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Convert Decimal to Double
... by 5000? Just set the TrackBar's Minimum and Maximum values between 0 and 100 and then divide the Value by 100 for the Opacity percentage. The minimum 20 example below prevents the form from becoming completely invisible:
private void Form1_Load(object sender, System.EventArgs e)
{
TrackBar1.M...
Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...(CanvasView)vw).canvas);
9 gc.drawOval( 80 , 50 , 100 , 100 );
10 gc.dispose();
11 }
12 }
13 }
菜单项绘制矩形DrawRectAction.java的关键部分：
1 public void run(IAction action) {
2 // TODO ...
How can I get a count of the total number of digits in a number?
...= 0)
{
if (n < 10) return 1;
if (n < 100) return 2;
if (n < 1000) return 3;
if (n < 10000) return 4;
if (n < 100000) return 5;
if (n < 1000000) return 6;
if (n < 10000000) return 7;
...
How do I add the contents of an iterable to a set?
...s quickly before going public:
>\python27\python -mtimeit -s"it=xrange(10000);a=set(xrange(100))" "a.update(it)"
1000 loops, best of 3: 294 usec per loop
>\python27\python -mtimeit -s"it=xrange(10000);a=set(xrange(100))" "for i in it:a.add(i)"
1000 loops, best of 3: 950 usec per loop
>\p...
How do I generate random numbers in Dart?
... = new Random();
for (var i = 0; i < 10; i++) {
print(rng.nextInt(100));
}
}
This code was tested with the Dart VM and dart2js, as of the time of this writing.
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Using git repository as a database backend
...hat deals with structured document database. I have a tree of categories (~1000 categories, up to ~50 categories on each level), each category contains several thousands (up to, say, ~10000) of structured documents. Each document is several kilobytes of data in some structured form (I'd prefer YAML,...
Sorting object property by values
...Speed = {
car: 300,
bike: 60,
motorbike: 200,
airplane: 1000,
helicopter: 400,
rocket: 8 * 60 * 60
};
var sortable = [];
for (var vehicle in maxSpeed) {
sortable.push([vehicle, maxSpeed[vehicle]]);
}
sortable.sort(function(a, b) {
return a[1] - b[1];
});
//[["bi...
How can I get this ASP.NET MVC SelectList to work?
...yList"] =
new SelectList(new[] { "10", "15", "25", "50", "100", "1000" }
.Select(x => new {value = x, text = x}),
"value", "text", "15");
Then in your view :
<%=Html.DropDownList("myList") %>
...
Getting unique items from a list [duplicate]
...st, such as a Dictionary or HashSet. Because currently, if source contains 100,000 items with many duplicates, then in every one of the 100,000 iterations you will be scanning a list on the order of 100,000 items, meaning you are scanning on the order of 100,000 * 100,000 items. Quadratic time compl...
The maximum recursion 100 has been exhausted before statement completion
...ps%3a%2f%2fstackoverflow.com%2fquestions%2f9650045%2fthe-maximum-recursion-100-has-been-exhausted-before-statement-completion%23new-answer', 'question_page');
}
);
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