大约有 22,536 项符合查询结果(耗时:0.0290秒) [XML]
Best practices for exception management in Java or C# [closed]
...nt error codes instead of exceptions... I always thought it was weird that HTTP still uses error codes, even though my application is generating an exception. Why can't HTTP let me pass the exception through as-is?
– Trejkaz
Aug 24 '12 at 4:26
...
C++ auto keyword. Why is it magic?
...aration, as in auto f() -> int, i = 0; is not allowed.
For more info : http://en.cppreference.com/w/cpp/language/auto
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使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...Bluetooth Low Energy - Android Developers”, 2016. [Online]. Available: http://developer.android.com/guide/topics/connectivity/bluetooth-le.html#setup.
[6] ”The Story Behind Bluetooth Technology - Bluetooth Technology Website”, 2016.
[Online]. Available:https://www.bluetooth.com/what-is-bl...
Can dplyr package be used for conditional mutating?
... a == 4 | a == 3 | c == 4 ~ 3
))
Using dplyr 0.7.4
The manual: http://dplyr.tidyverse.org/reference/case_when.html
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text-overflow:ellipsis in Firefox 4? (and FF5)
... use their existing solution.
This should be available for fiddling here:
http://jsfiddle.net/kn9Qg/130/
HTML:
<div id="test">hello World</div>
CSS:
#test {
margin-top: 20px;
width: 68px;
overflow: hidden;
white-space: nowrap;
border: 1px solid green;
}
J...
How to make an Android Spinner with initial text “Select One”?
...
<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@android:id/text1"
style="?android:attr/spinnerItemStyle"
android:singleLine="true"
android:layout_width="match_parent"
android:layout_height="wrap_c...
START_STICKY and START_NOT_STICKY
...e background of this a lot better than the official documentation.
Source: http://android-developers.blogspot.com.au/2010/02/service-api-changes-starting-with.html
The key part here is a new result code returned by the function,
telling the system what it should do with the service if its process
i...
How can I profile Python code line-by-line?
...e (you can connect to a running program and get statistics from it).
See: http://www.pyvmmonitor.com/
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Microsoft Roslyn vs. CodeDom
...slyn state and the different levels of access and control it provides, see http://msdn.microsoft.com/en-us/hh500769
UPDATE
Microsoft just made a new CTP available with additional features and lots of API changes/additions. For details see here.
...
Can JSON start with “[”?
... are curly brackets and square brackets respectively.
Edit
And from here: http://www.ietf.org/rfc/rfc4627.txt
A JSON text is a sequence of tokens.
The set of tokens includes six
structural characters, strings,
numbers, and three literal names.
A JSON text is a serialized object or a...
