auto save

123

+import turtle
+pen = turtle.Turtle()
+pen.up()
+pen.left(90)
+def tree(n):
+    if n>=50:
+        pen.forwand(n)
+        pen.right(30)
+        tree(n-50)
+        pen.left(60)
+        tree(n-50)
+        pen.right(30)
+        pen.up()
+        pen.backward(n)
+        pen.down()
+
+pen = turtle.Turtle()
+pen.color('sienna')
+pen.speed(1)
+
+w = turtle.Screen()
+w.bgcolor("wheat")
+turtle.done()
\ No newline at end of file

my_tree.py

-'''
 import turtle
 import turtle
 
 
-pen = turtle.Turtle()
-pen.color('sienna')
-# 画布大小
-w = turtle.Screen()
-w.bgcolor('wheat')      # wheat小麦
-
-# 移动到起点
-pen.left(90)
-pen.up()
-pen.backward(150)    # 后退
-pen.down()
-pen.forward(100)
-pen.left(30)
-pen.forward(50)
-pen.up()
-pen.backward(50)    # 后退
-pen.down()
-pen.right(60)
-pen.forward(50)
-pen.up()
-pen.backward(50)
-pen.left(30)
-pen.backward(100)
-turtle.done()
-'''
-import turtle
-pen = turtle.Turtle()
-pen.up()
-pen.left(90)
 def tree(n):
 def tree(n):
     if n>=50:
     if n>=50:
         pen.forwand(n)
         pen.forwand(n)
         pen.right(30)
         pen.right(30)
-        tree(n-50)
+        tree(n-10)
+        pen.left(60)
+        tree(n-10)
+        pen.right(30)
         pen.up()
         pen.up()
         pen.backward(n)
         pen.backward(n)
         pen.down()
         pen.down()
@@ -46,3 +19,5 @@ pen.speed(1)
 w = turtle.Screen()
 w = turtle.Screen()
 w.bgcolor("wheat")
 w.bgcolor("wheat")
 turtle.done()
 turtle.done()
+
+tree(100)
\ No newline at end of file