save project

my_tree.py

@@ -14,7 +14,7 @@ pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
 def tree(n):
 def tree(n):
-    if n >= 50:
+    if n>= 0:
         if n<=12:
         if n<=12:
             color_list=["snow","lightcoral"]
             color_list=["snow","lightcoral"]
             color=random.choice(color_list)
             color=random.choice(color_list)
@@ -29,7 +29,8 @@ def tree(n):
         pen.right(angle)
         pen.right(angle)
         tree(n-length)
         tree(n-length)
         pen.left(2*angle)
         pen.left(2*angle)
+        tree(n-length)
         pen.right(angle)
         pen.right(angle)
         pen.up() 
         pen.up() 
-tree(100)
+tree(60)
 turtle.done()
 turtle.done()