大约有 15,000 项符合查询结果（耗时：0.0401秒） [XML]
Resizing an image in an HTML5 canvas
...culates lanczos weight
function lanczosCreate(lobes) {
return function(x) {
if (x > lobes)
return 0;
x *= Math.PI;
if (Math.abs(x) < 1e-16)
return 1;
var xx = x / lobes;
return Math.sin(x) * Math.sin(xx) / x / xx;
};
}
//...
How do I spool to a CSV formatted file using SQLPLUS?
I want to extract some queries to a CSV output format. Unfortunately, I can't use any fancy SQL client or any language to do it. I must use SQLPLUS.
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Forcing a WPF tooltip to stay on the screen
...adata(
typeof(DependencyObject), new FrameworkPropertyMetadata(Int32.MaxValue));
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How to avoid explicit 'self' in Python?
...embers which accidentally shadow non-members and thereby break code.
One extreme example: you can write a class without any knowledge of what base classes it might have, and always know whether you are accessing a member or not:
class A(some_function()):
def f(self):
self.member = 42
sel...
How to replace all occurrences of a character in string?
...orithm>
#include <string>
void some_func() {
std::string s = "example string";
std::replace( s.begin(), s.end(), 'x', 'y'); // replace all 'x' to 'y'
}
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Moment.js: Date between dates
...
In versions 2.9+ there is an isBetween function, but it's exclusive:
var compareDate = moment("15/02/2013", "DD/MM/YYYY");
var startDate = moment("12/01/2013", "DD/MM/YYYY");
var endDate = moment("15/01/2013", "DD/MM/YYYY");
// omitting the optional third parameter, 'units'
c...
How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...lity operator != returns true if
either operand is NaN. In
particular, x!=x is true if and only
if x is NaN, and (x<y) == !(x>=y) will
be false if x or y is NaN.
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Why do we need tuples in Python (or any immutable data type)?
...has changed since you last took a reference to it rears its ugly head).
Example of optimization issue:
$ python -mtimeit '["fee", "fie", "fo", "fum"]'
1000000 loops, best of 3: 0.432 usec per loop
$ python -mtimeit '("fee", "fie", "fo", "fum")'
10000000 loops, best of 3: 0.0563 usec per loop
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C# Lambda expressions: Why should I use them?
I have quickly read over the Microsoft Lambda Expression documentation.
15 Answers
1...
IE10 renders in IE7 mode. How to force Standards mode?
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Internet Explorer makes the assumption that most webpages were written to target earlier versions of IE and looks at the doctype, meta tags and HTML to determine the best compatibility mode (sometimes incorrectly). Even with a HTML5 do...