c# - 使用String.Split之后保留定界符

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C# split string but keep split chars / separators [duplicate]
                                
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我想使用多个分隔符来分割字符串，如下所示：

"aa*ab+ac/ad-ae=af;ag".Split(new string[] { ";", "*", "+", "/", "-" })

返回

{ "aa", "ab", "ac", "ad", "ae", "af", "ag" }

但是，如果我希望将定界符保留在最终数组中，例如

{ "aa", "*", "ab", "+", "ac", "/", "ad", "-", "ae", "=", "af", ";", "ag" }

有没有简单的方法可以做到这一点？

最佳答案

您可以使用正则表达式

var input = "aa*ab+ac/ad-ae=af;ag";
var parts = Regex.Matches(input, @"[;\*\+/=-]|[^;\*\+/=-]+")
                .Cast<Match>()
                .Select(m => m.Value)
                .ToList();