auto save

qwe.py

+from random import randint
+a = randint(2,5)
+print(a)
\ No newline at end of file

snake.py

+import pygame
+from pygame import locals 
+# 初始化pygame，为使用pygame做准备
+pygame.init()
+pygame.display.set_mode((660,480))
+
+
+# 创建一个窗口
+while True:
+    for a in pygame.event.get():
+        if a.type==locals.QUIT:
+            exit()