我的查询是这样的:
var subQuery = contacts_requests.Where(i => i.requests_usr_id >= 1).Select
(i => i.Usr_contacts_requests_from_usr_id ).ToArray();
var query = biographic_details.Join(profiles_companies, i => i.usr_id, j => j.company_usr_id,
(i,j)=>new{
Usr_bio_usr_id }).where(p=>subQuery.Contains(i.company_usr_id)).ToArray();
我想要 notcontains 操作代替 contains,我该如何实现?