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Mind+ 掌控板、ESP32开发板等硬件如何接入AppInventor？ - 创客硬件开发 - ...
...用 蓝牙客户端 组件。Mind+ 参考代码如下：
2、WIFI（TCP服务器），使用ClientSocketAI2Ext 拓展。
app 息屏后连接会断开，需要深入研究一下 - 用户反馈 - 清泛IT社区，为创新赋能！
如题，tcp，蓝牙，mqtt 等连接都会断开。
有办法避免吗？
重连策略有效解决吗？
Sending email with PHP from an SMTP server
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Is PHP Mailer allowed to be used in paid scripts?
– Luka
Mar 24 '17 at 14:53
2
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Detecting iOS / Android Operating system
... // iOS detection from: http://stackoverflow.com/a/9039885/177710
if (/iPad|iPhone|iPod/.test(userAgent) && !window.MSStream) {
return "iOS";
}
return "unknown";
}
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send/post xml file using curl command line
... from stdin. The
contents of the file must already be
URL-encoded. Multiple files can also
be specified. Posting data from a file
named 'foobar' would thus be done with
--data @foobar.
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Throttling method calls to M requests in N seconds
...e the DelayQueue from java.util.concurrent. It prevents the problem of multiple threads acting on the same entry.
– erickson
Sep 10 '09 at 20:22
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Gmail Error :The SMTP server requires a secure connection or the client was not authenticated. The s
...
This generally happens when you try login from different time zone or IP Address Computer. Your production server and the mail id you have used both are in different time zone. Choose either of these two solutions:
1) Log in to production server via remote access, and sign in to gmail once wit...
Check if a JavaScript string is a URL
Is there a way in JavaScript to check if a string is a URL?
32 Answers
32
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What is the best way to stop people hacking the PHP-based highscore table of a Flash game
...bytecodes are well documented and describe a high-level language (Actionscript) --- when you publish a Flash game, you're publishing your source code, whether you know it or not.
Attackers control the runtime memory of the Flash interpreter, so that anyone who knows how to use a programmable debugge...
Security of REST authentication schemes
...t to SSL, there's really nothing fancy required for authentication in principle. You can again go with web standards and use HTTP Basic auth (username and secret token sent along with each request) as it's much simpler than an elaborate signing protocol, and still effective in the context of a secur...