/// <summary> /// 用正则截取字符串中的中文 /// </summary> /// <param name="strSource"></param> /// <returns></returns> public static <a class="tags" href="/tags/STRING.html" title=string>string</a> GetChinese(<a class="tags" href="/tags/STRING.html" title=string>string</a> strSource) { Regex <a class="tags" href="/tags/REGEX.html" title=regex>regex</a> = new Regex("[/u4e00-/u9fa5]+", RegexOptions.Compiled); int nLength = strSource.Length; <a class="tags" href="/tags/STRING.html" title=string>string</a> chineseString = <a class="tags" href="/tags/STRING.html" title=string>string</a>.Empty; for (int i = 0; i < strSource.Length; i++) { if (<a class="tags" href="/tags/REGEX.html" title=regex>regex</a>.IsMatch(strSource.Sub<a class="tags" href="/tags/STRING.html" title=string>string</a>(i, 1))) { chineseString = chineseString + strSource.Sub<a class="tags" href="/tags/STRING.html" title=string>string</a>(i, 1); } } return chineseString; } 

 

测试

 

<a class="tags" href="/tags/STRING.html" title=string>string</a> testString = "12我测"; <a class="tags" href="/tags/STRING.html" title=string>string</a> chineseString = GetChinese(testString); 

 

结果:我测