大约有 45,000 项符合查询结果（耗时：0.0654秒） [XML]
What is the difference between ndarray and array in numpy?
...
232
numpy.array is just a convenience function to create an ndarray; it is not a class itself.
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Switching the order of block elements with CSS [duplicate]
...rient: vertical;
}
#blockA {
-webkit-box-ordinal-group: 2;
-moz-box-ordinal-group: 2;
box-ordinal-group: 2;
}
#blockB {
-webkit-box-ordinal-group: 3;
-moz-box-ordinal-group: 3;
box-ordinal-group: 3;
}
<div id="blo...
Convert SVG to PNG in Python
...isk:
import cairo
import rsvg
img = cairo.ImageSurface(cairo.FORMAT_ARGB32, 640,480)
ctx = cairo.Context(img)
## handle = rsvg.Handle(<svg filename>)
# or, for in memory SVG data:
handle= rsvg.Handle(None, str(<svg data>))
handle.render_cairo(ctx)
img.write_to_png("svg.png")
Upda...
How to implement a binary tree?
...(node.v) + ' ')
self._printTree(node.r)
# 3
# 0 4
# 2 8
tree = Tree()
tree.add(3)
tree.add(4)
tree.add(0)
tree.add(8)
tree.add(2)
tree.printTree()
print(tree.find(3).v)
print(tree.find(10))
tree.deleteTree()
tree.printTree()
...
How to disassemble one single function using objdump?
...now too.
– Tom Tromey
Oct 18 '14 at 2:33
5
gdb /bin/ls -batch -ex 'disassemble main' works as wel...
Which ORM should I use for Node.js and MySQL? [closed]
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102
May I suggest Node ORM?
https://github.com/dresende/node-orm2
There's documentation on the Rea...
Python try…except comma vs 'as' in except
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288
The definitive document is PEP-3110: Catching Exceptions
Summary:
In Python 3.x, using as i...
How to create multidimensional array
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321
var numeric = [
['input1','input2'],
['input3','input4']
];
numeric[0][0] == 'input1';
...
Standard alternative to GCC's ##__VA_ARGS__ trick?
...clang and icc have adopted this GCC extension, but MSVC has not.
Back in 2001 I wrote up the GCC extension for standardization (and the related extension that lets you use a name other than __VA_ARGS__ for the rest-parameter) in document N976, but that received no response whatsoever from the comm...
How to replace part of string by position?
...ar aStringBuilder = new StringBuilder(theString);
aStringBuilder.Remove(3, 2);
aStringBuilder.Insert(3, "ZX");
theString = aStringBuilder.ToString();
An alternative is to use String.Substring, but I think the StringBuilder code gets more readable.
...