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my_tree.py

@@ -2,7 +2,7 @@ import turtle
 
 
 pen = turtle.Turtle()
 pen = turtle.Turtle()
 pen.color('sienna')
 pen.color('sienna')
-# 画布大小
+pen.speed(0)
 w = turtle.Screen()
 w = turtle.Screen()
 w.bgcolor('wheat')      # wheat小麦
 w.bgcolor('wheat')      # wheat小麦
 
 
@@ -12,4 +12,7 @@ pen.up()
 pen.backward(150)    # 后退
 pen.backward(150)    # 后退
 pen.down()
 pen.down()
 
 
+def tree(n):
+    if n <= 12:
+        
 turtle.done()
 turtle.done()