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snake.py

-import pygame
+import ?
 
 
-# 初始化pygame，为使用pygame做准备
-pygame.init()
+pen = turtle.?()
+pen.color('sienna')
+w = turtle.?()      # 画布
+w.bgcolor('wheat')      # wheat小麦
 
 
-# 创建一个窗口
-??
+pen.left(90)# 移动到起点
+pen.up()
\ No newline at end of file
+pen.backward(150)
+pen.down()
+
+def tree(?):# 画树枝
+    if n ?:
+        pen.forward(?)
+        pen.right(30)
+        tree(?)
+        pen.left(?)
+        tree(?)
+        pen.right(30)
+        pen.up()
+        pen.backward(?)
+        pen.down()
+        
+? # 调用函数
+
+? # 固定画布
+
+
+
+
+
+import turtle
+
+pen = turtle.Turtle()
+pen.color('sienna')
+pen.speed(100)
+w = turtle.Screen()# 画布大小
+w.bgcolor('wheat')      # wheat小麦
+
+pen.left(90)# 移动到起点
+pen.up()
+pen.backward(150)    # 后退
+pen.down()
+
+def tree(n):  # 画树枝
+    if n>=30:
+        pen.forward(n)
+        pen.right(30)
+        tree(n-10)
+        pen.left(60)
+        tree(n-10)
+        pen.right(30)
+        pen.up()
+        pen.backward(n)
+        pen.down()
+tree(100)
+turtle.done()