C# HashSet类（复杂）对象的去重

public class Student
{
public string Id { get; set; }
public string Name { get; set; }

public override bool Equals(object obj)
{
Student e = obj as Student;
return this.Id == e.Id && this.Name == e.Name;
}

public override int GetHashCode()
{
return this.Id.GetHashCode() * 100 + this.Name.GetHashCode();
}
}

public static void Test()
{
var hashSetData = new HashSet<Student>();
hashSetData.Add(new Student { Id = "001", Name = "张三" });
hashSetData.Add(new Student { Id = "002", Name = "李四" });
hashSetData.Add(new Student { Id = "001", Name = "张三" });
hashSetData.Add(new Student { Id = "003", Name = "张三" });

foreach (var item in hashSetData)
{
Console.WriteLine("Id:{0},Name:{1}", item.Id, item.Name);
}
}