又是正则

0x00

　　level: 0x04

0x01

　　code:

1 // (lrrq或rq或date)或(yqsl或sl)与(yqdm或ypmc)与 (ysgk或ysdm)与sum与group
2
3 String regex = "((?=.*(lrrq|rq|date))|(?=.*(yqsl|sl)))(?=.*(yqdm|ypmc))(?=.*(ysgk|ysdm))(?=.*sum)(?=.*group).*";
4 String str = "select sl , yqdm , ysgk  sum(ssd) table1 group by ddffd";
5
6 Pattern p = Pattern.compile(regex);
7 Matcher m = p.matcher(str);
8
9 System.out.println(m.matches());

0x02

　　?= 必须; ?! 排除; | 或者