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https://www.tsingfun.com/it/os_kernel/2494.html 

【解决】bufferevent_openssl.c:228:19: error: storage size of \'methods...

...放入/xunsearch-full-1.4.15/packages/ 目录下,继续执行 setup.sh,问题解决。 xunsearch libevent
https://www.tsingfun.com/it/te... 

linux 通过bind下搭建DNS Server - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ost不够用和避免加端口各种麻烦,以及子目录超级麻烦等问题。那么很多时候需要在开发环境上门绑定多个域名。假如是一个团队开发。那么每个人都去修改hosts是一件很悲剧的事情,那么你需要的就是一台内部的dns服务器。其...
https://bbs.tsingfun.com/thread-3-1-1.html 

OnInitDialog()中SetFocus()设置焦点不起作用解决方法 - VC/MFC - 清泛IT论...

...到控件,否则返回 TRUE } 当然,改为return FALSE;能解决问题,但是感觉不太优雅,使用SendMessage解决,如下: ::SetFocus(m_wndEdit);   ->   ::SendMessage(m_wndEdit, WM_SETFOCUS, 0, 0); 这时,你会发现,输入框确实获得了焦点...
https://bbs.tsingfun.com/thread-1106-1-1.html 

使用照相机时老是弹出 error 201 : the camera d id not return an image ...

问题来自B站:https://message.bilibili.com/?spm_id_from=333.1007.0.0#/reply 解决方法: 1、很可能删除了 “Pictures“ 图片文件夹:/storage/emulated/0/Pictures,这个文件夹不能被相机组件自动创建。 2、官方确认这是一个bug,已修复。确认一下...
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BrightnessTools 拓展:设置手机亮度的工具 · App Inventor 2 中文网

...不需要回复的可留空~ 请描述您的问题(300字以内): 给个鼓励也行呐~o~ 提供截图(仅截取当前可视区域...
https://bbs.tsingfun.com/thread-2686-1-1.html 

ble蓝牙怎么接收中文 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...? 英文能正常显示,中文乱码,那肯定就是字符集编码问题了。 详见:https://www.fun123.cn/reference/iot/bluetooth_codec.html 保证单片机侧和App侧一致的中文编码方式即可。盲猜BLE中应该是UTF8编码,单片机GB2312编码。
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What are the effects of exceptions on performance in Java?

... simplest way is using setjmp and longjmp. That means all registers of the CPU are written to the stack (which already takes some time) and possibly some other data needs to be created... all this already happens in the try statement. The throw statement needs to unwind the stack and restore the val...
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Set selected item of spinner programmatically

...e answer by Marco HC uses Runnable wich is a last resort due to additional CPU load. The answer is - you should simply choose correct place to call to setSelection(), for example it works for me: @Override public void onResume() { super.onResume(); yourSpinner.setSelection(pos); } But ...
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php: determine where function was called from

...> -> ) ) I test the speed on Lenovo laptop: Intel Pentiom CPU N3530 2.16GHz, RAM 8GB global $times; $start = microtime(true); $trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1); $times[] = microtime(true) - $start; Results: count($times): 97 min: 2.6941299438477E-5 max...
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What exactly is a Context in Java? [duplicate]

... boils down that it manages and controls inner parts of the entire device (CPU/HDD/RAM/GPU/etc) without that the enduser has to worry about. In case of Android, as per the linked Javadoc "It allows access to application-specific resources and classes, as well as up-calls for application-level operat...