# encoding: utf-8
# Python 3.9.0
# turtle画出不同颜色的同心环/同心圆
import turtle
pen=turtle.Turtle()
n=100
colors=['#0000FF','#FF0000','#FFD700','#008000','#800080']
for i in range(5):
pen.fillcolor(colors[i])
pen.begin_fill()
pen.penup()
pen.goto(0,20*(i+1))
pen.pendown()
pen.circle(n-i*20)
pen.end_fill()
turtle.done()
追问请问这个从键盘输入一个字符串,将其写入文件,然后从文件读取该字符串,按相反的顺序输出。用python怎么写呢??
来自:求助得到的回答