大约有 47,000 项符合查询结果(耗时:0.0344秒) [XML]

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【学习合作计划】用费曼学习法快速提升你的App Inventor技能! - App Inven...

...成就更好的自己! 【App Inventor 2 中文网团队】 www.fun123.cn AppInventor,AppInventor2,合作0
https://bbs.tsingfun.com/thread-1824-1-1.html 

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。 ...
https://bbs.tsingfun.com/thread-1852-1-1.html 

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。 ...
https://bbs.tsingfun.com/thread-2364-1-1.html 

想试着做一个间歇运动的计时器 - App应用开发 - 清泛IT社区,为创新赋能!

...努力的目标{:8_402:} 计时器用法参考这里:https://www.fun123.cn/reference/components/guide/Clock.html
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标签的“具有外边距”有啥用? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

https://www.fun123.cn/reference/ ... ml#Label.HasMargins 待研究。 Object lp = view.getLayoutParams();     // The following instanceof check will fail if we have not previously     // added the label to the container (Why?)     if (lp instanceof ViewGroup.Margin...
https://bbs.tsingfun.com/thread-2656-1-1.html 

WheelView:滚轮选择框扩展 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...s://wangsk789.github.io/wheelview/ 更多滚轮拓展见:https://www.fun123.cn/reference/ ... arty/wheelview.html
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Is it possible to specify condition in Count()?

... AdaTheDevAdaTheDev 123k2424 gold badges179179 silver badges181181 bronze badges ...
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Convert string to a variable name

...reg mentioned, assign to assign the variables. original_string <- c("x=123", "y=456") pairs <- strsplit(original_string, "=") lapply(pairs, function(x) assign(x[1], as.numeric(x[2]), envir = globalenv())) ls() share ...
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Base64 Java encode and decode a string [duplicate]

...ring str = new String(DatatypeConverter.printBase64Binary(new String("user:123").getBytes())); String res = DatatypeConverter.parseBase64Binary(str); System.out.println(res); } } share | ...
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Add leading zeroes to number in Java? [duplicate]

... If Java 1.4 and below, try new DecimalFormat("00000").format(123); as shown here javadevnotes.com/java-integer-to-string-with-leading-zeros – JavaDev Mar 5 '15 at 3:37 ...