save project

my_tree.py

 import turtle
 import turtle
-import random
 
 
 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') 
+w.bgcolor('wheat')      # wheat小麦
 
 
 # 移动到起点
 # 移动到起点
 pen.left(90)
 pen.left(90)
@@ -13,18 +12,17 @@ pen.up()
 pen.backward(150)    # 后退
 pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
-
+turtle.done()
 def tree(n):
 def tree(n):
-    if n >= 10:
+    if n >= 50:
         pen.forward(n)
         pen.forward(n)
         pen.right(30)
         pen.right(30)
-        tree(n-10)
+        tree(n-50)
         pen.left(60)
         pen.left(60)
-        tree(n-10)
+        tree(n-50)
         pen.right(30)
         pen.right(30)
         pen.up()
         pen.up()
         pen.backward(n)
         pen.backward(n)
         pen.down()
         pen.down()
-
-tree(60)
-turtle.done()
+tree(100)
+turtle.done.
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