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 String so = "haolong,    hei eip,      "
            +"ting,         " +
                    "                     oo|,"
            +"                      ";
        System.out.println(so.length());
       // so.replaceAll("(\n|\r\n)\\s*", ""); ²âÊÔÊDz»¿ÉÒÔ
        //[\s\p{Zs}]Õâ¸ö¿ÉÒÔ£¬ÒªÍ¬Ê±Æ¥Åä \s ÒÔ¼°¸÷ÖÖÆäËûµÄ¿Õ°××Ö·û£¨°üÀ¨È«½Ç¿Õ¸ñµÈ£©£¬¿ÉÒÔʹÓÃ
        Pattern pattern = Pattern.compile("[\\s\\p{Zs}]");
        Matcher re = pattern.matcher(so);
        so=re.replaceAll("");
//        so.replace("(\\r\\n)+|\\n+|\\s+","");²âÊÔÊDz»¿ÉÒÔ
       // so.replaceAll("(\n|\r\n)\\s*", "");²âÊÔÊDz»¿ÉÒÔ
//        so.replaceAll("(\n|\r\n)\\s+", "$1");²âÊÔÊDz»¿ÉÒÔ
        System.out.println(so.length());
        System.out.println(so);
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\s ¿Õ°××Ö·û£º[ \t\n\x0B\f\r] //Õâ¸öÊÇÖØµã£¡
\t ÖÆ±í·û ('\u0009')
\n ÐÂÐУ¨»»ÐУ©·û ('\u000A')
\r »Ø³µ·û ('\u000D')
\f »»Ò³·û ('\u000C')
\a ±¨¾¯ (bell) ·û ('\u0007')
\e תÒå·û ('\u001B')
\cx ¶ÔÓ¦ÓÚ x µÄ¿ØÖÆ·û
\s ²¢²»ÄÜÆ¥ÅäÖÐÎÄÈ«½Ç¿Õ¸ñ¡£
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