问个简单问题
var q = db.company_job.Select(u => u.click).Sum();

这个语句如果加条件？如u.UserId == (Guid)myMember.ProviderUserKey

[解决办法]
var q = db.company_job.where(p=>p.UserId == (Guid)myMember.ProviderUserKey


).Select(u => u.click).Sum();