save project

snake.py

@@ -53,18 +53,14 @@ while True:
     else:
         y += 30
     position.append((x, y))
-    
-    if x==apple_x and y==apple_y:
+    position.pop(0)
+    if x==apple_x and y=apple_y:
         num1=random.randint(1,22)
         num2=random.randint(1,16)
         apple_x=30*num1-30
         apple_y=30*num2-30
-        score=score+30
     else:
         position.pop(0)
-    #贪吃蛇撞墙
-    if x<0 or x>680 or y<0 or y>450:
-        exit()
     # 将背景图画上去
     screen.blit(background, (0, 0))
     # 将贪吃蛇的头画上去