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App Inventor 2 UrsAI2UDP 拓展 - UDP广播通信协议 · App Inventor 2 中文网
...报通过事件 DataReceived 发布。
UDPListener 组件有两个方法 Start 和 Stop，分别用于启动和停止对 UDP 数据报的监听。有两个事件：DataReceived 在收到数据报时触发，ListenerFailure 表示接收循环因错误而终止。isRunning 属性可用于随时查询...
How to use ADB Shell when Multiple Devices are connected? Fails with “error: more than one device an
...all a file..on multiple devices
FOR /F "skip=1" %x IN ('adb devices') DO start adb -s %x install -r myandroidapp.apk
If you plan on including this in a batch file, replace %x with %%x, as below
FOR /F "skip=1" %%x IN ('adb devices') DO start adb -s %%x install -r myandroidapp.apk
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When converting a project to use ARC what does “switch case is in protected scope” mean?
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For me, the problem started on the middle of a switch and curly brackets did not worked out, unless you have to include {} IN ALL previous case statements. For me the error came when I had the statement
NSDate *start = [NSDate date];
in the p...
What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]
...o the
server default from the previous
connection's setting.
UPDATE: Starting with SQL 2014, for client drivers with TDS version 7.3 or higher, the transaction isolation levels will be reset back to the default.
ref: SQL Server: Isolation level leaks across pooled connections
Here is some a...
Any recommendations for a CSS minifier? [closed]
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Mate. I started that port in 2008 or so. That's 6 odd years ago. I also posted this answer in '09. So please check the dates and get some context before you ask silly q's. Now, go outside and play for a wee bit :)
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Git undo changes in some files [duplicate]
... one you want to edit
# you get an editor with a file and a bunch of lines starting with "pick"
# change the one(s) you want to edit to "edit" and then save the file
git rebase -i <sha1>
# now you enter a loop, for each commit you set as "edit", you get to basically redo that commit from scrat...
HashMap and int as key
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@AdamGent Correct. All class names should start with capitals, I corrected the recommended code.
– gaborsch
Apr 22 '13 at 13:43
3
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MySQL error 2006: mysql server has gone away
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Important Note: I had to restart my mysql server for this effect to take effect. i.e. mysql.server stop, mysql.server start (Oct 2018, MySQL v5.7, MacOS)
– Nitin Nain
Oct 9 '18 at 19:24
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What exactly is Type Coercion in Javascript?
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Let’s start with a short intro to type systems which I think will help you understand the general idea of type coercion.
The type system of a language defines rules that tell us what types of data exist in that language and how t...
A beginner's guide to SQL database design [closed]
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I started with this book: Relational Database Design Clearly Explained (The Morgan Kaufmann Series in Data Management Systems) (Paperback) by Jan L. Harrington and found it very clear and helpful
and as you get up to speed th...