save project

diy1.py

 import turtle
 import turtle
 screen=turtle.Screen()
 screen=turtle.Screen()
 screen.bgcolor("pink")
 screen.bgcolor("pink")
+len = screen.textinput("提示框","请输入大小")
+len=int(len)
 pen=turtle.Pen()
 pen=turtle.Pen()
 pen.penup()
 pen.penup()
 pen.goto(100,-100)
 pen.goto(100,-100)
@@ -10,7 +12,8 @@ pen.hideturtle()
 pen1=turtle.Pen()
 pen1=turtle.Pen()
 pen1.pencolor("red")
 pen1.pencolor("red")
 pen1.pensize(3)
 pen1.pensize(3)
-len = 100
+
+
 pen1.left(45)
 pen1.left(45)
 pen1.forward(len*2)
 pen1.forward(len*2)
 pen1.circle(len,180)
 pen1.circle(len,180)