xbee-python-master

北航计算机组成原理测试题目（附参考答案） 包括： 作业1,2,3,5,6.(Northern computer composition principle test questions (with suggested answers) include: Job 1,2,3,5,6.)

（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.)

常住人口 管理菜单：用户管理 | 增加数据 | 按(户号，户主姓名，姓名，身份证号，单位，车型)查询, 单位是自动生成. 分页查询 增加数据 (户 别： 户主姓名： 与户主关系： 姓 名： 性 别： 联系电话： 曾用名： 民 族：(Resident population management menu: user management According to (household number, household name, name, identity card number, unit, vehicle type) query, the unit is automatically generated. Paging query. Add data (household name: name of the head of the household: relationship with the head of the household: Name: sex: contact phone: Great name: the nation:)

一款使用纯CSS3制作的效果非常炫酷的全屏百叶窗效果幻灯片特效(A total of 15 different effects of pure CSS3 sliding buttons. These sliding buttons pass through the)

说明：  STM32 handbook (Rus), Real HW in real life.

201个scrpt(VBA开发代码 AO)(201scrpt(VBAcodes AO))

类似音量控制的VB滑块应用实例源码，很多个排列整齐的滑块，可在鼠标的操作下拖动位置，实现某种功能，可用于程序参数面板中，用于设置某项参数和数值，具体效果请参见截图。

说明：  一个很酷的多地区时间显示,视角是从北极往下看的地球(a cool much of the time, the perspective is to look down from the North Pole of the Earth)

说明：  有源压制式干扰仿真分析，射频噪声干扰、噪声调频干扰、噪声调幅干扰与噪声调相干扰四个部分(Simulation analysis of active suppression jamming,radio frequency noise jamming, noise frequency modulation jamming, noise amplitude modulation jamming and noise phase modulation jamming)

说明：  复合材料VUMAT层压板三维分析，失效准则为蔡-吴失效(Three dimensional analysis of composite laminates using VUMATwith Tsai-Wu failure criterion)