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搜索不到ble设备 - App应用开发 - 清泛IT社区，为创新赋能！
使用AI伴侣能搜索到ble设备，但是安装apk后搜索不到,这是怎么回事呢大概率是权限问题，在手机设置将 app 相关权限都打开试试，尤其是发现设备等权限。
App Inventor 2 ECharts 拓展：画仪表图 - App应用开发 - 清泛IT社区，为创新赋能！
仪表图 效果如下：代码如下：
Gauge(startAngle,endAngle,min,max,value)画仪表图。startAngle：起始角度； endAngle：结束角度； min：最小值； max：最大值； value：当前值。角度值参考如下：
来源：https://www.fun123.cn/reference/extensions/ECharts.h...
程序写出来手机app会反转怎么办？怎么固定住？ - App Inventor 2 中文网 - ...
screen1 屏幕方向属性，选择“锁定竖屏”就可以了，这样屏幕就不会横屏和竖屏自动切换了。
【iOS】苹果开发者账号购买及开通问题 - App应用开发 - 清泛IT社区，为创新赋能！
这个状态说明账号购买后尚未激活，需要最多等待 48 小时。
“Certificates, Identifiers & Profiles”（证书、标识符与描述文件）：
https://developer.apple.com/account/resources
Which version of Perl should I use on Windows? [closed]
The win32.perl.org web site provides references to several Perl distributions for MS Windows.
11 Answers
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How can I give eclipse more memory than 512M?
I have following setup, but when I put 1024 and replace all 512 with 1024, then eclipse won't start at all. How can I have more than 512M memory for my eclipse JVM?
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Cmake doesn't find Boost
...ook for boost like this:
SET(CMAKE_INCLUDE_PATH ${CMAKE_INCLUDE_PATH} "C:/win32libs/boost")
SET(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} "C:/win32libs/boost/lib")
Of course, those two lines have to be before the FIND_PACKAGE(Boost) in CMakeLists.txt.
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Which is the correct shorthand - “regex” or “regexp” [closed]
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this answer is full of win
– meder omuraliev
Jun 17 '10 at 1:09
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How do I get the localhost name in PowerShell?
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On Windows 10 Enterprise, env:COMPUTERNAME produced the following error: env:COMPUTERNAME : The term 'env:COMPUTERNAME' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of...
Finding the handle to a WPF window
Windows forms had a property win1.Handle which, if I recall, returns the handle of the main window handle?
4 Answers
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