save project

day.py

@@ -14,14 +14,15 @@ pen.down()
 
 # 分形树
 def tree(n):
-    pen.forward(100)
+    if n >=0
+    pen.forward(600)
     pen.right(30)
-    tree(n-50)
+    tree(n-10)
     pen.left(60)
-    tree(n-50)
+    tree(n-10)
     pen.right(30)
     pen.up()
     pen.backward(n)
     pen.down()
-tree(100)
+tree(60)
 turtle.done()