时间段连续判断:http://topic.csdn.net/u/20090925/17/a036a382-cf9f-40ec-a826-9ef23a841344.html 实现内容的时间交集计算的sql语句:http://database.51cto.com/art/201009/228070.htm 相关文章: 2022-12-23 2022-12-23 2022-01-26 2022-12-23 2022-12-23 2022-12-23 2022-12-23 2022-12-23