//定义Person类型数组

Person[] arr = new Person[] {

new Person("小李",30,"软件开发"),

new Person("小王",26,"软件开发"),

new Person("小张",27,"软件测试")

};

//投影操作，插入了索引值

var result = arr.Select((p, index) => new { index, p.P_name, p.P_dept ,p.P_age});

foreach (var item in result)

{

Response.Write(item + "<br/>");

}

 

 

public class Person

{

//定义字段

private string Name;

private int Age;

private string Dept;

//构造函数

public Person(string Name, int Age, string Dept)

{

this.Name = Name;

this.Age = Age;

this.Dept = Dept;

}

//定义属性

public string P_name

{

get { return Name; }

}

public int P_age

{

get { return Age; }

}

public string P_dept

{

get { return Dept; }

}

}