1.关于IP收费的问题
Tri Mode Ethernet MAC是收费IP,打开IP后,当左下角显示Bought IP license available则IP可用。
2.功能说明
应用搭建的场景是,上位机发送数据,首先发起arp请求,随后下位机给出arp应答响应&#…
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categories:
ctf ret2shellcode
[rootningan ret2shellcode]# ./ret2shellcode
No system for you this time !!!
123
bye bye ~[rootningan ret2shellcode]#checksec检查
[rootningan ret2shellcode]# checksec ret2shellcode
[!] Could not populate PLT: future feature …
基础语法
别名
-- 别名 as 可省略,但中间需要空格
select name as 员工姓名, position as 职位名称 from employees;常量和运算
select 200, 篮球 as hobby;
select order_id, unit_price, quantity, unit_price * quantity as total_amount from orders;运算符 …