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怎么通过app inventor接收mqtt平台推送的长消息 - App Inventor 2 中文网 -...

...报错信息。 接收的base64编码的图片,可以是使用拓展解码还原成图片:https://www.fun123.cn/reference/ ... A%E5%AA%92%E4%BD%93我想制作一个门禁系统,把摄像头采集的图片通过MQTT平台发送给app inventor我的手机现在可以接收到短消息,这...
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UCenter实现各系统通信的原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...e设置cookie; 4、各个应用在适当的文件中用对应的密钥解码上面设置的cookie,得到用户id等数据;通过这个值来判断用户是否经过其它应用登录过; 以discuz举例: 一、用户登录检查与用户登录验证logging.php 在bbs的logging.ph...
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App Inventor 2 低功耗蓝牙 BlueToothLE 拓展 · App Inventor 2 中文网

...utf16 参数指示在转换为 App Inventor字符串 时是否应将内容解码为 UTF-16(真)或 UTF-8(假)编码格式。读取字符串后,将触发 StringsReceived 事件。 参数: serviceUuid (text) — 在读取或注册调用中传递的服务UUID。 ...
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ATL正则表达式库使用 - C/C++ - 清泛网 - 专注C/C++及内核技术

...,需要对Client发送过来的地址、命令等复杂文字字段信息解码,而正则表达式是公认的最强大的文字解析工具,所...ATL中,由于ATL Server的需要,需要对Client发送过来的地址、命令等复杂文字字段信息解码,而正则表达式是公认...
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input() error - NameError: name '…' is not defined

...ered May 6 '18 at 19:45 Skiller DzSkiller Dz 67366 silver badges1616 bronze badges ...
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Printing tuple with string formatting in Python

...First: {}, Second: {}, Third: {}'.format(*tup)). – m-dz Aug 23 '18 at 8:53 add a comment  |  ...
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R command for setting working directory to source file location in Rstudio

... Working perfectly if sourced. – m-dz Jul 20 '16 at 13:24 2 Worked for me in RS...
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Stripping everything but alphanumeric chars from a string in Python

... chars too can you tell me how to keep them – Charif DZ Jan 6 '17 at 19:25 add a comment  |  ...
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How to print time in format: 2009‐08‐10 18:17:54.811

...f,30,"%Y:%m:%dT%H:%M:%S", tm); strcat(buf,"."); sprintf(usec_buf,"%dZ",(int)tmnow.tv_usec); strcat(buf,usec_buf); printf("%s",buf); return 0; } share | improve this answer ...
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Python logging: use milliseconds in time format

...nfig(datefmt='%Y-%m-%dT%H:%M:%S', format='%(name)s | %(asctime)s.%(msecs)03dZ | %(message)s', level=log_level) – Mark Mar 14 '19 at 0:38 ...