c＃按字母分割字符串值

Question

String value

String value = "11100110100";

I want to split it like shown below,

111,00,11,0,1,00

I tried that by splitting based on the numbers, as shown below:

List<string> result1= value.Split('0').ToList<string>();

List<string> result2= value.Split('1').ToList<string>();

It did not work so, how can i get the desired output (shown below) by splitting 1 and 0?

111

00

11

0

1

00

Thanks.

Answer 1

您可以在每个更改之间放置一个字符，从0到1，从1到0，然后拆分：

string[] result = value.Replace("10", "1,0").Replace("01", "0,1").Split(',');

Answer 2

Here is my extension method, without replacing - only parsing.

public static IEnumerable<string> Group(this string s)
{
    if (s == null) throw new ArgumentNullException("s");

    var index = 0;
    while (index < s.Length)
    {    
        var currentGroupChar = s[index];
        int groupSize = 1;

        while (index + 1 < s.Length && currentGroupChar == s[index + 1])
        {
            groupSize += 1;
            index += 1;
        }

        index += 1;

        yield return new string(currentGroupChar, groupSize);
    }
}

Note: it works for every char grouping (not only 0 and 1)