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APP INVENTOR硬件交互学习教程03——巧借arduino nano 配置HC-05 - 创客硬...
1.HC-05模块有两种模式
配置模式：进入方式，上电前按住模块按键，通电LED慢闪即进入配置模式，默认波特率38400，数据为8，停止位1
通信模式：不按下按键，上电就是这个模式，默认串口波特率9600，数据位8，停止位1
2.ardu...
Can I write a CSS selector selecting elements NOT having a certain class or attribute?
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使用Activity启动器组件 · App Inventor 2 中文网
...，例如，
Action：android.intent.action.VIEW
DataUri：https://www.fun123.cn
使用预先指定的消息启动邮件程序
2020 年 1 月 26 日：此示例已更新以适应 android 中的更改。 此处显示的电子邮件发送代码将在下一个应用程序发明者版本中运行，...
Finishing current activity from a fragment
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Get selected option text with JavaScript
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Why is the use of alloca() not considered good practice?
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edited Jan 10 '19 at 15:10
Cristian Ciupitu
17.3k77 gold badges4646 silver badges6868 bronze badges
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How do you merge two Git repositories?
...ree:
Add 'rails/' from commit <rev>
Where <rev> is a SHA-1 commit hash. You can still see the history, blame some changes.
git log <rev>
git blame <rev> -- README.md
Note that you can't see the directory prefix from here since this is an actual old branch left intact...
Find a Pull Request on Github where a commit was originally created
...e search bar, make sure you select the "Issues" link on the left.
UPDATED 13 July 2017
Via the Github UI there is a now a really easy way to do this. If you are looking at a commit in the list of commits in a branch in the UI, click on the link to the commit itself. If there is a PR for that commi...