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【转】用App Inventor 2实现电子围栏功能 - App应用开发 - 清泛IT社区，为创新赋能！
...而服务器无法支持，则图块提供者可能会发送警告或显示错误的图块。
步骤3 添加多边形组件
1. 先在工作面板中移动地图，找到自己需要定义电子围栏的地方（如动图中的如意小学）。2. 从Map容器中拖动Polygon组件到如意...
ExpressJS - throw er Unhandled error event
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on mac high sierra: lsof -nP -i4TCP:$PORT | grep LISTEN
– Roee
Jul 19 '18 at 4:23
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How to set up Android emulator proxy settings
...er inside the Android emulator, and I want to use the proxy settings on my machine. How can I set this up?
20 Answers
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How can I set the PHP version in PHPStorm?
...ere:
Preferences -> Languages & Frameworks > PHP
and the same on Mac:
PhpStorm -> Preferences (⌘,) -> Languages & Frameworks > PHP
Or with newer versions of PhpStorm in Windows:
File -> Settings -> Languages & Frameworks > PHP
then select your PHP version, for ...
Switching to landscape mode in Android Emulator
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Try:
ctrl+fn+F11 on Mac to change the landscape to portrait and vice versa.
left-ctrl+F11on Windows 7.
ctrl+F11on Linux.
For Mac users, you only need to use the fn key if the setting "Use all F1, F2 etc. keys as function keys" (under System...
Failed to load JavaHL Library
...Builder (which is 32bit) and MountainLion is 64bit, which means by default MacPorts installs everything as 64bit. The version of subclipse I use is 1.8
As i had already installed Subversion and JavaHLBindings I just ran this command:
sudo port upgrade --enforce-variants active +universal
This m...
How to use sed to replace only the first occurrence in a file?
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FYI for Mac users, you have to replace the 0 with a 1, so: sed '1,/RE/s//to_that/' file
– mhost
Oct 5 '14 at 1:24
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How do I use brew installed Python as the default Python?
I try to switch to Homebrew (after using fink and macport) on Mac OS X 10.6.2. I have installed python 2.7 with
19 Answers...
Use jQuery to get the file input's selected filename without the path
... @MikeDeSimone I've tested split('\\').pop(); on Win 7, Ubuntu 11.04 and Mac OS X and it works fine on all of them.
– Alex
Mar 8 '12 at 14:57
3
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adb command not found
...nager
Check Android SDK Platform-Tools
Run the following command on your Mac and restart your Terminal session:
echo export "PATH=~/Library/Android/sdk/platform-tools:$PATH" >> ~/.bash_profile
Note: If you've switched to zsh, the above command should use .zshenv rather than .bash_profile
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