Technology is a powerful force in our society. Data, software,and communication can be used for bad: to entrench unfair power structures, to undermine human rights, and to protect vested interests. But they can also be used for good: to make underrepresented people's voice heard, to create opportunities for everyone, and to avert disasters. We are dedicated to working toward the good.
摘要：
一，问题描述 数据格式： id, timeStamp,count 条件1：查询 某个时间段 内的数据： timeStamp BETWEEN startTime AND endTime。比如 timeStamp BETWEEN 1499875200 AND 1499875600 条件2：记录 的 id 阅读全文
