How to get the count of only special character in a string using Regex?

Question

If my input string is ~!@#$%^&*()_+{}:\"<>?

How do I get the count of each special character using Regex? For example:

Regex.Match         


        

Answer 1

If you want to follow other approach then you can use.

string str =  "@123:*&^789'!@#$*()_+=";
            int count = 0;
            foreach (char c in str)
            {
                if (!char.IsLetterOrDigit(c.ToString(),0))
                {
                    count++;
                }
            }
            MessageBox.Show(count.ToString());