大约有 30,000 项符合查询结果(耗时:0.0402秒) [XML]

https://bbs.tsingfun.com/thread-2094-1-1.html 

数据保存到文件管理器,可是找不到,是怎么回事啊? - 用户反馈 - 清泛IT社...

...那个路径了,但就是没有文件 --- 找到了,最终用电脑连接手机,才查到了这个文件
https://bbs.tsingfun.com/thread-2128-1-1.html 

MQTT订阅一次收不到事件触发,多次订阅可以? - 用户反馈 - 清泛IT社区,为...

用户反馈,连接状态正常,在初始化中订阅一次,收不到数据事件触发。 每次点击订阅一次,就能收到。这个需要深入测试一下。
https://bbs.tsingfun.com/thread-2380-1-1.html 

micro:bit 连接报错 - 创客硬件开发 - 清泛IT社区,为创新赋能!

连接micro:bit设备的时候,找到对应的mrico:bit地址了,在连上的一瞬间后直接闪退,并且报错了。 运行故障 java.lang.ExceptionInInitializerError at edu.mit.appinventor.ble.BluetoothLEint$BLEReadOperation.subscribeBluetoothLEint.java:357) at edu.mit.appinventor....
https://bbs.tsingfun.com/thread-2463-1-1.html 

请问各位前辈大佬关于APP熄灭屏幕后停止响应的问题。 - App Inventor 2 拓...

...、让屏幕常亮。 或 2、长时间息屏,再打开App时判断MQTT连接及订阅状态,进行重连、重新订阅。
https://bbs.tsingfun.com/thread-2495-1-1.html 

CustomWebView拓展:WebViewer的扩展版本,具有更高的自定义性和灵活性 - A...

...记录 创建网页快捷方式 下载离线页面并在没有互联网连接的情况下加载 https://community.appinventor.mi ... -of-web-viewer/9934 https://github.com/vknow360/CustomWebView
https://bbs.tsingfun.com/thread-2538-1-1.html 

Modbus硬件控制03——485串口助手控制继电器 - 创客硬件开发 - 清泛IT社区...

...成485调试功能,自带CRC校验,非常易于使用。 2.硬件连接 通过USB转485接入PC 3.测试步骤 发送字符串,一共两条指令 第一条是闭合继电器 第二条是断开继电器
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Number of lines in a file in Java

... The accepted answer has an off by one error for multi line files which don't end in newline. A one line file ending without a newline would return 1, but a two line file ending without a newline would return 1 too. Here's an implementation of the accepted solutio...
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How to set custom location for local installation of npm package?

... When doing this, I am getting error No version provided in package.json – FooBar Aug 30 '16 at 20:06 ...
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Current time formatting with Javascript

... i format date = "2016/03/01 11:00" to date ="Sat Mar 01 2016 11:00:00 GMT+0530 (IST)" – Vishal Singh Feb 25 '16 at 7:27 ...
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How to delete an item in a list if it exists?

...d catch relevant Exceptions: try: some_list.remove(thing) except ValueError: pass # or scream: thing not in some_list! except AttributeError: call_security("some_list not quacking like a list!") Off course the second except clause in the example above is not only of questionable humor...