C# 每 n 个字符换行 [英] C# line break every n characters

问题描述

假设我有一个带有文本的字符串:这是一个测试".我将如何将它拆分为每 n 个字符?所以如果 n 是 10，那么它会显示:

Suppose I have a string with the text: "THIS IS A TEST". How would I split it every n characters? So if n was 10, then it would display:

"THIS IS A "
"TEST"

……你懂的.原因是因为我想将一个非常大的行分成更小的行，有点像自动换行.我想我可以为此使用 string.Split()，但我不知道如何使用，而且我很困惑.

..you get the idea. The reason is because I want to split a very big line into smaller lines, sort of like word wrap. I think I can use string.Split() for this, but I have no idea how and I'm confused.

任何帮助将不胜感激.

推荐答案

让我们从 我的答案 关于代码审查.这会每 n 个字符插入一个换行符:

Let's borrow an implementation from my answer on code review. This inserts a line break every n characters:

public static string SpliceText(string text, int lineLength) {
  return Regex.Replace(text, "(.{" + lineLength + "})", "$1" + Environment.NewLine);
}

改为返回字符串数组:

To return an array of strings instead:

public static string[] SpliceText(string text, int lineLength) {
  return Regex.Matches(text, ".{1," + lineLength + "}").Cast<Match>().Select(m => m.Value).ToArray();
}

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