save project

my_tree.py

 import turtle
 import turtle
+import random
+
 
 
 pen = turtle.Turtle()
 pen = turtle.Turtle()
 pen.color('sienna')
 pen.color('sienna')
@@ -6,10 +8,18 @@ pen.color('sienna')
 w = turtle.Screen()
 w = turtle.Screen()
 w.bgcolor('wheat')
 w.bgcolor('wheat')
 
 
-      # wheat小麦
 
 
 def tree(n):
 def tree(n):
-      if n >= 50:
+      if n >= 0:
+            if n<=12：
+                  x = random.randint(1,2)
+                  if x==1:
+                        pen.color('snow')
+                  else:
+                        pen.color('lightcoral')
+                  pen.pensize(n\3)
+            a = random.randint(0,30)
+            b = random.randint(0,15)
             pen.forward(n)
             pen.forward(n)
             pen.right(30)
             pen.right(30)
             tree(n-10)
             tree(n-10)
@@ -17,6 +27,13 @@ def tree(n):
             pen.left(60)
             pen.left(60)
             tree(n-10)
             tree(n-10)
             pen.left(30)
             pen.left(30)
+            pen.up
+            pen.backward(0)
+            pen.down
+
+
+
+