[预售](%E9%A2%84%E5%94%AE.md) [团购](%E5%9B%A2%E8%B4%AD.md) [加价购](%E5%8A%A0%E4%BB%B7%E8%B4%AD.md) [限时折扣](%E9%99%90%E6%97%B6%E6%8A%98%E6%89%A3.md) [满即送](%E6%BB%A1%E5%8D%B3%E9%80%81.md) [代金券](%E4%BB%A3%E9%87%91%E5%88%B8.md) [拼团](%E6%8B%BC%E5%9B%A2.md) [砍价](%E7%A0%8D%E4%BB%B7.md)