auto save

my_tree.py

-import turtle
+import turtle 
+from random import randint
 
 
 pen = turtle.Turtle()
 pen = turtle.Turtle()
 pen.color('sienna')
 pen.color('sienna')
@@ -10,6 +11,40 @@ w.bgcolor('wheat')      # wheat小麦
 pen.left(90)
 pen.left(90)
 pen.up()
 pen.up()
 pen.backward(150)    # 后退
 pen.backward(150)    # 后退
-pen.down()
+# pen.down()
 
 
+# pen.forward(150)
+# pen.right(30)
+# pen.forward(60)
+# pen.up()
+# pen.backward(60)
+# pen.left(60)
+# pen.down()
+# pen.forward(60)
+# pen.up()
+# pen.backward(60)
+# pen.right(30)
+pen.speed(1000)
+def num (n):
+    if n>=0:
+        pen.pensize(n/10)
+        a = randint(0,30)
+        b = randint(1,15)
+        pen.down()
+        pen.forward(n)
+        pen.right(a)
+        num(n-b)
+        pen.left(2*a)
+        num(n-b)
+        pen.right(a)
+        pen.up()
+        pen.backward(n) 
+    if n< 30:
+        pen.color("red")
+        pen.pensize(n/3)
+    else:
+        pen.color('sienna')
+        pen.pensize(n/10)
+num(50)
+# pen.speed(100)
 turtle.done()
 turtle.done()