save project

my_tree.py

@@ -13,7 +13,7 @@ pen.backward(150)    # 后退
 pen.down()
 pen.down()
 def tree(n):
 def tree(n):
     if n>=0:
     if n>=0:
-        pen.pensize(n/10)snow,lightcoral
+        pen.pensize(n/10)snow,lightcoral,sienna
         pen.forward(n)
         pen.forward(n)
         angle=random.randint(10,30)
         angle=random.randint(10,30)
         long=random.randint(1,20)
         long=random.randint(1,20)