Matcher.find();Matcher.matches();Matcher.rs

String first = scan.next();
String pattern = "^(\\d{3})#([\u4e00-\u9fa5]{0,})#(\\d{1,3})$";
Pattern r = Pattern.compile(pattern);
Matcher m = r.matcher(first);
System.out.println(m.matches());
//m.reset();
System.out.println(m.find());

结果：true；false
String first = scan.next();
String pattern = "^(\\d{3})#([\u4e00-\u9fa5]{0,})#(\\d{1,3})$";
Pattern r = Pattern.compile(pattern);
Matcher m = r.matcher(first);
System.out.println(m.matches());
m.reset();
System.out.println(m.find());
结果：true;true

reset()//重置匹配器