C ++的CString相当于在C＃ [英] C++ CString equivalent in C#

问题描述

什么是 C＃相当于MFC的的CString ？

What is the C# equivalent for MFC's CString?

推荐答案

也许 System.String 。但是，在努力提供更多有用信息：

Probably System.String. But in an effort to provide more useful information:

• System.String 实例不可改变的。级联/子/等实际上是建立输出创建新的string对象，所以使用字符串实例作为缓冲区是一个非常糟糕的主意，如果你打算这样做。 System.String 看作一个常量CString 。


• System.Text.StringBuilder 被用来建立和操作字符串内容。它有一个的ToString（）方法，你可以打电话把其内容放到一个适当的字符串。


• 您可以使用的char [] 作为一种字符串生成器替代的，如果你知道一个生成的字符串会究竟有多长练得，但即便如此，你可以使用新的StringBuilder （长）来指定一个默认的初始容量。然后，您可以使用相关的追加方法，而无需保持周围的指标变量。 （的StringBuilder 这是否给你的。）

• System.String instances are immutable. Concatenation/substring/etc actually create new string objects, so using a string instance as a buffer for building up output is a really bad idea, in case you were going to do that. Think of System.String as a const CString.
• System.Text.StringBuilder is used to build up and manipulate string content. It has a .ToString() method you can call to turn its contents into a proper string.
• You can use char[] as a sort of string builder alternative, if you know exactly how long a generated string will turn out to be, but even so you can use new StringBuilder(length) to specify a default initial capacity. You can then use the relevant append methods without having to keep around an index variable. (StringBuilder does that for you.)

比利在对方提到回答这个问题，C＃有一个关键字字符串这本质上是一个快捷方式到 System.String 键入。两者都是完全等效的，但如果你使用大写形式最程序员会LART你。

As Billy mentioned in the other answer to this question, C# has a keyword string that is essentially a shortcut to the System.String type. Both are completely equivalent, though most coders will LART you if you use the uppercase form.

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