visual-oscilloscope

HP Command reference

计算校验和 校验和算法描述：为保证网络上传输的数据的可靠性，在许多协议中都设置了校验和项，例如：IPv4、ICMPv4、IGMPV4、ICMPv6、UDP和TCP 等等。计算这些校验和的算法称为网际校验和算法，简单来说就是：把被校验的数据１６位进行累加，然后取反码，若数据字节长度为奇数，则数据尾部补一个字节的０以凑成偶数。 由于从输入文件读入的数据不能直接满足计算校验和的条件，所以首先对从文件读入缓冲区的数据进行预处理，即读入缓冲区时忽略空格。由于累加是按16位进行的，所以每次从缓冲区中读出4个字符，并将字符转换成对应的16进制数字，如此依次累加，直至数据全部读完。 还有一种情况，即如果数据长度为奇数个字节，则需要判断，并补0累加。程序中利用的是缓冲区长度计数器i和当前读取到计数器j判断数据长度是否为奇数。即如果数据长度为偶数，则读完数据时当前读取到计数器j的值应与缓冲区长度i相等，而如果数据长度为奇数，则读完数据时，当前读取到计数器j>缓冲区长度i，此时需将缓冲区中剩余的两个字符读出，并补0，转换成相应16进制数以后参与累加。 当累加结束后，将累加和的16位以上数据位移下再进行一次累加，并对最后累加和取反即得所求校验和。 -calculated checksum checksum algorithm Description : To ensure the network transmission of data reliability, in many of the agreements are set up and calibration, for example : IPv4, ICMPv4, IGMPV4, ICMPv6. UDP and TCP so on. Calculating checksum algorithm called the Internet checksum algorithm, the simple answer is : as has been the calibration data for 16 cumulative, and then take the anti-code, if the data byte length of the odd, data will make up the tai

利用API函数编写的程序,可以实现文件的自由传送!-prepared using the API function procedures, the document can be achieved free!

Tests of basic UI logic in the AccountSetupOptions screen for Andriod.

程序描述了网络开发过程中，线程池的开发、使用-Procedure describes the network development process, the thread pool of the development, use

TCP发包客户端编程，可以设置目的IP，目的端口-TCP client contract programming, you can set the purpose of IP, destination port

TSAPI开发的原代码,,对于做CTI中间件很有帮助()

以实例为背景学习基于MFC的WINDOWS应用程序设计，编写一个模拟时钟程序，此程序在屏幕左边有一个指针式钟面，右方有两个矩形框，上面以数字方式显示日期和时间，该时间应与指针显示的时间一致，下方的矩形框作为秒表。用菜单选项或按钮设置时间和秒表。时间不必与机器系统时间相同，可任意设置。(Background-instance learning WINDOWS MFC-based application design, the preparation of an analog clock program, this program has a pointer on the screen on the left clock face, on the right there are two rectangular box, above digitally display the date and time, which should be consistent with the pointer display time, and the lower rectangular box as a stopwatch. With a menu option or button to set the time and stopwatch. Time Machine does not have the same system time can be set arbitrarily.)

文件的一些操作，主要功能为配置tomcat的http和HTTPS的端口访问地址(Some operations, the main function of a file is accessed the address http and HTTPS port configuration of the tomcat)

说明：  相控阵雷达数字多波束形成仿真程序,自己编写，非常好用，适合新手学习(Digital Multi-Beam Forming Simulation Program for Phased Array Radar)