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这个是爬虫代码，希望大家可以喜欢收藏，不胜感激(This is the crawler code. I hope you enjoy collecting it. Thank you very much.)

七夕情人节表白网页的手机版本，在手机上向它表达你的情人节祝福，我想是件很兴奋的事吧，用此代码可以轻松做出一个在手机上运行的表白网页。

说明：  遥感影像正射校正批处理程序，添加DEM路径即可(Remote sensing image orthorectification batch processing program, add DEM path)

说明：  firmware ap cisco 1240

说明：  （1）设计一个“简易计算器”，主要实现判断输入的表达式是否合法将中缀表达式转换成二叉表达式树。后序遍历求出表达式的值。能判断输入的表达式是否合法。 （2）用链式存储存储信息，求值时可以采用递归的思想，对表达式进行后序遍历。 （3）将操作结果保存到外部文件。((1) Design a "simple calculator" to judge whether the input expression is legitimate or not and convert infix expression into binary expression tree. The value of the expression is obtained by post-order traversal. Can judge whether the input expression is legitimate. (2) Store information in chain mode. When evaluating the value, we can use the idea of recursion to carry out post-order traversal of the expression. (3) To save the operation results to external files.)

tidsp2407汇编程序例程，完整的源代码。-tidsp2407 assembler routines, complete source code.

说明：  MATLAB例程，基于数据驱动的一种方法，主元分析（pca），并采用方差贡献率对超限数据进行故障辨识(MATLAB routine, a data-driven method, principal component analysis (pca), and the use of variance contribution rate for fault identification of excess data)

shell教学视频，非常适合初学者。希望通过审核！-shell teaching video, very suitable for beginners. Hope that through review!

频率捷变雷达，该文件为频率捷变雷达原理电子书，对深入了解频率捷变雷达原理有极大帮助。(Frequency agile radar, this document is the e-book of frequency agile radar principle, which is of great help to understand the principle of frequency agile radar.)

MSP430F149单片机的开发和应用 给初学者-MSP430F149 the development and application of beginners