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{
Regex regex = new Regex("[\u4e00-\u9fa5]+", RegexOptions.Compiled); char[] stringChar = stringToSub.ToCharArray(); StringBuilder sb = new StringBuilder(); int nLength = 0; bool isCut=false; for(int i = 0; i < stringChar.Length; i++) 
{ if (regex.IsMatch((stringChar[i]).ToString())) { sb.Append(stringChar[i]); nLength += 2;
} else { sb.Append(stringChar[i]); nLength = nLength + 1; } if (nLength > length) { isCut=true; break; } } if(isCut) return sb.ToString()+".."; else return sb.ToString();
}
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原文地址：http://www.cnblogs.com/baozhu/p/4292922.html
