save project

my_tree.py

-import turtle
 
 
-def tree(n)
-if n >50:
-    pen.forward(n)
-    pen.right(30)
-    tree(n-50)
-    pen.up()
     pen.backward(n)
     pen.backward(n)
     pen.down()
     pen.down()
-
+    
 pen = turtle.Turtle()
 pen = turtle.Turtle()
 pen.color('sienna')
 pen.color('sienna')
 # 画布大小
 # 画布大小
 w = turtle.Screen()
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
 w.bgcolor('wheat')      # wheat小麦
+import turtle
 
 
+def tree(n)
+if n >50:
+    pen.forward(n)
+    pen.right(30)
+    tree(n-50)
+    pen.left(30)
+    pen.left(30)
+    tree(n-50)
+    pen.right(30)
+    pen.up(
 # 移动到起点
 # 移动到起点
 pen.left(90)
 pen.left(90)
 pen.up()
 pen.up()