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App Inventor 2 AI伴侣有电脑版的吗? - App Inventor 2 中文网 - 清泛网 - 专注C/C++及内核技术
...倒不如直接第二种方式）。
综上所述：
1、小朋友编程的话，有条件建议直接使用安卓手机扫二维码测试；否则使用最新版的AIStarter模拟器也可以。
2、对于没有安卓手机的或需要一屏展示效果的，建议第二种：使用商业...
^M at the end of every line in vim
...sy way to strip out the DOS line endings is to use the ff option:
:set ff=unix
:wq
Now your file is back to the good-old-Unix-way.
If you want to add the DOS line-endings (to keep a printer happy, or transfer files with Windows friends who don't have nice tools) you can go the opposite direction...
App Inventor 2 连接方式：AI伴侣、模拟器、USB · App Inventor 2 中文网
...不如直接第二种方式）。
综上所述：
1、小朋友编程的话，有条件建议直接使用安卓手机扫二维码测试；否则使用最新版的AIStarter模拟器也可以。
2、对于没有安卓手机的或需要一屏展示效果的，建议第二种：使用商业...
Add up a column of numbers at the Unix shell
...
... | paste -sd+ - | bc
is the shortest one I've found (from the UNIX Command Line blog).
Edit: added the - argument for portability, thanks @Dogbert and @Owen.
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How to convert the ^M linebreak to 'normal' linebreak in a file opened in vim?
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:e ++ff=dos followed by :set ff=unix will convert the endings to a sane format.
– Mateen Ulhaq
Mar 2 '18 at 2:22
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Why number 9 in kill -9 command in unix? [closed]
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See the wikipedia article on Unix signals for the list of other signals. SIGKILL just happened to get the number 9.
You can as well use the mnemonics, as the numbers:
kill -SIGKILL pid
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psql: FATAL: Peer authentication failed for user “dev”
...atabase user name
-h is the hostname/IP of the local server, thus avoiding Unix domain sockets
-d is the database name to connect to
This is then evaluated as a "network" connection by Postgresql rather than a Unix domain socket connection, thus not evaluated as a "local" connect as you might see ...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...使用厂商提供的App进行IO口控制，也可以使用App Inventor 2 编程实现控制IO口电平的高/低，对应LED的开/关。3、App Inventor 2 开发自己的蓝牙App主要用到 BlueToothLE 拓展，点此查看中文文档。BLE蓝牙的特点是无需配对，设备被扫描后直...
When should I use File.separator and when File.pathSeparator?
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You use separator when you are building a file path. So in unix the separator is /. So if you wanted to build the unix path /var/temp you would do it like this:
String path = File.separator + "var"+ File.separator + "temp"
You use the pathSeparator when you are dealing with a lis...
Listing only directories in UNIX
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With which flavour of Unix do you get tree?
– Johnsyweb
Sep 8 '10 at 12:12
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