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Plot two histograms on single chart with matplotlib
...dom
import numpy
from matplotlib import pyplot
x = [random.gauss(3,1) for _ in range(400)]
y = [random.gauss(4,2) for _ in range(400)]
bins = numpy.linspace(-10, 10, 100)
pyplot.hist(x, bins, alpha=0.5, label='x')
pyplot.hist(y, bins, alpha=0.5, label='y')
pyplot.legend(loc='upper right')
pyplot....
App Inventor 2 Markdown 自研拓展：Markdown 格式渲染、转换为HTML、生成...
...是 Markdown 文本。
渲染完成会触发 OnPreviewReady。
when 按钮_预览.Click() {
Markdown1.MarkdownPreview(垂直布局_预览, 文本输入框_源码.Text)
}
when Markdown1.OnPreviewReady() {
标签_提示.Text = "渲染完成"
}
实时渲染大模型的回答
...
How to wait for a BackgroundWorker to cancel?
...e BackgroundWorker worker = new BackgroundWorker();
private AutoResetEvent _resetEvent = new AutoResetEvent(false);
public Form1()
{
InitializeComponent();
worker.DoWork += worker_DoWork;
}
public void Cancel()
{
worker.CancelAsync();
_resetEvent.WaitOne(); // will block until _re...
Is it possible to use getters/setters in interface definition?
...ple {
Name: string;
}
class Example implements IExample {
private _name: string = "Bob";
public get Name() {
return this._name;
}
public set Name(value) {
this._name = value;
}
}
var example = new Example();
alert(example.Name);
In this example, the inte...
React.js: onChange event for contentEditable
...tChange}
contentEditable
dangerouslySetInnerHTML={{__html: this.props.html}}></div>;
},
shouldComponentUpdate: function(nextProps){
return nextProps.html !== this.getDOMNode().innerHTML;
},
emitChange: function(){
var html = this.getDO...
Python memory leaks [closed]
...arbage collection module actually can have debug flags set. Look at the set_debug function. Additionally, look at this code by Gnibbler for determining the types of objects that have been created after a call.
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How do I ignore ampersands in a SQL script running from SQL Plus?
...e code below:
set escape on
and put a \ beside & in the left 'value_\&_intert'
Att
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Regex - Should hyphens be escaped? [duplicate]
...hese cases, you'll typically see everything escaped (e.g. [a-z\%\$\#\@\!\-\_]) simply because the engineer doesn't know what's "special" and what's not... so they "play it safe" and obfuscate the expression with loads of excessive backslashes. You'll be doing yourself, your contemporaries, and your ...
Check whether a path is valid in Python without creating a file at the path's target
...
tl;dr
Call the is_path_exists_or_creatable() function defined below.
Strictly Python 3. That's just how we roll.
A Tale of Two Questions
The question of "How do I test pathname validity and, for valid pathnames, the existence or writabilit...
Retrieve only the queried element in an object array in MongoDB collection
...atched shapes element:
db.test.find(
{"shapes.color": "red"},
{_id: 0, shapes: {$elemMatch: {color: "red"}}});
Returns:
{"shapes" : [{"shape": "circle", "color": "red"}]}
In 2.2 you can also do this using the $ projection operator, where the $ in a projection object field name repre...