摘要:
import java.util.ArrayList; public class Hello { public static void main(String[] args) { String s = "我爱JAVA"; System.out.println(s2unicode(s)); } sta 阅读全文
摘要:
查询用户ID为1的所有子用户: select id, name, parent from (select * from tablename order by parent, id) tablename, (select @pv := '1') initialisation where find_in 阅读全文