C # extract Chinese Characters

Today, my friend asked me how to extract Chinese characters from a string. Because my friend has been working for several years, I suspect that there are some advanced statements here.)

Here, we also had a big joke about this big circle.

A few days ago, on the C # subject matter, I saw that 16 bits was not enough to indicate all Unicode characters. I naturally thought of Chinese (it was a terrible short circuit ...)

So I thought it was complicated. Then, my friend gave me a dish and said a Chinese sentence. Isn't it two bytes? I suddenly woke up otz.

 

The following is the Code implemented using regular expressions. In short, it is very simple, so I doubt if I want to be simple (for example, the problem between half-width and full-width? ):

Code:

1. Public String test (string S)
2. {
3. String result = NULL;
4. For (INT I = 0; I <S. length; I ++)
5. {
6. RegEx RX = new RegEx ("^ [/u4e00-/u9fa5] $"); // Unicode range of Chinese Characters
7. If (RX. ismatch (s [I]. tostring ()))
8. {
9. Result + = s [I]. tostring ();
10. }
11. }
12. Return result;
13. }