ML TOP223P开关电源（PCB） TOP223P.PCB

孙鑫深入详解VC++代码,配合书看很经典的-Code for sunxin s VC++

数独解法，能够解不要求回溯的数独问题，目前只支持用户自己出题。-Sudoku Solution, to the solution does not require backtracking Sudoku problem, currently only supports the user

此程序用fortran编写 功能: 1、是计算在载荷作用下的平面桁架位移以及杆件的轴力。轴力符号规定，受拉为正，受压为负。另外还哼计算支座反力。 2、对桁架的节点编号，采取先编可动节点，接着再编固定节点。 3、计算多工况问题 此程序出自《杆系结构程序设计》，有改动，原程序有错误-the procedure used to prepare fortran functions : 1. calculation of the load under the plane truss rod displacement and the axial force. Symbol axial force, the tension is positive, negative pressure. It also supports anti-hum calculating power. 2, the number of nodes truss, the first series to take movable joints, and then re-allocation fixed nodes. 3, the calculation of multi-state issues this procedure from the "bar structural design process," with changes, the original procedure is wrong

本设计的目的是通过设计和调试一个简单的文件系统，主要是模拟文件操作命令的执行，来模拟文件管理，使学生对主要文件操作命令的实质和执行过程有比较深入的了解，掌握它们的基本实施方法。具体要求如下： （1） 设计一个支持n个用户的文件系统，每个用户可拥有多个文件： （2） 采用二级或二级以上的多级文件目录管理； （3） 对文件应设置存去控制保护方式，如“只能执行”、“允许读”、“允许写等”； （4） 系统的外部特征应接近于真实系统，可设置下述文件操作命令： 命 令 功 能 命 令 功 能 Create 建立文件 Read 读文件 Open 打开文件 Write 写文件 Close 关闭文件 Copy 复制文件 Delete 撤消文件 Directory 查询目录 （5） 通过键盘使用该文件系统，系统应显示操作命令的执行结果。-the purpose of this design is by designing and debugging a simple file system, main operation is simulated documents the execution of the order to simulate document management, enable students to the main document commands the substance and the implementation process of a more in-depth understanding, They grasp of the basic method. Specific requirements are as follows : (1) design a support n user file system, each user can have multiple files : (2) use of two or more than two multi-level directory management; (3) the document should be set up to deposit control and protection methods, such as "the only

俄罗斯方块,fdjkdkflfjldljkdflkdfkldlk dlk -Russia squares fdjkdkflfjldljkdflkdfkldlk dlk

用vb编的一个电子邮箱管理程序，希望对visual basic编程感兴趣和希望了解电子邮箱管理软件程序原理的人有所帮助-With vb for a e-mail management process, in the hope that interested in visual basic programming and would like to know e-mail management software program to help the people of principle! !

一个用VC编写的俄罗斯方块游戏。-a VC sheet prepared by the Russian game.

一些纠错编码源代码-some source code error correction coding

使用Matlab设计一个简单的滤波器小程序-Use Matlab to design a simple filter applet

VIPer53设计的开关电源,SCH及PCB,效率56％,很想提高效率,但有点难度.希望大家讨论.-VIPer53 switching power supply design, SCH and PCB, the efficiency of 56 percent, wanted to improve efficiency, but it