save project

a.py

 import turtle
 pen=turtle.Pen()
 screen=turtle.Screen()
-a=60
+pen.fillcolor("red")
+pen.penup()
+pen.goto(0,-100)
+pen.write("你好呀",font=("Times",20,"normal"))
+pen.goto(0,0)
+pen.pendown()
+pen.begin_fill()
+a=screen.textinput("提示","你想要多大？")
+a=int(a)
 screen.bgcolor("green")
 pen.left(45)
 pen.forward(a*2)
@@ -9,4 +17,6 @@ pen.circle(a,180)
 pen.right(90)
 pen.circle(a,180)
 pen.forward(a*2)
+pen.end_fill()
+pen.hideturtle()
 turtle.done()
\ No newline at end of file