迭代条目

Question

我有一个关于迭代rr给出一些条目的问题。当我运行我的代码时，只显示条目数的条目。如何显示rr的条目？我只是一个初学者...无论如何，我将感谢你的所有评论。

from Tkinter import *
top = Tk()

class userinput:
    def __init__ (self):
        self.stn = 0
        self.bslist = []
        self.fslist = []

    def station (self):
        self.stn = int(E1.get())

    def readings (self):
        for i in range(self.stn-1):
        rr = float(E2.get())

L1 = Label(top, text = "Enter number of entries")
L1.pack()

E1 = Entry(top, bd = 10)
E1.pack()

B1 = Button (top, text = "Enter", command = userinput.readings)
B1.pack()

E2 = Label(top,bd = 10)
E2.pack()

ui = userinput()
ui.readings()

top.mainloop ()