save project

diy1.py

 # 悟空想海龟作图画出弹簧隧道，但是出现了bug，运行不了，请你帮助他，修改bug~
 import turtle
-
 pen = turtle.Pen()
-screen = urtle.Screen()
+screen = turtle.Screen()
 pen.speed('fast')
 pen.hideturtle()
 screen.bgcolor('black')
-
 i=0
 while i<135:
     pen.fillcolor('pink')
@@ -14,8 +12,7 @@ while i<135:
     pen.goto(0,0)
     pen.forward(200)
     pen.pendown()
-    pen.circle("100")
+    pen.circle(100)
     pen.left(2)
-    i+=1
-
-turtle.done()
+    i + 1
+turtle.done()
\ No newline at end of file