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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。
apk安装报错：packageInfo is null？ - 用户反馈 - 清泛IT社区，为创新赋能！
编译设置问题，包名中没有英文点.，已修复，加了包名验证提示。
mqtt协议一般最大支持订阅几个主题？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...般几十到几百。以下来自AI的回答。
这是一个非常好的问题，但它没有一个简单的固定数字作为答案。MQTT协议规范本身并没有硬性规定一个客户端可以订阅主题的最大数量。这个限制主要取决于以下三个方面：MQTT代理（Broker...
求大佬解答 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
这种情况是什么问题啊大概率是由于屏幕名称不符合要求，请提供一下aia具体看看。
MySQL offset infinite rows
...
use php 'PHP_INT_MAX' to avoid overflow effects.
– Karl Adler
Apr 7 '14 at 15:11
| ...
NGINX: upstream timed out (110: Connection timed out) while reading response header from upstream
...eam, client:xxxxxxxxxxxxxxxxxxxxxxxxx", upstream: "fastcgi://unix:/var/run/php/php5.6-fpm.sock", host: "xxxxxxxxxxxxxxx", referrer: "xxxxxxxxxxxxxxxxxxxx"
So i have to adjust the fastcgi_read_timeout in my server configuration
location ~ \.php$ {
fastcgi_read_timeout 240;
...
}
See:...
How do I modify the URL without reloading the page?
...can understand the security risks with modifying the domain name (phishing etc.), but why don't browsers allow just the part of the URL to the right of the top level domain to be modifiable via script?
– Sunday Ironfoot
Apr 29 '10 at 15:58
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How do we control web page caching, across all browsers?
...etHeader("Expires", "0"); // Proxies.
Using ASP.NET-MVC
Response.Cache.SetCacheability(HttpCacheability.NoCache); // HTTP 1.1.
Response.Cache.AppendCacheExtension("no-store, must-revalidate");
Response.AppendHeader("Pragma", "no-cache"); // HTTP 1.0.
Response.AppendHeader("Expires", "0"); // Pro...
How to use the PI constant in C++
...t take this approach, we people make mistakes, rounding, copy&pasting, etc. I think using M_PI is the right approach.
– nacho4d
Jan 21 '14 at 1:47
11
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Styling HTML email for Gmail
...ing templates like those mentioned above from mailchimp, campaign monitor, etc. as they, as you have found, will not work in some email programs. This tool leaves your style section for the mail programs that will read it and puts all the styles inline to get more universal readability in the forma...