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  @Slf4j public class RegExpTest {
      
 
 
 
 
 
 
 
 
 
 
 
      public static void main(String[] args) {
 
                   String regex = "^1234$";         String content = "1234";         boolean matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "^1234|5678$";         content = "1234";         matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "^123[0-9]$";         content = "1234";         matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "^123\\d$";         content = "1234";         matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "^123\\d+$";         content = "123456789";         matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "^123\\d*$";         content = "123";         matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "^123";         content = "1235";         matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "123$";         content = "4123";         matches = content.matches(regex);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
                   regex = "^123\\d{5}";         content = "12345678";         matches = Pattern.matches(regex, content);         log.info("正则表达式: regex=[{}], content=[{}], result=[{}]", regex, content, matches);
      } }
 
 
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