这是我的人类:
public class Person { public string Name; public string LastName; public int Age; public Person() { } public Person(string name,string lastName,int age) { Name = name; LastName = lastName; Age = age; } }
这是我的主要计划.当前输出是ListDemo.Person. ListDemo是我的解决方案名称,Person是我的类名.如何在输出中获取人员的所有详细信息?
class Program { static void Main(string[] args) { List<Person> personList = new List<Person>(); personList.Add(new Person { Name = "Ahmad",LastName = "Ashfaq",Age = 20 }); personList.Add(new Person { Name = "Ali",LastName = "Murtza",Age = 23 }); foreach (Person item in personList) { Console.WriteLine(item); } Console.ReadKey(); } }
解决方法
这很简单.
public class Person { public string Name; public string LastName; public int Age; public Person() { } public Person(string name,int age) { Name = name; LastName = lastName; Age = age; } public override string ToString() { return string.Format("{0} {1} - {2} Years Old",Name,LastName,Age); } }
哪个你可以准确地使用你在原始位置的方式:
foreach (Person item in personList) { Console.WriteLine(item); }
哪个会打印出来像:
Jane Doe - 23 Years Old John Doe - 14 Years Old Jim Doe - 120 Years Old
.ToString()继承自Object,可用于覆盖您创建的每个类.您可以使用它来返回表示对象的字符串数据.默认情况下,这只会在您发现时返回类型名称ListDemo.Person,但如果您覆盖它,则可以返回您想要的任何内容.