from tkinter import *
class AA:
def __init__(self):
window=Tk()
Label(window,text="请输入密码:").grid(row=1,column=1)
self.var=StringVar()
entry=Entry(window,textvariable=self.var,show="*")
entry.grid(row=1,column=2)
Label(window,text="输入的密码是:").grid(row=2,column=1)
Label(window,textvariable=self.var).grid(row=2,column=2)
self.var.trace("w", self.callbackw)
window.mainloop()
def callbackw(self,*args):
print("你的密码是:",self.var.get())
AA()
# 参考文献:
#http://effbot.org/tkinterbook/entry.htm