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用户从键盘上输入三角形三条边的边长，计算并输出三角形的面积。(calculate the area of a triangle)

该系统应具有以下功能： （1） I：初始化（Initialization）。从终端读入字符集大小n，以及n个字符和n个权值，建立哈夫曼树，并将它存于文件hfmTree中。 （2） E：编码（Encoding）。利用已建好的哈夫曼树（如不在内存，则从文件hfmTree中读入），对文件ToBeTran中的正文进行编码，然后将结果存入文件CodeFile中。 （3） D：译码（Decoding）。利用已建好的哈夫曼树将文件CodeFile中的代码进行译码，结果存入文件TextFile中。 （4） P：打印代码文件（Print）。将文件CodeFile以紧凑格式显示在终端上，每行50个代码。同时将此字符形式的编码文件写入文件CodePrin中。 （5） T：打印哈夫曼树（Tree printing）。将已在 中的哈夫曼树以直观的方式（树或凹入表形式）显示在终端上，同时将此字符形式的哈夫曼树写入文件TreePrint中。 (The system should have the following features: (1) I: initialization (Initialization). Read from the terminal character set size n, and n and n characters right value, establishes a Huffman tree, and save it in the file hfmTree in. (2) E: encoding (Encoding). Has been built using the Huffman tree (if not in memory, reads from the file hfmTree), the text of the document ToBeTran encoded, and then putting the result in the CodeFile file. (3) D: decoding (Decoding). Huffman tree has been built using the file CodeFile the code will be decoded, the result is stored in the file TextFile. (4) P: Printing code files (Print). CodeFile in a compact format the document displayed on the terminal, one per line 50 code. While this character in the form of written documents CodePrin encoded file in. (5) T: Print Huffman tree (Tree printing). Would have been in the Huffman tree in an intuitive way (tree or recessed table form) displayed on the terminal, but this form of characters written to the file )

VB制作二维码图像 VB制作二维码图像(Produce two-dimensional code)

VisualBasic6全面控件操作INI文件的实例，适合初学者学习(Examples VisualBasic6 full control INI file, suitable for beginners to learn)

LTE prach的信令分析代码,由协议解析出数据处理需要的信息(The signaling LTE PRACH analysis code, the protocol analysis data processing need information )

这是一个简单的socket编程例子，非常适合刚接触socket编程者。程序简单、可用、易于理解。是个很好的socket范例。(A simple socket programming examples. Suitable for beginners. Program is simple, available, easy to understand. Is a good example of socket programming.)

希捷硬盘固化程序工厂详细分类，属于硬盘本身操作系统，包含rom文件以及工厂固化数据(Seagate hard disk curing process factory detailed classification, belongs to the hard disk operating system itself, curing and factory data contains a ROM file )

VB写的列表框_自由选择源码，有助于新手学习。(Written in VB source list box _ freedom of choice to help novices learn.)

便捷的dos进入工具，非常方便开发人员使用，提高工作效率(Dos and convenient access to tools to developers is very convenient to use, improve efficiency)

系统实时仿真的经典书籍，有XPC和dspace的仿真说明，入门的首选，真的，后悔没早看(xpc AND dspace related simulation , it is very useful for real time simulation and other work)