第一章关键字...................................................................................................................................9 1.1，最宽恒大量的关键字----auto..........................................................................................11 1.2，最快的关键字---- register............................................................................................... 11 1.2.1，皇帝身边的小太监----寄存器............................................................................. 11 1.2.2，使用register 修饰符的注意点.............................................................................11 1.3，最名不符实的关键字----static........................................................................................12 1.3.1，修饰变量...............................................................................................................12 1.3.2，修饰函数...............................................................................................................13 1.4，基本数据类型----short、int、long、char、float、double........................................... 13 1.4.1，数据类型与“模子”............................................................................................... 14 1.4.2，变量的命名规则...................................................................................................14 1.5，最冤枉的关键字----sizeof...............................................................................................18 1.5.1，常年被人误认为函数...........................................................................................18 1.5.2，sizeof（int）*p 表示什么意思？........................................................................18 1.4，signed、unsigned 关键字................................................................................................19 1.6，if、else 组合.................................................................................................................... 20 1.6.1，bool 变量与“零值”进行比较...............................................................................20 1.6.2, float 变量与“零值”进行比较.................................................................................21 1.6.3，指针变量与“零值”进行比较...............................................................................21 1.6.4，else 到底与哪个if 配对呢？...............................................................................22 1.6.5，if 语句后面的分号............................................................................................... 23 1.6.6，使用if 语句的其他注意事项.............................................................................. 24 1.7，switch、case 组合........................................................................................................... 24 1.7.1，不要拿青龙偃月刀去削苹果.............................................................................. 24 1.7.2，case 关键字后面的值有什么要求吗？.............................................................. 25 1.7.3，case 语句的排列顺序...........................................................................................25 1.7.4，使用case 语句的其他注意事项..........................................................................27 1.8，do、while、for 关键字................................................................................................... 28 1.8.1，break 与continue 的区别.....................................................................................28 1.8.2，循环语句的注意点...............................................................................................29 1.9，goto 关键字......................................................................................................................30 1.10，void 关键字....................................................................................................................31 1.10.1，void a？............................................................................................................31 1.10，return 关键字................................................................................................................. 34 1.11，const 关键字也许该被替换为readolny....................................................................... 34 1.11.2，节省空间，避免不必要的内存分配，同时提高效率.................................... 35 1.12，最易变的关键字----volatile.......................................................................................... 36 1.13，最会带帽子的关键字----extern.................................................................................... 37 1.14，struct 关键字..................................................................................................................38
标签： c语言深度剖析
上传时间： 2015-05-01
上传用户：cascas
matlab有限元网格划分程序 DistMesh is a simple MATLAB code for generation of unstructured triangular and tetrahedral meshes. It was developed by Per-Olof Persson (now at UC Berkeley) and Gilbert Strang in the Department of Mathematics at MIT. A detailed description of the program is provided in our SIAM Review paper, see documentation below. One reason that the code is short and simple is that the geometries are specified by Signed Distance Functions. These give the shortest distance from any point in space to the boundary of the domain. The sign is negative inside the region and positive outside. A simple example is the unit circle in 2-D, which has the distance function d=r-1, where r is the distance from the origin. For more complicated geometries the distance function can be computed by interpolation between values on a grid, a common representation for level set methods. For the actual mesh generation, DistMesh uses the Delaunay triangulation routine in MATLAB and tries to optimize the node locations by a force-based smoothing procedure. The topology is regularly updated by Delaunay. The boundary points are only allowed to move tangentially to the boundary by projections using the distance function. This iterative procedure typically results in very well-shaped meshes. Our aim with this code is simplicity, so that everyone can understand the code and modify it according to their needs. The code is not entirely robust (that is, it might not terminate and return a well-shaped mesh), and it is relatively slow. However, our current research shows that these issues can be resolved in an optimized C++ code, and we believe our simple MATLAB code is important for demonstration of the underlying principles. To use the code, simply download it from below and run it from MATLAB. For a quick demonstration, type "meshdemo2d" or "meshdemond". For more details see the documentation.
标签： matlab有限元网格划分程序
上传时间： 2015-08-12
上传用户：凛风拂衣袖
PSPICE是由SPICE（Simulation Program with Integrated Circuit Emphasis）发展而来的用于微机系列的通用电路分析程序。于1972年由美国加州大学伯克利分校的计算机辅助设计小组利用FORTRAN语言开发而成，主要用于大规模集成电路的计算机辅助设计。
标签： Pspice 仿真
上传时间： 2015-12-04
上传用户：kendisc
各种 AND 与门 ANTENNA 天线 BATTERY 直流电源 BELL 铃,钟 BVC 同轴电缆接插件 BRIDGE 1 整流桥(二极管) BRIDGE 2 整流桥(集成块) BUFFER 缓冲器 BUZZER 蜂鸣器 CAP 电容 CAPACITOR 电容 CAPACITOR POL 有极性电容 CAPVAR 可调电容 CIRCUIT BREAKER 熔断丝 COAX 同轴电缆 CON 插口 CRYSTAL 晶体振荡器
上传时间： 2017-04-27
上传用户：韩亚楠999
I2C（Inter－Integrated Circuit）总线是由PHILIPS公司开发的两线式串行总线，用于连接微控制器及其外围设备。是微电子通信控制领域广泛采用的一种总线标准。
上传时间： 2017-05-10
上传用户：simon_edthorek
Introduction jSMPP is a java implementation (SMPP API) of the SMPP protocol (currently supports SMPP v3.4). It provides interfaces to communicate with a Message Center or an ESME (External Short Message Entity) and is able to handle traffic of 3000-5000 messages per second. jSMPP is not a high-level library. People looking for a quick way to get started with SMPP may be better of using an abstraction layer such as the Apache Camel SMPP component: http://camel.apache.org/smpp.html Travis-CI status: History The project started on Google Code: http://code.google.com/p/jsmpp/ It was maintained by uudashr on Github until 2013. It is now a community project maintained at http://jsmpp.org Release procedure mvn deploy -DperformRelease=true -Durl=https://oss.sonatype.org/service/local/staging/deploy/maven2/ -DrepositoryId=sonatype-nexus-staging -Dgpg.passphrase=<yourpassphrase> log in here: https://oss.sonatype.org click the 'Staging Repositories' link select the repository and click close select the repository and click release License Copyright (C) 2007-2013, Nuruddin Ashr uudashr@gmail.com Copyright (C) 2012-2013, Denis Kostousov denis.kostousov@gmail.com Copyright (C) 2014, Daniel Pocock http://danielpocock.com Copyright (C) 2016, Pim Moerenhout pim.moerenhout@gmail.com This project is licensed under the Apache Software License 2.0.
上传时间： 2019-01-25
上传用户：dragon_longer
集成电路（integrated circuit）是一种微型电子器件或部件。采用一定的工艺，把一个电路中所需的晶体管、电阻、电容和电感等元件及布线互连一起，制作在一小块或几小块半导体晶片或介质基片上，然后封装在一个管壳内，成为具有所需电路功能的微型结构。
上传时间： 2019-06-14
上传用户：ljianboo
Digital cellular telecommunications system (Phase 2+); Technical realization of the Short Message Service (SMS) Point-to-Point (PP) (3GPP TS 03.40 version 7.5.0 Release 1998)
标签： GSM
上传时间： 2019-06-14
上传用户：twogozi
Texas Instruments常用元件库 TI Analog Timer Circuit.IntLib TI Logic Flip-Flop.IntLib TI Logic Gate 1.IntLib TI Logic Gate 2.IntLib TI Logic Latch.IntLib TI Logic Switch.IntLib TI Power Mgt Voltage Reference.IntLib TI Power Mgt Voltage Regulator.IntLib Texas Instruments Footprints.PcbLib等等
标签： Instruments Texas常用元件库 Altium Designer TI
上传时间： 2019-11-28
上传用户：blue sky
Delphi三层数据库连接池 (1) Connection Pool for Delphi release notes ------------------------------------------------------------------------------- This document contains: - Short description of the product - Other text files - TRIAL version limitations - Delphi - versions supported - Installation of Connection Pool for Delphi - Installation of Connection Pool for Delphi help file - Ordering information - Support and Web resources - Thanks To
上传时间： 2019-12-12
上传用户：me2008
