在C#中串联字符串时如何插入分隔符? [英] How do I insert a separator when concatenating a string in C#?

问题描述

我有一个字符串列表，并且通过使用此处在DotNetPerls上看到的方法，将其串连起来以整理列表，

I have a list of strings and I am concatenating it to flatten out the list by using the method seen here on DotNetPerls, http://www.dotnetperls.com/string-concat

我的问题是...在他们的清单示例中，其输出是"catdogperls"(请参见网页底部，就在摘要"之前)如何在"catdogperls"之间插入#号作为分隔符，从而它变成了"cat#dog#perls"?

My question is...in their List example where their output is "catdogperls" (see toward the bottom of the webpage, just before the Summary) how do I insert a # sign as a separator between "catdogperls" such that it becomes "cat#dog#perls"?

推荐答案

在这种情况下，您不想使用 string.Concat()，您想

In this case you don't want to use string.Concat(), you want to use string.Join(). This accepts a separator and an array of strings to join by that separator. For example:

var joined = string.Join("#", theArray);

这会将字符串值放入 joined :

"cat#dog#perls"

(当然，假设 theArray 包含这些值)

(assuming, of course, that theArray contains those values)

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