[2.1 商户小程序发放减免券](2.1%E5%95%86%E6%88%B7%E5%B0%8F%E7%A8%8B%E5%BA%8F%E5%8F%91%E6%94%BE%E5%87%8F%E5%85%8D%E5%88%B8.md) [2.2 商户web后台发放减免券](2.2%E5%95%86%E6%88%B7web%E5%90%8E%E5%8F%B0%E5%8F%91%E6%94%BE%E5%87%8F%E5%85%8D%E5%88%B8.md) [2.3 车主使用减免券](2.3%E8%BD%A6%E4%B8%BB%E4%BD%BF%E7%94%A8%E5%87%8F%E5%85%8D%E5%88%B8.md) [2.4 商户流水和用券详情查询](2.3%E5%95%86%E6%88%B7%E6%B5%81%E6%B0%B4%E5%92%8C%E7%94%A8%E5%88%B8%E8%AF%A6%E6%83%85%E6%9F%A5%E8%AF%A2.md) [2.5 商户储值的统计](2.5%E5%95%86%E6%88%B7%E5%82%A8%E5%80%BC%E7%9A%84%E7%BB%9F%E8%AE%A1.md)