java使用正则表达式匹配中文字符
StringBuilder sb = new StringBuilder();
String s = "中文\n" +
"Chinese\n" +
"英文";
String pattern = "[\\u4e00-\\u9fa5]+";
Pattern r = Pattern.compile(pattern);
Matcher m = r.matcher(s);
while (m.find()) {
sb.append(m.group());
}
System.out.println(sb.toString());