清空商品
'''
gowu_quan()
js = input("结算按y，清空购物车按q:")
if js == "y":
print("您一共购买了%d种商品，总价为：%d元" % (len(list_sp), sum(list_sp)))
elif js=="q":
list_sp.clear()
dict_sp.clear()
print("购物车已清空")
js_clear()#调用函数
清空商品
'''
gowu_quan()
js = input("结算按y，清空购物车按q:")
if js == "y":
print("您一共购买了%d种商品，总价为：%d元" % (len(list_sp), sum(list_sp)))
elif js=="q":
list_sp.clear()
dict_sp.clear()
print("购物车已清空")
js_clear()#调用函数
