save project

snake.py

@@ -58,10 +58,12 @@ while True:
     position.append((x, y))
     position.append((x, y))
 
 
     if x==ax and y==ay:
     if x==ax and y==ay:
-        ax = random.randint(0,660) 
-        ay = random.randint(0,480)
-
-    position.pop(0)
+        n1 = random.randint(1,22)
+        n2 = random.randint(1,16)
+        ax = n1 * 30 - 30 
+        ay = n2 * 30 - 30
+    else:
+        position.pop(0)
     # 将背景图画上去
     # 将背景图画上去
     screen.blit(background, (0, 0))
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去
     # 将贪吃蛇的头画上去
@@ -74,4 +76,4 @@ while True:
     screen.blit(food, (ax, ay))
     screen.blit(food, (ax, ay))
     # 刷新画面
     # 刷新画面
     pygame.display.update()
     pygame.display.update()
-    FPSCLOCK.tick(3)
+    FPSCLOCK.tick(5)
\ No newline at end of file