[a. 分页查询所有车辆-query](a.%E5%88%86%E9%A1%B5%E6%9F%A5%E8%AF%A2%E6%89%80%E6%9C%89%E8%BD%A6%E8%BE%86.md) [b. 添加车辆-add](b.%E6%B7%BB%E5%8A%A0%E8%BD%A6%E8%BE%86.md) [c.修改车辆-edit](c.%E4%BF%AE%E6%94%B9%E8%BD%A6%E8%BE%86-edit.md) [d. 删除车辆-delete](d.%E5%88%A0%E9%99%A4%E8%BD%A6%E8%BE%86-delete.md) [e.车牌变更-change](e.%E8%BD%A6%E7%89%8C%E5%8F%98%E6%9B%B4-change.md) [f. 充值延期-charge](f.%E5%85%85%E5%80%BC%E5%BB%B6%E6%9C%9F-charge.md) [g. 冻结-freeze](g.%E5%86%BB%E7%BB%93-freeze.md) [h. 解冻-unfreeze](h.%E8%A7%A3%E5%86%BB-unfreeze.md) [I. 清空所有车辆-clear](I.%E6%B8%85%E7%A9%BA%E6%89%80%E6%9C%89%E8%BD%A6%E8%BE%86.md) [j.退款](j.%E9%80%80%E6%AC%BE.md) [附: 车辆结构体说明](%E9%99%84%E8%BD%A6%E8%BE%86%E7%BB%93%E6%9E%84%E4%BD%93%E8%AF%B4%E6%98%8E.md)