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/**
 * ±à³Ì£º±àдһ¸ö½ØÈ¡×Ö·û´®µÄº¯Êý£¬ÊäÈëΪһ¸ö×Ö·û´®ºÍ×Ö½ÚÊý£¬Êä³öΪ°´×Ö½Ú½ØÈ¡µÄ×Ö·û´®¡£ µ«ÊÇÒª±£Ö¤ºº×Ö²»±»½Ø°ë¸ö£¬Èç“ÎÒABC”4£¬Ó¦¸Ã½ØÎª“ÎÒAB”£¬ÊäÈë“ÎÒABCººDEF”£¬6£¬Ó¦¸ÃÊä³öΪ“ÎÒABC”¶ø²»ÊÇ“ÎÒABC+ººµÄ°ë¸ö”¡£
 * °´ÉÏÊö¹æÔò£¬ÊäÈë“ÎÒABCººDEF 1”£¬Ó¦·µ»Ø¿Õ×Ö·û´®£¬¶ø²»ÊÇ“ÎÒ”¡£
 */
public class CutMultibyte {
 public static String cutMultibyte(String splitStr, int extract) {
  byte[] bytes = splitStr.getBytes();
  //½ØÈ¡×Ö½ÚÊý²»Ð¡ÓÚԭʼ×Ö½ÚÊýʱֱ½Ó·µ»ØÔ­×Ö·û´®¡£×¢Òâ×Ö½ÚÊýÒ»¶¨ÒªÓà bytes.length£¬ÓÃ×Ö·û´®µÄ length() ·½·¨·µ»ØµÄÊÇ×Ö·ûÊý£¡
  if (extract >= bytes.length) {
   return splitStr;
  }
  else {
   int result = 0;
   int cutLength = 0;
   //ͳ¼Æ³öÔÚÒª½ØÈ¡µÄ×Ö½ÚÖÐÓм¸¸ö×Ö½ÚÊǸºÊý
   for (int i = 0; i < extract; i++) {
    if (bytes[i] < 0) {
     cutLength++;
    }
   }
   //Èô¸ºÊý×Ö½ÚÊýÊÇżÊý£¬¼´Òª½ØÈ¡µÄ×Ö½ÚÊýÖÐÓöµ½¸ÕºÃÊÇÈô¸ÉÍêÕûµÄºº×Ö£¬Ôò½ØÈ¡×Ö½ÚÊý²»±ä£»·ñÔò¸ºÊý×Ö½ÚÊýÊÇÆæÊý£¬±íʾÓöµ½µÄ²»ÊÇÍêÕûºº×Ö£¬½ØÈ¡×Ö½ÚÊý¼õ 1¡£   
   if (cutLength % 2 == 0) {
    result = extract;   
   }    
   else {
    result = extract - 1;
   }
   String substrx = new String(bytes, 0, result);
   return substrx;
  }  
 }
 
  
 public static void main(String args[]) {
  String str = args[0];
  int num = Integer.valueOf(ar


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