CSharpTCP

DNSQuery,能查询域名是否注册，给定一个ip可查询它所指向的域名-DNSQuery can inquiries whether the domain name registration, to be scheduled for an ip it directly to the domain name

tcp半开连接扫描，扫描速度快

接收UDP16进制数据在界面上绘制出位置(Receives the UDP 16 hex data to draw the position on the interface)

史上最完整的下载者源代码,需要的朋友下载后可以研究-The history of those who download the most complete source code, the need for friends to download can be studied after

学习网络安全的一本书籍。《黑客入侵（超级详细版）》(A learning network security books. " Hacking (super-detailed version)" )

修改 Network 网的密码-change the password Network Network

TCP和UDP socket编程，向固定服务器发送学号姓名信息，用udp从服务器获得一个随机字符串(TCP and UDP socket programming, Student ID Name information sent to the fixed server udp from server to obtain a random string)

封装帧和解析帧，并有CRC校验，完全是自己手写(Feng binding and parsing frame, and a CRC checksum)

字符串处理函数. -string handling functions. The string handling functions.

找出一个向量或者数组的所有子集，数组中所有向量的全部组合排列组成的子集(Find a subset of the array)