save project

diy1.py

 # 利用write()帮助悟空给诺依回信吧~
 import turtle 
 screen=turtle.Screen()
-screen.bgcolor("green")
+screen.bgcolor("purple")
+len=screen.textinput("提示","请输入一个数字：")
+a1=int(len)
 pen=turtle.Pen()
 pen.penup()
 pen.goto(90,0)
-pen.write("你好呀！\n你叫什么呀？",font=("Trime",20,"normal"))
+pen.write("你好呀！\n你在干什么呢？",font=("Trime",20,"normal"))
 pen.hideturtle() 
 pen1=turtle.Pen()
 pen1.pensize(5)
 pen1.pencolor("red")
-len=42.3
 pen1.left(45)
-pen1.forward(2*len)
-pen1.circle(len,180)
+pen1.forward(2*a1)
+pen1.circle(a1,180)
 pen1.right(90)
-pen1.circle(len,180)
-pen1.forward(2*len)
+pen1.circle(a1,180)
+pen1.forward(2*a1)
 pen1.hideturtle()
 turtle.done()