是否可以返回多个值，以及如何检索呢? [英] Is it possible to return more than 1 values and how to retrieve it?

问题描述

这是我的代码，并尝试对其进行实验.

This is my code and tried to experiment on it.

public string _getContact(int contactID)
{

//i had also do something in my contactID

string val1="";
string val2="";

//something to do in this part

return val1;
return val2;

}

我怎么可能找回它呢?

And how do i possibly retrieve it?

//dont know what to do this part
string pasval1 = _getContact();
string pasval2 = _getContact();

推荐答案

您可以使用以下参数: http://msdn.microsoft.com/en-us/library/t3c3bfhx( v = vs.71).aspx [ ^ ]

或者更好:返回一个对象

You can either use out parameters : http://msdn.microsoft.com/en-us/library/t3c3bfhx(v=vs.71).aspx[^]

Or better: Return an object

public class Contact{
   public string Firstname {get;set;}
   public string Lastname {get;set;}
}


....

public Contact _getContact(int contactID)
{
   Contact c = new Contact();
   c.Firstname = "Bill";
   c.Lastname = "Gates";
   return c;
}

如显示的那样，您不能使用多个return语句.当执行return语句时，控件将返回上一个线程.请检查下面的链接以获取更多信息.

http://csharp.net-tutorials.com/basics/functions/ [

Hi,

You can''t use multiple return statements as you have shown. When the return statement gets executed the control goes back to the previous thread. Please check below link for more clarity.

http://csharp.net-tutorials.com/basics/functions/[^]

In this particular case you can use an array or a comma separated string to combine multiple values in return.

Hope this helps
Sebastian

你好，

在这种情况下，您可以传递List< string>
并返回列表.这两个值都会使您进入列表的索引

hello,

In this case you can pass the List<string>
and return the list. both value will you get on index of list

List<String> list = new List<String>();

list.add("aa");
list.add("bb");

return list;

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