入消息循环
myWindow.mainloop()
运行结果：
实例2：创建按钮并绑定响应函数，输入半径，计算圆面积并输出，代码如下：
from tkinter import*
def printInfo():
　　#清理entry2
　　entry2.delete(0, END)
　　#根据输入半径计算面积
　　R=int(entry1.get())
　　S= 3.1415926*R*R
　　entry2.insert(10, S)
　　#清空entry2控件
　　entry1.delete(0, END)
#初始化Tk()
myWindow = Tk()
#设置标题
myWindow.title('Python GUI Learning')
#标签控件布局
Label(myWindow, text="input").grid(row=0)
Label(myWindow, text="output").grid(row=1)
#Entry控件布局
entry1=Entry(myWindow)
entry2=Entry(myWindow)
entry1.grid(row=0, column=1)
entry2.grid(row=1, column=1)
#Quit按钮退出；Run按钮打印计算结果
Button(myWindow, text='Quit', command=myWindow.quit).grid(row=2, column=0,sticky=W, padx=5, pady=5)
Button(myWindow, text='Run', command=printInfo).grid(row=2, column=1, sticky=W, padx=5, pady=5)
#进入消息循环
myWindow.mainloop()
运行结果：
输入半径：
点击‘Run’计算面积：
 相关学习资料：
Python Tkinter 绘图项目​ke.qq.com
Python Tkinter 绘图项目​edu.csdn.net

本文中介绍Python自带GUI模块(Tkinter)控件操作
导入需要的模块
import tkinter as tk
from tkinter import ttk
import random,string
windows = tk.Tk()
windows.title("TKinter表格操作")    #软件打开后显示的名称
输入框
self.tips_text = tk.Entry(windows, width=25, font=12, bd=7)
self.tips_text.insert(tk.END, "TKinter表格操作")    #向输入框插入
self.tips_text.configure(state="disabled")      #将输入框状态设置为不可写只可读,默认可写
self.tips_text.grid(row=0, column=0)
下拉框
self.number = tk.StringVar()
self.numberChosen = ttk.Combobox(windows, width=8, textvariable=self.number, height=3)
self.numberChosen['values'] = ("name", "sex", "classroom")     # 设置下拉列表的值
self.numberChosen.grid(column=1, row=0)      # 设置其在界面中出现的位置  column代表列   row 代表行
self.numberChosen.current(0)    # 设置下拉列表默认显示的值，0为 numberChosen['values'] 的下标值
标签
self.status = tk.StringVar()
self.status.set("注册成功: {}个".format(self.a))    #设置标签内容
self.lblStatus = tk.Label(windows, textvariable=self.status, anchor='c')
self.lblStatus.grid(row=2, column=1, columnspan=20, sticky=tk.S + tk.E)
按钮
self.Login_Button = tk.Button(windows, text="点击自动注册", width=10, height=1, command=self.run)
self.Login_Button.grid(row=0, column=2)
文本框
self.text = tk.StringVar()
self.text = tk.Text(windows, width=75, height=20,)
self.text.grid(row=1, column=0, columnspan=20, rowspan=2)
self.text.get(1.0, "end")      #获取文本框所有内容
表格
self.columns = ("phone", "password", "state")
self.tables = ttk.Treeview(windows, show="headings", columns=self.columns, selectmode=tk.BROWSE)
self.tables.column("phone", anchor="center", width=130)
self.tables.column("password", anchor="center", width=150)
self.tables.column("state", anchor="center", width=100)
self.tables.heading("phone", text="手机号")
self.tables.heading("password", text="密码")
self.tables.heading("state", text="注册状态")
self.tables.grid(row=1, column=0, columnspan=3)
整体代码
# coding : utf-8
"""
Author : soliton
Email  : soliton.wang@gmail.com
QQ     : 1670829014
"""
import tkinter as tk
from tkinter import ttk
import random,string
windows = tk.Tk()
#  设置图标
windows.iconbitmap('favicon.ico')
windows.title("TKinter表格操作")
class Display:
def __init__(self):
self.a = 0
self.b = 0
self.c = 0
self.insert_execl = []
self.tips_text = tk.Entry(windows, width=25, font=12, bd=7)
self.tips_text.insert(tk.END, "TKinter表格操作")
self.tips_text.configure(state="disabled")
self.tips_text.grid(row=0, column=0)
self.number = tk.StringVar()
self.numberChosen = ttk.Combobox(windows, width=8, textvariable=self.number, height=3)
self.numberChosen['values'] = ("name", "sex", "classroom")     # 设置下拉列表的值
self.numberChosen.grid(column=1, row=0)      # 设置其在界面中出现的位置  column代表列   row 代表行
self.numberChosen.current(0)    # 设置下拉列表默认显示的值，0为 numberChosen['values'] 的下标值
self.columns = ("phone", "password", "state")
self.tables = ttk.Treeview(windows, show="headings", columns=self.columns, selectmode=tk.BROWSE)
self.tables.column("phone", anchor="center", width=130)
self.tables.column("password", anchor="center", width=150)
self.tables.column("state", anchor="center", width=100)
self.tables.heading("phone", text="手机号")
self.tables.heading("password", text="密码")
self.tables.heading("state", text="注册状态")
self.tables.grid(row=1, column=0, columnspan=3)
self.status = tk.StringVar()
self.status.set("注册成功: {}个".format(self.a))
self.lblStatus = tk.Label(windows, textvariable=self.status, anchor='c')
self.lblStatus.grid(row=2, column=1, columnspan=20, sticky=tk.S + tk.E)
self.status_error = tk.StringVar()
self.status_error.set("注册失败: {}个".format(self.b))
self.lblStatus_error = tk.Label(windows, textvariable=self.status_error, anchor='c')
self.lblStatus_error.grid(row=2, column=0, columnspan=20, sticky=tk.S)
self.Login_Button = tk.Button(windows, text="点击自动注册", width=10, height=1, command=self.run)
self.Login_Button.grid(row=0, column=2)
def run(self):
self.password = ''.join(random.sample(string.ascii_lowercase, 8))
self.username = ''.join(random.sample(string.ascii_uppercase, 5))
self.insert_execl.clear()
self.insert_execl.append(self.username)
self.insert_execl.append(self.password)
self.insert_execl.append('注册成功')
print(self.insert_execl)
if "注册成功" in self.insert_execl:
self.tables.insert('', self.c,values=("{}".format(self.insert_execl[0]), self.insert_execl[1], self.insert_execl[2]))
self.a += 1
self.c += 1
self.status.set("注册成功: {}个".format(self.a))
else:
self.tables.insert('', self.c,values=("{}".format(self.insert_execl[0]), self.insert_execl[1], self.insert_execl[2]))
self.b +=1
self.c += 1
self.status_error.set("注册失败: {}个".format(self.b))
if __name__ == '__main__':
Display()
windows.mainloop()
以上代码可用，还有些控件等下期更新，更新时间(随缘),如果有不懂的地方也可以问我,一下是联系方式：
Email  : soliton.wang@gmail.com
QQ     : 1670829014
Q群   ：727588508

本文实例展示了Python Tkinter基础控件的用法，分享给大家供大家参考之用。具体方法如下：
# -*- coding: utf-8 -*-
from Tkinter import *
def btn_click():
b2['text'] = 'clicked'
evalue = e.get()
print 'btn Click and Entry value is %s' % evalue
def btn_click_bind(event):
print 'enter b2'
def show_toplevel():
top = Toplevel()
top.title('2号窗口')
Label(top, text='这是2号窗口').pack()
root = Tk()
root.title('1号窗口')
# 显示内置图片
# x = Label(root, bitmap='warning')
l = Label(root, fg='red', bg='blue',text='wangwei', width=34, height=10)
l.pack()
# command 指定按钮调用的函数
b = Button(root, text='clickme', command=btn_click)
b['width'] = 10
b['height'] = 2
b.pack()
# 使用bind 方式关联按钮和函数
b2 = Button(root, text = 'clickme2')
b2.configure(width = 10, height = 2, state = 'disabled')
b2.bind("", btn_click_bind)
b2.pack()
# 弹出Toplevel窗口
b3 = Button(root, text = 'showToplevel', command=show_toplevel)
b3.pack()
# 输入框
e = Entry(root, text = 'input your name')
e.pack()
# 密码框
epwd = Entry(root, text = 'input your pwd', show = '*')
epwd.pack()
# 菜单
def menu_click():
print 'I am menu'
xmenu = Menu(root)
submenu = Menu(xmenu, tearoff = 0)
for item in ['java', 'cpp', 'c', 'php']:
xmenu.add_command(label = item, command = menu_click)
for item in ['think in java', 'java web', 'android']:
submenu.add_command(label = item, command = menu_click)
xmenu.add_cascade(label = 'progame', menu = submenu)
# 弹出菜单
def pop(event):
submenu.post(event.x_root, event.y_root)
# 获取鼠标左键点击的坐标
def get_clickpoint(event):
print event.x, event.y
# frame
for x in ['red', 'blue', 'yellow']:
Frame(height = 20, width = 20, bg = x).pack()
root['menu'] = xmenu
root.bind('', pop)
root.bind('', get_clickpoint)
root.mainloop()
运行效果如下图所示：
希望本文所述对大家的Python程序设计有所帮助。