级联动下拉框

本期刊是微软技术俱乐部内部期刊，只限微软技术俱乐部会员、MS center网站成员订阅。微软技术俱乐部电子期刊为月刊，每月第二周发布。期刊内容包括原俱乐部动态、心声告白、团队建设、技术天地以及心得感悟-The Journal of the club-house Microsoft technical journals, are available only to club members on Microsoft technology, MS center members subscription site. Microsoft Technology Club for the monthly electronic journal, published the second week of each month. Journal of dynamic content including the original club, voice of confession, team building, technology and experience the world sentiment

我们设计的异步电机变频调速器以TMS320F28035芯片为控制核心，通过输出三相PWM波控制智能功率模块IPM驱动三相异步电机。我们使用空间矢量SVPWM算法，并对其进行了优化。采用异步电机无传感器测速算法省去了昂贵的光电编码器，大大节省了成本。同时开创性的研发了自动根据运行环境调节的自适应变频算法，使我们的变频调速器可以在电网条件恶劣的乡村山区工作，由此该变频器已被一家民用水泵生产企业预订。(We design the asynchronous motor frequency conversion governor with TMS320F28035 chip as the control core, and output three-phase PWM wave to control the intelligent power module IPM to drive the three-phase asynchronous motor. We use space vector SVPWM algorithm and optimize it. The sensorless speed measurement algorithm of asynchronous motor eliminates the expensive photoelectric encoder and greatly saves the cost. At the same time, pioneering research automatic conversion algorithm based on adaptive adjustment of the operating environment, we can make VVVF in power grid conditions of rural area, thus the inverter has been a civil pump manufacturer reservation.)

触模屏上输入数字 触模屏上输入数字-touch-screen input digital t ouch-screen input digital t ouch-screen Digital input

说明：  Description of csl_legacyhal Use access to everyone exdcept haha ohoh

说明：  简单计算器.热爱C++,但还是学生，故来此向大家学习。谢谢。(simple calculator)

说明：  基于STM32的TFT驱动和横屏显示控制(TFT Driver and Cross Screen Display Control Based on STM32)

统计输入文件的行数、空格数、元音字母数、辅音字母数、非空白字母数、非空的行数-statistical inputs the line a few, a few spaces, a few vowel and consonant few letters, a few non-blank letters, non-empty rows

一个使用MDB的名片管理程序-MDB use of a card management procedures

Cache Lab: Improving Program Locality

Datcom软件的GUI版，有界面 比普通的Dos操作要方便的多。用于计算气动数据！(Datcom the GUI version of the software, there are interface than the normal operation of the convenience of multi-Dos. Used to calculate the aerodynamic data!)