python 在窗口中显示一个按钮，一个文本框

def getEntry1():
    print(s.get())

win = tk.Tk()
s = tk.StringVar()
e = ttk.Entry(win,width = 10,textvariable = s)
e.grid(column = 0 ,row = 0)
b = ttk.Button(text = "OK",command=getEntry1)
b.grid(column = 1, row = 0)
win.mainloop()