...？没办法收发HEX，蓝牙组件的有写字节功能，TCP网络组件没有。答：发送文本消息时，hexaStringMode 问：app inventor的给网络发16进制指令的方法，可以赐教吗？软件只能发ASCLL码？没办法收发HEX，蓝牙组件的有写字节功能，TCP网络...

Service and Characteristic are not published by the connected device，报错如下： 问题原因：硬件/蓝牙芯片问题导致的，比如A硬件测试好的，换了B硬件没有修改uuid，就出现这个报错。 由于B硬件没有发布这些特征，就会报这个错误。

...ver. It works both in 32 bit as well as 64 bit servers. I have used it for Excel file manipulation and it worked fine for me in both the environments. But this driver is in BETA. You can download this driver from Microsoft Access Database Engine 2010 Redistributable ...

I'm trying to compile my excel addin using C# 4.0, and started to get this problem when building my project in Visual Studio. It's important to tell you that I haven't had this problem before. What could cause this to happen? ...

...bout development, but Security Now from Steve Gibson and Leo Laporte is an excellent discussion of security issues. I think it's a must-listen for just about any computer user who's concerned about security, and especially for web developers who are responsible both for the security of their site a...

... @Mat's Mug - the problem is that Excel does not have a true Date data-type - excel dates and times are just doubles that depend on whatever format has been applied or changed by the user to appear as dates, times or currency or just a number. So Value is coe...

论中国股市的现状一天，菜市场上多了一个乞丐，有的人给他点钱，但大多数人还是没给，他把给他钱的人的住址都记了下来，结果过了几个小时，一辆宾利停他前面 一天，菜市场上多了一个乞丐，有的人给他点钱，但大多数...

女程序员做个梦，下面的评论惨绝人寰一个女程序员在在twitter上发了一条tweet，本身没啥风浪，奈何一众程序员开始了丧心病狂的评论……Twitter原文：昨晚梦见男朋友和别的女人...一个女程序员在在twitter上发了一条tweet，本身...

...模式一、懒汉模式：即第一次调用该类实例的时候才产生一个新的该类实例，并在以后仅返回此实例。需要用锁，来保证其线程安全性：原因：多个线程 一、懒汉模式：即第一次调用该类实例的时候才产生一个新的该类实例，...

...行查找的方法。使用该函数，需 #include <algorithm>我们查找一个list中的数据，通常...STL的find，find_if函数提供了一种对数组、STL容器进行查找的方法。使用该函数，需添加 #include <algorithm> 我们查找一个vector中的数据，通常用std::...