[1.价格方案](1.%E4%BB%B7%E6%A0%BC%E6%96%B9%E6%A1%88.md) [2.多菜单切换](2.%E5%A4%9A%E8%8F%9C%E5%8D%95%E5%88%87%E6%8D%A2.md) [3.限时限量](3.%E9%99%90%E6%97%B6%E9%99%90%E9%87%8F.md)