我的tkinter学习笔记2

#coding:utf-8
from tkinter import *

# 定义一个root主窗口
root = Tk()
root.title("应用程序窗口")
# 定义两个变量，用于判断复选框状态
box_1 = False
box_2 = False
# 列表，用于存放选中内容
List_Content = []

def click_c1():
    global box_1
    # 复选框被选中，box_1置为True
    box_1 = not box_1
    if box_1:
        List_Content.append('Windows')
        l['text'] = List_Content
    else:
        List_Content.remove('Windows')
        l['text'] = List_Content

def click_c2():
    global box_2
    box_2 = not box_2
    if box_2:
        List_Content.append('Linux')
        l['text'] = List_Content
    else:
        List_Content.remove('Linux')
        l['text'] = List_Content

# 定义两个复选框，并绑定相关事件
ck1 = Checkbutton(root, text='Windows', command=click_c1)
ck1.grid(row=0, column=1)
ck2 = Checkbutton(root, text='Linux', command=click_c2)
ck2.grid(row=1, column=1)

l_com = Label(root, text='已选中：')
l_com.grid(row=2, column=0)

l = Label(root, text='')
l.grid(row=2, column=1)
root.mainloop()

#coding:utf-8
import tkinter as tk

#标签框架
root = tk.Tk()
root.title("应用程序窗口")
#新建标签框架
group = tk.LabelFrame(root,text="最好的语言是?")
group.pack(padx=10,pady=10)

LANGS = [("python",1),("C",2),("Java",3),("Lua",4)]

v = tk.IntVar()
for lang,num in LANGS:
    #选中后 把num的值赋给 variable
    b = tk.Radiobutton(group,text=lang,variable = v ,value =num)
    b.pack(anchor = tk.W)
l = tk.Label(root,textvariable=v)#显示标签
l.pack(side=tk.LEFT)
tk.mainloop()

#coding:utf-8
from tkinter import *
import tkinter as tk
root = Tk()
root.title('登录窗口')
# 按扭调用的函数，
def reg():
    User = e1.get()
    Pwd = e2.get()
    len_user = len(User)
    len_pwd = len(Pwd)
    if User == '111' and Pwd == '222':
        l_msg['text'] = '登陆成功'
    else:
        l_msg['text'] = '用户名或密码错误'
        e1.delete(0, len_user)
        e2.delete(0, len_pwd)

tk.Label(root, text="账号：").grid(row=0, column=0)  # 位于第0行，第0列
tk.Label(root, text="密码：").grid(row=1, column=0)  # 位于第1行，第0列

v1 = tk.StringVar()
v2 = tk.StringVar()

e1 = tk.Entry(root, textvariable=v1)
e2 = tk.Entry(root, textvariable=v2, show="*")  # show：以*显示

e1.grid(row=0, column=1, padx=10, pady=5)  # 位于第0行，第1列
e2.grid(row=1, column=1, padx=10, pady=5)  # 位于第1行，第1列
# 第三行登陆按扭，command绑定事件
b_login = Button(root, text='登陆', command=reg)
b_login.grid(row=2, column=1, sticky=E)
tk.Button(root,text="退出", command=root.quit)\
            .grid(row=2,column=2,sticky = tk.E)

def show():
    print("账号:%s" %e1.get())
    print("密码:%s" %e2.get())

tk.Button(root,text="获取信息",width=10,command=show)\
            .grid(row=2,column=0,sticky = tk.W)

# 登陆是否成功提示
l_msg = Label(root, text='')
l_msg.grid(row=3)

root.mainloop()

#coding:utf-8

import tkinter as tk

root = tk.Tk()
root.title('简易计算器')
v1 = tk.StringVar()
v2 = tk.StringVar()
v3 = tk.StringVar()
def test(content):
    return content.isdigit()  # 数字会返回true 非数字返回false

testCMD = root.register(test)
# validate触发方法是关键字触发
e1 = tk.Entry(root, width=10, textvariable=v1, validate='key', \
              validatecommand=(testCMD, "%P")).grid(row=0, column=0)

tk.Label(root, text="+").grid(row=0, column=1)  # 存放+号的
e2 = tk.Entry(root, width=10, textvariable=v2, validate='key', \
              validatecommand=(testCMD, "%P")).grid(row=0, column=2)

tk.Label(root, text="=").grid(row=0, column=3)  # 存放=号的
e3 = tk.Entry(root, textvariable=v3, state="readonly").grid(row=0, column=4)  # 只能读取

def calc():
    result = int(v1.get()) + int(v2.get())
    v3.set(str(result))

tk.Button(root, text="计算结果", command=calc).grid(row=1, column=2)
tk.mainloop()