从字符串列表抽取共同的前缀 [英] extracting the common prefixes from a list of strings

问题描述

我有一个字符串，如清单：

  {ABC001，abc002，abc003，cdef001，cdef002，cdef004， ghi002，ghi001} 
  

我要得到所有常见的唯一前缀;例如，对于上面的列表：

  {ABC，CDEF，GHI} 
  

我该怎么办呢？

解决方案

  VAR名单=新名单，LT;弦乐> {
ABC001，abc002，abc003，cdef001，
cdef002，cdef004，ghi002，ghi001
}; 
变种前缀= list.Select（X => Regex.Match（X，@^ [^ \d] +）值。）.Distinct（）; 
  

I have a list of strings, such as:

{ abc001, abc002, abc003, cdef001, cdef002, cdef004, ghi002, ghi001 }

I want to get all the common unique prefixes; for example, for the above list:

{ abc, cdef, ghi }

How do I do that?

解决方案

var list = new List<String> {
    "abc001", "abc002", "abc003", "cdef001",
    "cdef002", "cdef004", "ghi002", "ghi001"
};
var prefixes = list.Select(x = >Regex.Match(x, @"^[^\d]+").Value).Distinct();

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