HxDen

java实现的词法分析器，手工生成，输入源程序后，可分离出数字，标志符，分割符，运算符，保留字。-achieve the lexical analyzer, artisanal production, import source, can be broken down into digital, URI, Segmentation website Operators, reservations word.

说明：  用正确的形式输入两个多项式，进行两个多项式的四则运算，用可读的形式输出结果多项式(Input two polynomials in correct form, perform four operations of two polynomials, and output result polynomials in readable form.)

The concrete implementation of an NIO file lock object.

VB采用最小二乘法演示如何在VB中实现线性拟合和二次拟合。(VB using the least square method demonstrates how to implement linear and two order curve fitting in VB.)

说明：  计算复数的小工具,可用来计算各种表达式，包括复数、括号、加减乘除，并按照四则运算的顺序处理。(A small tool for calculating complex numbers, which can be used to calculate various expressions, including complex numbers, parentheses, addition, subtraction, multiplication and division, and is processed in the order of four operations.)

opcasync OPC Client 客户端开发完整源代码，经多次验证，完全可行(opcasync OPC Client client development complete source code, after repeated verification, entirely feasible.)

Use Python to interact with Amazon Cloud Computing AWS to create instance and handle requests

示例如何将内部网UDP端口映射到公共网，很少能找到的东西-examples of how internal network UDP port mapping to the public network, can find little things

ASP数据库,ASP数据库设计库，表，字段说明！-ASP database, ASP database design library, table, field note!

labview做的密码登录系统，简单好用(LabVIEW password login system, simple and easy to use)