save project

hiahiahia.py

+import turtle
+pen=turtle.Pen()
+for i in range(99999):
+    pen.forward(i)
+    pen.right(89.5)
+turtle.down
\ No newline at end of file

my_tree.py

@@ -11,5 +11,16 @@ pen.left(90)
 pen.up()
 pen.backward(150)    # 后退
 pen.down()
-
+def tree(n):
+    if n>=50:
+        pen.forward(n)
+        pen.right(30)
+        tree(n-50)
+        pen.left(60)
+        tree(n-50)
+        pen.right(30)
+        pen.penup()
+        pen.backward(n)
+        pen.pendown()
+tree(150)
 turtle.done()