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Find an item in List by LINQ?
...list).
1) Single will return a single result, but will throw an exception if it finds none or more than one (which may or may not be what you want):
string search = "lookforme";
List<string> myList = new List<string>();
string result = myList.Single(s => s == search);
Note SingleO...
How do I get my Python program to sleep for 50 milliseconds?
...
Note that if you rely on sleep taking exactly 50 ms, you won't get that. It will just be about it.
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How to read keyboard-input?
...
try
raw_input('Enter your input:') # If you use Python 2
input('Enter your input:') # If you use Python 3
and if you want to have a numeric value
just convert it:
try:
mode=int(raw_input('Input:'))
except ValueError:
print "Not a number"
...
How can I split and parse a string in Python?
...]: ['2.7.0', 'bf4fda703454']
This splits the string at every underscore. If you want it to stop after the first split, use "2.7.0_bf4fda703454".split("_", 1).
If you know for a fact that the string contains an underscore, you can even unpack the LHS and RHS into separate variables:
In [8]: lhs, ...
detect key press in python?
I am making a stopwatch type program in python and I would like to know how to detect if a key is pressed (such as p for pause and s for stop), and I would not like it to be something like raw_input that waits for the user's input before continuing execution. Anyone know how to do this in a while lo...
App Inventor 2 远程音频播放教程 - 网络音乐与语音播放 · App Inventor 2 中文网
...完毕"
// 自动播放下一首
var 当前索引 = 当前索引 + 1
if 当前索引 1 {
var 当前索引 = 当前索引 - 1
播放当前()
}
}
when 按钮_下一首.Click() {
if 当前索引 < length(播放列表) {
var 当前索引 = 当前索引 + 1
播放当前()
}
}...
本地通知使用指导 · App Inventor 2 中文网
..., "稍后提醒"))
}
when 本地通知1.ButtonClicked(编号, 按钮) {
if 按钮 == "稍后提醒" {
计时器_稍后.TimerInterval = 300000
计时器_稍后.TimerEnabled = true
}
}
when 计时器_稍后.Timer() {
计时器_稍后.TimerEnabled = false
本地通知1.ShowWithButtons...
How do I sort an observable collection?
.... For larger collections watch out for the number of collection changed notifications.
I have updated my code to improve performance (thanks to nawfal) and to handle duplicates which no other answers here do at time of writing. The observable is partitioned into a left sorted half and a right unsort...
Is it possible to get CMake to build both a static and shared version of the same library?
...e-use object files for both static and shared target. Especially, general knowledge in SO is still very confusing about it, old/archives don't help to clarify it either, eg. cmake.org/pipermail/cmake/2008-March/020315.html A solid explanation of the status quo is needed. p.s. It wasn't me who downv...
Response.Redirect to new window
...w.
<script type="text/javascript">
function fixform() {
if (opener.document.getElementById("aspnetForm").target != "_blank") return;
opener.document.getElementById("aspnetForm").target = "";
opener.document.getElementById("aspnetForm").action = opener.location.href...