# p17_13.py
from tkinter import *

root = Tk()

Label(root, text="账号：").grid(row=0)
Label(root, text="密码：").grid(row=1)

v1 = StringVar()
v2 = StringVar()

e1 = Entry(root, textvariable=v1)
e2 = Entry(root, textvariable=v2, show="*")
e1.grid(row=0, column=1, padx=10, pady=5)
e2.grid(row=1, column=1, padx=10, pady=5)

def show():
    print("账号：%s" % v1.get())
    print("密码：%s" % v2.get())
    e1.delete(0, END)
    e2.delete(0, END)

Button(root, text="芝麻开门", width=10, command=show)\
             .grid(row=3, column=0, sticky=W, padx=10, pady=5)
Button(root, text="退出", width=10, command=root.quit)\
             .grid(row=3, column=1, sticky=E, padx=10, pady=5)

mainloop()
