htyk

自己编的腐蚀源程序，希望对大家有用(own series of the corrosion source, we want to help!)

说明：  PFC2D直接剪切试验，生成颗粒粒径在0.1mm-0.5mm范围，采用伺服机制控制(BP neural network optimization algorithm based on genetic algorithm)

JJG 649-1990 数字称重显示器检定规程(weight indicator test procedure)

K-means算法是基于划分的思想，因此算法易于理解且实现方法简单易行，但需要人工选择初始的聚类数目即算法是带参数的。类的数目确定往往非常复杂和具有不确定性，因此需要专业的知识和行业经验才能较好的确定。而且因为初始聚类中心的选择是随机的，因此会造成部分初始聚类中心相似或者处于数据边缘，造成算法的迭代次数明显增加，甚至会因为个别数据而造成聚类失败的现象。(K-means algorithm is based on the idea of partitioning, so the algorithm is easy to understand and the implementation method is simple and feasible, but it requires manual selection of the initial number of clusters, that is, the algorithm is with parameters. The number of classes is often very complex and uncertain, so professional knowledge and industry experience are needed to better determine. Moreover, because the selection of initial clustering centers is random, some initial clustering centers will be similar or at the edge of data, resulting in a significant increase in the number of iterations of the algorithm, and even the phenomenon of clustering failure due to individual data.)

GPS高程转换系统，主要实现了GPS的水准拟合。直接把RAR后缀该为EXE即为可执行程序。-GPS Height conversion systems, the main GPS standard fitting. RAR directly to the EXE suffix shall be executable.

迷宫问题，可以自己设计迷宫，然后通过程序找到相应的出口。(You can design maze by yourself,then find the appropriate exit through the program.)

通过按键在数码管进行简单的充值和消费。比如数码管的数值是100，按一个按键消费10，那么按另一个按键是充值10元，(Through the button in the digital tube for simple recharge and consumption. For example, the number of digital tube is 100, the consumption of 10 by one button is 10 yuan by another key.)

this programme oper is very efficient

All-in-One WP Migration 7.2 / wordpress 备份还原，网站搬家工具(Details Reviews Installation Support Development Description This plugin exports your WordPress website including the database, media files, plugins and themes with no technical knowledge required. Upload your site to a different location with a drag and drop in to WordPress. There is an option to apply an unlimited number of find and replace operations on your database during the export process. The plugin will also fix any serialisation problems that occur during the find/replace operation.)

to do string manipulation using c