save project

snake.py

@@ -53,10 +53,13 @@ while True:
     else:
         y += 30
     if x==food_x and y==food_y:
-        food_y=random.randint(0,480)
-        food_x=random.randint(0,650)
-    position.append((x, y))
+        a=random.randint(10,11)
+        b=random.randint(10,15)
+        food_x=a*30-30
+        food_y=b*30-30
+    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
@@ -69,5 +72,5 @@ while True:
     screen.blit(food, (food_x, food_y))
     # 刷新画面
     pygame.display.update()
-    FPSCLOCK.tick(40)
+    FPSCLOCK.tick(10)
    
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