auto save

my_tree.py

@@ -12,6 +12,16 @@ pen.up()
 pen.backward(150)    # 后退
 pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
+def tree(n):
+    if n>=50:
+        pen.forward(n)
+        pen.right(30)
+        tree(n-10)
+        pen.left(60)
+        pen.up()
+        pen.backward(n-50)
+        pen.down()
+
 for i in range(5):
 for i in range(5):
     pen.forward(50)
     pen.forward(50)
     pen.right(30)
     pen.right(30)
@@ -22,8 +32,8 @@ for i in range(5):
     pen.left(60)
     pen.left(60)
     pen.forward(50)
     pen.forward(50)
     pen.backward(50)
     pen.backward(50)
-    # pen.right(30)
-    # pen.backward(50)
+    pen.right(30)
+    pen.backward(50)
 
 
 pen.hideturtle()
 pen.hideturtle()
 turtle.done()
 turtle.done()