PyQt5Tutorial

计算不同荷载作用下浮桥桥节的吃水变化和倾角(the calculation of the draught and dip angle of floating bridge under differnt loads)

AD7745/1D7746的c语言程序，已经调试成功(AD7745/1D7746 c-language program has been successful commissioning)

stm32f103与sca100t通讯程序(program for sca100t with stm32f103)

说明：  1、单向通信 向甲方连续不断地发送变量a的值，未按键，a=0x0f，按键后根据按键确定a值；并将a的值取反从P0口输出，控制D0、D1、D2、D3相应点亮。乙方接收到数据并偶校验正确后，将接收数据取反从P0口输出，控制D0、D1、D2、D3相应点亮。 2、双向通信 甲方连续不断地发送变量a的值，未按键，a=0x0f，按键后根据按键确定a值；乙方未按键不发送，按键后将乙方按键得到的a*16发送；甲乙双方都将发送数据与接收数据相或后再取反，从P0口输出控制D0—D7相应点亮。 3、间隔发送 未按键，甲方不发送数据，按键后甲方每隔50ms连续发送4个字节：0xff、a、a、a。 乙方只在收到甲方数据0xff后的3个数据并验证相同时，才将接收数据*16发送。 甲乙双方都将发送数据与接收数据相或后，从P0口输出控制D0—D7相应点亮。(1. One-way communication The value of variable a is continuously sent to Party A without key, a = 0x0f. After the key is pressed, the value of a is determined according to the key; and the value of a is output from P0 port to control the corresponding lighting of D0, D1, D2 and D3. After receiving the data and checking it correctly, Party B will output the received data from P0 port and control D0, D1, D2 and D3 to light up accordingly. 2. Two-way communication Party A continuously sends the value of variable a without key, a = 0x0f, and determines a value according to the key after the key; Party B does not send the key without key, and sends the a*16 obtained by the key after the key is pressed; Both parties will send the data to or from the receiving data, and then retrieve the data and control D0-D7 from the P0 port to light up accordingly. 3. Interval Sending Without keys, Party A does not send data. After keys, Party A sends 4 bytes continuously every 50 ms: 0xff, a, a.)

说明：  TIM—高级定时器互补输出F4可以使用.多谢使用(TIM-Advanced Timer Complementary Output F4 can be used. Thank you for using it.)

说明：  wyd2 npc修改器源代码。很详细。编译后就可使用。(The source code of the wyd2 NPC modifier. It's very detailed. It can be used after compiling.)

原始数据――网络技术-raw data-- Network Technology

快速傅立叶变换计算多项式，strassen算法计算矩阵相乘，以及其和普通多项式、矩阵乘法的比较-Fast Fourier Transform calculation of polynomial, strassen matrix multiplication algorithm, and its and ordinary polynomials, matrix multiplication comparison

miffy image file. do you like this one.

网络嗅探器在网路安全方面扮演很重要的角色。使用网络嗅探器可以把网卡设置为混杂模式，并可实现对网络上传输的数据包的捕获与分析。次分析结果可供网络安全分析之用，更有可能被用来做一些黑客行为。本文将详细介绍嗅探器的实现原理，并给出一个简单的实例。(Network sniffer plays a very important role in network security. The network sniffer can be used to set the network card as promiscuous mode, and it can capture and analyze the data packets transmitted on the network. The results of sub analysis can be used for network security analysis, and more likely to be used to do some hacker behavior. In this paper, the implementation principle of sniffer is introduced in detail, and a simple example is given.)