save project

diy1.py

 import turtle
 import turtle
 pen=turtle.Pen()
 pen=turtle.Pen()
 b=turtle.Screen()
 b=turtle.Screen()
-b.bgcolor("blue")
+len=100
+b.bgcolor("pink")
 pen.penup()
 pen.penup()
 pen.goto(100,-100)
 pen.goto(100,-100)
-pen.write("你好！你好！你好！\n你好！你好！你好！你好！",font=("time",13,"normal"))
+pen.write("你好！你好！你好！\n你好！你好！你好！\n你好！",font=("time",13,"normal"))
 pen1=turtle.Pen()
 pen1=turtle.Pen()
 pen1.left(45)
 pen1.left(45)
-pen1.forward(100)
-pen1.circle(50,180)
+pen1.forward(len)
+pen1.circle(len/2,180)
 pen1.right(90)
 pen1.right(90)
-pen1.circle(50,180)
-pen1.forward(100)
+pen1.circle(len/2,180)
+pen1.forward(len)
 turtle.done()
 turtle.done()
\ No newline at end of file