大约有 3,000 项符合查询结果（耗时：0.0132秒） [XML]
Can I draw rectangle in XML?
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Yes you can and here is one I made earlier:
<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:id="@+id/listview_background_shape">
<stroke android:width="2dp" android:color="#ff207d94" />
<paddin...
XSLT equivalent for JSON [closed]
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Link only answer
– Jean-François Fabre♦
Aug 4 '19 at 12:11
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What is more efficient? Using pow to square or just multiply it with itself?
...lliseconds>(std::chrono::high_resolution_clock::now() - from).count() * 1.0e-6;
}
private:
std::chrono::high_resolution_clock::time_point from;
};
int main (int argc, char* argv[])
{
double total;
Timer timer;
total = 0.0;
timer.start();
for (double i = 0.0; i < 1.0; i...
Get generic type of java.util.List
...ed Jan 31 '17 at 21:45
Jean-François Savard
19.1k55 gold badges4040 silver badges6666 bronze badges
answered Dec 21 '09 at 21:18
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Why do we need private subnet in VPC?
...outbound access to the Internet. This is where Network Address Translation² and a NAT instance come in.
The machines on a private subnet can access the Internet because the default route on a private subnet is not the VPC "Internet Gateway" object -- it is an EC2 instance configured as a NAT in...
Random / noise functions for GLSL
...es yields 0.0, all ones yields the next smallest representable value below 1.0.
float floatConstruct( uint m ) {
const uint ieeeMantissa = 0x007FFFFFu; // binary32 mantissa bitmask
const uint ieeeOne = 0x3F800000u; // 1.0 in IEEE binary32
m &= ieeeMantissa; ...
Why doesn't C have unsigned floats?
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C99 supports complex numbers, and a type generic form of sqrt, so sqrt( 1.0 * I) will be negative.
The commentors highlighted a slight gloss above, in that I was referring to the type-generic sqrt macro rather than the function, and it will return a scalar floating point value by truncation of...
C# short/long/int literal format?
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var d = 1.0d; // double
var d0 = 1.0; // double
var d1 = 1e+3; // double
var d2 = 1e-3; // double
var f = 1.0f; // float
var m = 1.0m; // decimal
var i = 1; // int
var ui = 1U; // uint
var ul = 1UL; // ulong
var l ...
String formatting: % vs. .format vs. string literal
...ed Feb 13 '17 at 15:51
Jean-François Corbett
33.6k2525 gold badges124124 silver badges172172 bronze badges
answered Aug 1 '11 at 3:01
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What's the equivalent of Java's Thread.sleep() in Objective-C/Cocoa?
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Sleeping for one second in Objective C:
[NSThread sleepForTimeInterval:1.0f];
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