save project

snake.py

@@ -53,11 +53,15 @@ while True:
         y -= 30
     else:
         y += 30
+    
     if applex==x and appley==y:
-        applex=random.randint(0,660)
-        appley=random.randint(0,480)
-    position.append((x, y))
+        applex=random.randint(0,21)*30
+        appley=random.randint(0,15)*30
+    else:
         position.pop(0)
+    position.append((x, y))
+    
+    
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去