大约有 1,800 项符合查询结果(耗时:0.0127秒) [XML]

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App Inventor 2 串口组件:App使用OTG数据线进行串口通信 · App Inventor 2 中文网

...以及如何利用手机串口与Arduino硬件进行通信。串口通信波特率:9600。英文原版视频如下: 可以看到,手机串口连接时,没有像PC那样指定“COM3”等端口,而是直接使用默认的USB设备: 切换 ...
https://bbs.tsingfun.com/thread-2366-1-1.html 

低功耗蓝牙接收串口16数据 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...数据通过调用AsciiConversion1模块转化和提取转化都不行。波特率设置为9600,这个很重要!! 经过测试,发送接收的字节都是正常的: 在没有发送数据的时候,不会跳变。 收到的数据还是跳变同样的代码我测试过,一切...
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Display numbers with ordinal suffix in PHP

...ber with ordinal suffix * * @param int $number * * @param int $ss Turn super script on/off * * @return string * */ function ordinalSuffix($number, $ss=0) { /*** check for 11, 12, 13 ***/ if ($number % 100 > 10 && $number %100 < 14) { $os = 'th'; } /...
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How do I get the size of a java.sql.ResultSet?

...ooks like true 65537 "Hey" -32768 "The quick brown fox" false 123456 "Sup" 300 "The lazy dog" false -123123 "Yo" 0 "Go ahead and jump" false 3 "EVH" 456 "Might as well jump" ... [1000 total rows] Simply refactor your code to something like this: Statement s=myConnection.cre...
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MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...

...核对 通过在主服务器上运行pt-table-checksum,它会通过一系列的MySQL函数计算每个表的散列值,利用主从复制关系,把同样的计算过程在从服务器上重放,从而就拿到了主从服务器各自的散列值,只要比较散列值是否相同就OK了。 ...
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How to display PDF file in HTML?

... It shows that plugin not supported in mobile device on chrome browser. – JWC May Dec 22 '18 at 10:16 1 ...
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Google Play app description formatting

...tion does not work and breaks the formatting.) HTML character entities are supported, such as → (→), ™ (™) and ® (®); consult this W3 reference for the exhaustive list. UTF-8 encoded characters are supported, such as é, €, £, ‘, ’, ★ and ☆. Indentation isn...
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Compare two List objects for equality, ignoring order [duplicate]

...While technically correct, the behavior of Contains() may result in O(N<sup>2</sup>) performance. The set operations (Except, Intersect, Union) perform much better if the number of items large. – LBushkin Sep 8 '10 at 17:06 ...
https://bbs.tsingfun.com/thread-1383-1-1.html 

BLE(四)嗅探工具 - 创客硬件开发 - 清泛IT社区,为创新赋能!

...om的BCM20732等。其中,在开发者当中比较知名的是TI的CC254x系列和Nordic的NRF51822,并且这两款产品当有着自己的开发板和用于嗅探的调试工具。。 0x11 CC2540德州仪器的CC2540,是一款高性价比、低功耗的片上系统(SOC)解决方案,适...
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搭建高可用mongodb集群(四)—— 分片 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...10 分别对每个分片配置副本集,深入了解副本集参考本系列前几篇文章。 任意登陆一个机器,比如登陆192.168.0.136,连接mongodb #设置第一个分片副本集 /data/mongodbtest/mongodb-linux-x86_64-2.4.8/bin/mongo 127.0.0.1:22001 #使用admin数据...