C # To determine whether a character is a kanji

There are three ways to determine if a character is a kanji:

[1] The ASCII code is judged, [2] is judged by the UNICODE encoding range of the Chinese character, [3] is judged by the regular expression.

1. Use ASCII code to judge

In the ASCII code table, the English range is 0-127, while the kanji is greater than 127, the specific code is as follows:

stringText ="Kanji, ABC";  for(inti =0; I < text. Length; i++) {     if((int) Text[i] >127) Console.WriteLine ("It's kanji ."); ElseConsole.WriteLine ("not kanji ."); } 

2, using the UNICODE encoding range of Chinese characters to judge

The UNICODE encoding range of Chinese characters is 4e00-9fbb, the specific code is as follows:

stringText ="Kanji, ABC"; Char[] C =text. ToCharArray ();  for(inti =0; I < c.length;i++){    if(C[i] >=0x4e00&& C[i] <=0X9FBB) Console.WriteLine ("It's kanji ."); ElseConsole.WriteLine ("not kanji .");
}

3. Judging with regular expression

The regular expression is also used to determine the UNICODE encoding range of Chinese characters, the specific code is as follows:

 string  text =  "  Kanji, ABC   "  for  (int  i = 0 ; i < text. Length; I++ if  (Regex.IsMatch (text[i).         ToString (), @ " [\u4e00-\u9fbb]+{1}quot;)) Console.WriteLine (  is a Chinese character "   else   Console.WriteLine (  "  not kanji  "  

C # To determine whether a character is a kanji