返回I Enenable<T>与IQueryable<T>返回有什么区别?IQueryable<T>v.V.IEnumerable<T>?IQueryable<Customer> custs = from c in db.Customerswhere c.City == "<City>"select c;IEnumerable<Customer>
custs = from c in db.Customerswhere c.City == "<City>"select c;两者都会被推迟执行,以及何时应该优先于另一个?
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