class person :IComparable<person>

{

public person(string name, string sex)

{

this.name = name;

this.sex = sex;

}

public string name{set;get;}

public string sex {set;get; }

public int CompareTo(person other)

{

if (other == null) throw new ArgumentNullException("other");

int result = this.name.CompareTo(other.name);

if (result == 0)

{

result = this.sex.CompareTo(other.sex);

}

return result;

}

public override string ToString()

{

return name + ":" + sex;

}

}

 

调用

person[] p = { new person("小明", "女"), new person("明红", "男"), new person("小明", "男") };

Array.Sort(p);

foreach (var item in p)

{

Console.WriteLine(item.ToString());

}

 或者

IEnumerator enumerator = p.GetEnumerator();

while (enumerator.MoveNext())

{

person p9 = (person)enumerator.Current;

Console.WriteLine(p9.ToString());

}

 

System.String和System.Int32实现IComparable接口，所以Array只能对他们两进行排序

而如果数组中的元素是类的话，就要重写CompareTo(person other)方法