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BLE 模块 透传问题 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...哪位老师给讲一下。
根据 ble 文档，读写相关方法中的值可以是单个的 8bit 字节，也可以是字节列表（多字节集合）
传文件，需要先用“文件管理器”组件，将文件内容读出来，然后调用 ble 的写方法。感谢老师引用:App Inventor...
AppInventor2列表排序，函数式编程轻松实现高级排序算法 - App Inventor 2 ...
...也是一样的：
按指定数据升序排序：
取列表中最小值：
取列表中最大值：
{:8_315:}
大佬们，串口输出的文本字符怎么不能比较，也不能转换数字类型？ - App应用...
...是弱语言类型，文本和数字之间不用刻意去转换，之间赋值就可以了：https://www.fun123.cn/reference/blocks/text.html#text2num
再次经过测试，你上面的步骤都能正常测试通过，方便的话，能否附上aia源码我这边试下？谢谢
串口接...
怎么实现代码块 - App应用开发 - 清泛IT社区，为创新赋能！
...这 6 张图片放到一个列表中，定义一个全局变量存计数的值，计时事件中这个值对 6 进行取模，+1 去拿列表中的图片，任意代码块中设置图像.图片为列表中拿出的图片。可以参考这个视频：https://m.bilibili.com/video/BV1Xj41147cn
App Inventor 2 低功耗蓝牙 BlueToothLE 拓展之：RequestMTU是否有上限？ -...
RequestMTU
没反应,是不是因为这个值1024太大了
1024没触发,64触发了
MTU设64不报错,设100报错 128报错.256不报错.
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连上后，调用，没有触发回调？
待调查研究这个函数是否有上限。见这篇帖子《ble蓝牙 RequestMTU 请求没有...
【解决】ble蓝牙 RequestMTU 请求没有反应？设置没有生效？ - 创客硬件开发...
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（建议写法）
2、MTUChanged 事件成功触发，但是值不是指定的值？
（确认硬件最大支持 500 MTU）
https://www.fun123.cn/reference/iot/bluetoothle.html#RequestMTU
看文档，它不一定能设置到你指定的值，是双方协商的结果，以事...
Difference between clustered and nonclustered index [duplicate]
...- INT or BIGINT as your default option.
By default, the primary key on a SQL Server table is also used as the clustering key - but that doesn't need to be that way!
One rule of thumb I would apply is this: any "regular" table (one that you use to store data in, that is a lookup table etc.) shoul...
List of all index & index columns in SQL Server DB
How do I get a list of all index & index columns in SQL Server 2005+? The closest I could get is:
30 Answers
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SQL Server: SELECT only the rows with MAX(DATE)
I have a table of data (the db is MSSQL):
11 Answers
11
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How to strip all non-alphabetic characters from string in SQL Server?
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I knew that SQL was bad at string manipulation, but I didn't think it would be this difficult. Here's a simple function to strip out all the numbers from a string. There would be better ways to do this, but this is a start.
CREATE FUNCT...