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MQTT 打包后,运行退到后台在返回,mqtt连接掉线问题 - App应用开发 - 清泛...

...调一下这个过程,进行一次连接,就可以了。https://www.fun123.cn/reference/iot/MQTT.html 文档正在翻译进度过半。 试了,切走页面,又切回来,是 0,连接上是2。你通过这个状态进行一个判断,不要让你那个对话框总弹出。 ...
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怎么解决MQTT连接掉线,自动连接问题,同时解决,反复断开连接,断开连接问...

...设置MQTT连接吗,是不是可以统一设置一个?https://www.fun123.cn/reference/iot/MQTT.html 文档正在翻译进度过半。 试了,切走页面,又切回来,是 0,连接上是2。你通过这个状态进行一个判断,不要让你那个对话框总弹出。 ...
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MySQL Query to select data from last week?

... 123 SELECT id FROM tbl WHERE date >= curdate() - INTERVAL DAYOFWEEK(curdate())+6 DAY AND date &...
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Changing column names of a data frame

...k it was asked for data.frame, not data.table – Helix123 Apr 16 '15 at 19:15 add a comment  |  ...
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Android- create JSON Array and JSON Object

... Swapnil KotwalSwapnil Kotwal 4,81233 gold badges4242 silver badges7070 bronze badges add a co...
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Keyword not supported: “data source” initializing Entity Framework Context

... Craig StuntzCraig Stuntz 123k1212 gold badges244244 silver badges266266 bronze badges ...
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实现一个简单的服务端推方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...写Nginx共享内存的话,可以这样操作: shell> curl -d "id=123" http://<HOST>/config 如果要读Nginx共享内存的话,可以这样操作: shell> curl http://<HOST>/config?field=id 注:实际应用时,应该加上权限判断逻辑,比如只有限定的IP地址才能...
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Convert string to a variable name

...reg mentioned, assign to assign the variables. original_string &amp;lt;- c("x=123", "y=456") pairs &amp;lt;- strsplit(original_string, "=") lapply(pairs, function(x) assign(x[1], as.numeric(x[2]), envir = globalenv())) ls() share ...
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Apk location in New Android Studio

... 123 To help people who might search for answer to this same question, it is important to know what...
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Is it possible to specify condition in Count()?

... AdaTheDevAdaTheDev 123k2424 gold badges179179 silver badges181181 bronze badges ...