hackbar是Firefox的经典插件之一.介绍如下(懒得翻译了) This toolbar will help you in testing sql injections, XSS holes and site security. It is NOT a tool for executing standard exploits and it will NOT teach you how to hack a site. Its main purpose is to help a develop
Centos7安装Chacha20加密算法 (验证成功) 有些程序会使用Chacha20加密算法,如果Centos7系统报错Exception: libsodium not found,则缺乏M2Crypto与libsodium依赖环境所致: Salsa20是一种流加密算法,由Daniel J. Bernstein提交到eSTREAM.它创建在基于add-rotate-xor(ARX)操作的伪随机函数之上--32位模加.异或(XOR)和循环移位操作.Salsa20映射一个256位密钥.一个64位
判断数据库是否已经存在 SqlConnection judgeConn = new SqlConnection("server=.;database=master;uid="+username+";pwd="+userpwd+";");judgeConn.Open();SqlCommand command = new SqlCommand("select count(*) from sys.databases where name='&
可能是已经安装了其他版本的Microsoft visual studio 参考: http://answers.microsoft.com/zh-hans/windows/forum/windows_8-update/%E5%AE%89%E8%A3%85vc2010-sp1/a02277a4-e6f5-44f9-8e21-7a6f615a3b4b?auth=1
本章深挖原型机制. [[Prototype]]比类更直接和简单! https://github.com/getify/You-Dont-Know-JS/blob/master/this%20%26%20object%20prototypes/ch6.md 这个实际的机制,都是关于对象之间的连接,一个对象被连接到其他对象上! Towards Delegation-Oriented Design 行为授权的设计模式.OLOO模式. Class Theory(略) Delegation Theory