设置阵列密钥字符串不是int？ [英] Set array key as string not int?

问题描述

我想数组键设置像在下面的示例中的字符串，但 C＃。

 ＆LT; PHP
$阵列=阵列（）;
$阵列['KEY_NAME'] =值1;
？＆GT;
 

解决方案

你最近在C＃中是 词典＆LT; TKEY的，TValue＆GT; ：

  VAR字典=新字典＆LT;字符串，字符串＆GT;（）;
字典[KEY_NAME] =值1;
 

请注意，词典＆LT; TKEY的，TValue＆GT; 是没有的一样PHP的关联数组，因为它的只有一个类型的密钥访问（ TKEY的 - 这是字符串在上面的例子），而不是串/整数键组合（感谢帕维尔澄清了这一点）。

不过，我从来没有听说过一个.NET开发人员抱怨说。

---

在回应您的评论：

  //在headersSplit元素的数量将是数量'：'字符
//符合+ 1。
字符串[] headersSplit = line.Split（：）;

串hname = headersSplit [0];

//如果您收​​到一个IndexOutOfRangeException这里，那是因为你
// headersSplit阵列仅具有一个元素。这告诉我，行不
//包含一个'：'字符。
串hvalue = headersSplit [1];
 

I am trying to set the array keys as a strings like in the example below, but inC#.

<?php
$array = array();
$array['key_name'] = "value1";
?>

解决方案

The closest you get in C# is Dictionary<TKey, TValue>:

var dict = new Dictionary<string, string>();
dict["key_name"] = "value1";

Note that a Dictionary<TKey, TValue> is not the same as PHP's associative array, because it is only accessible by one type of key (TKey -- which is string in the above example), as opposed to a combination of string/integer keys (thanks to Pavel for clarifying this point).

That said, I've never heard a .NET developer complain about that.

---

In response to your comment:

// The number of elements in headersSplit will be the number of ':' characters
// in line + 1.
string[] headersSplit = line.Split(':');

string hname = headersSplit[0];

// If you are getting an IndexOutOfRangeException here, it is because your
// headersSplit array has only one element. This tells me that line does not
// contain a ':' character.
string hvalue = headersSplit[1];

这篇关于设置阵列密钥字符串不是int？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！