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//自定义比较符
public class MyComparer : IEqualityComparer<Customer>
{
public bool Equals(Customer x, Customer y)
{
return (x.User == y.User);
}
public int GetHashCode(User obj)
{
return obj.ToString().GetHashCode();
}
}
//消除重复数据
IEnumerable<Customer> CustomerDistinctList = db.Customers.ToList().Distinct(new MyComparer ());