Python编程|要求编写函数fn(a,n)求a+aa+aaa++⋯+aa⋯aa(n个a）之和，fn须返回的是数列和

1&＃xff0c;程序简介

• 要求编写函数fn(a,n) 求a&＃43;aa&＃43;aaa&＃43;&＃43;⋯&＃43;aa⋯aa(n个a&＃xff09;之和&＃xff0c;fn须返回的是数列和。
• 从控制台输入正整数a和n的值&＃xff08;两个值都不超过9&＃xff09;&＃xff0c;并输出fn(a,n)的结果值。

2&＃xff0c;程序代码

# -*- coding: utf-8 -*-
"""
Created on Wed Jan 12 22:58:02 2022
Function:
&＃64;author: 小梁aixj
"""
def fun(a,n):s &＃61; 1sum &＃61; 1for i in range(1,n):s &＃61; 1 &＃43; s*10sum&＃43;&＃61;sy &＃61; a *sumprint(y)
def main():while(1):a &＃61; int(input(&＃39;请输入a:&＃39;))if a>9 or a<0: print(&＃39;a的值输入错误&＃xff0c;请重新输入&＃xff1a;&＃39;)else:breakwhile(1):n &＃61; int(input(&＃39;请输入n:&＃39;))if n>9 or n<0: print(&＃39;n的值输入错误&＃xff0c;请重新输入&＃xff1a;&＃39;)else:breakfun(a,n)
if __name__ &＃61;&＃61; &＃39;__main__&＃39;:main()


3&＃xff0c;运行结果