C# 判断时间段是否相交的实现方法

public static bool IsTimeBetween(TimeSpan input, TimeSpan start, TimeSpan end, bool fromInclusice, bool toInclusive)     {       //http://stackoverflow.com/questions/592248/how-can-i-check-if-the-current-time-is-between-in-a-time-frame       // see if start comes before end       if (end < start)       {         return           ((toInclusive && (input <= end)) || (!toInclusive && (input < end)))           ||           ((fromInclusice && (input >= start)) || (!fromInclusice && (input > start)));       }       else       {         return           ((fromInclusice && (input >= start)) || (!fromInclusice && (input > start)))           &&           ((toInclusive && (input <= end)) || (!toInclusive && (input < end)));       }       } 

public IMongoQuery GetMongoQueryIntersectWith<TCollection>(       Expression<Func<TCollection, DateTime>> fromExp,        Expression<Func<TCollection, DateTime>> toExp)     {       var rangeTo = Query.And(Query<TCollection>.GTE(toExp, To), Query<TCollection>.LTE(fromExp, To));       var rangeFrom = Query.And(Query<TCollection>.GTE(toExp, From), Query<TCollection>.LTE(fromExp, From));        var rangeQuery = Query.Or(rangeTo, rangeFrom,          Query.And(Query<TCollection>.GTE(fromExp, From),Query<TCollection>.LTE(toExp, To)));       return rangeQuery;     }