通过mapinfo的图层属性数据字段，用MapX生成专题图的VB源代码，密码为peng...

上传一些VHDL的例题源程序，希望对大家有所帮助-upload some examples of VHDL source code, we hope to help

包含各种VISUAL C++中的查找方法和系统 功能较齐全 -VISUAL C++ includes a variety of search methods and a more complete system functionality

用C、C++写的学生学藉管理系统，自己写的有课程设计！-With C, C++ written by students to learn management systems, have written their own curriculum design!

text chatting program

vb图书馆管理系统,外加数据库创建脚本,对你可能有帮助-vbLibrary management system

一个用于生成LED点阵屏幕所需的任意汉字的点阵信息工具。-used to produce a lattice LED screen for arbitrary characters lattice information tool.

直接生成segy文件，可直接显示，用C++编写，运行完毕直接生成segy格式的文件。-Directly generated segy documents, can be directly displayed using C++ Prepared finished running directly generate segy formats.

tidsp2407汇编程序例程，完整的源代码。-tidsp2407 assembler routines, complete source code.

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发射部分采用锁相环式频率合成器技术， MC145152和MC12022芯片组成锁相环，将载波频率精确锁定在35MHz，输出载波的稳定度达到4×10-5，准确度达到3×10-5，由变容二极管V149和集成压控振荡器芯片MC1648实现对载波的调频调制；末级功放选用三极管2SC1970，使其工作在丙类放大状态，提高了放大器的效率，输出功率达到设计要求。-Part of the launch phase-locked loop frequency synthesizer using technology, MC145152 and MC12022 PLL chips to lock in the exact carrier frequency 35MHz, the output carrier to achieve the stability of 4 × 10-5, reaching the accuracy of 3 × 10-5 by the varactor diode V149 and integration to achieve MC1648 chip VCO FM modulation on the carrier selection transistor amplifier at the end of class 2SC1970, to work in the C state to enlarge and improve the efficiency of the amplifier output power to meet the design requirements.