# -*- coding: utf-8 -*- """ Created on Tue Oct 23 20:56:51 2018

@author: lishuwei """

file名：li import os

def li():        d=float(input('Please enter what is your initial balance: \n'))     p=float(input('Please input what is the interest rate (as a number): \n'))     d=float(d+d*(p/100))     year=1     while year<=5:         d=float(d+d*p/100)         print('Your new balance after year:',year,'is',d)         year=year+1     print('your final year is',d)   if __name__=="__main__":     print(os.getcwd()) 優點：檔案呼叫時候，可以不用執行 print(os.getcwd())，測試時可以用,呼叫的格式

import  selffun

selffun.li()