大约有 16,000 项符合查询结果（耗时：0.0361秒） [XML]
What is the point of a private pure virtual function?
...c function, you could put some common things (such as logging, statistics, etc.) in the beginning and in the end of the function and then, "in the middle" to call this private virtual function, that will be different for the specific derived class. Something like:
class Base
{
// ..
public:
...
How can I rollback a github repository to a specific commit?
...push -u origin master
Add back the default branch and branch protection, etc.
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Will Dart support the use of existing JavaScript libraries?
...or the core libraries of dartc (dart:core, dart:dom, dart:html, dart:json, etc), which itself compiles to javascript.
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Matplotlib scatterplot; colour as a function of a third variable
...eral different grayscale colormaps pre-made (e.g. gray, gist_yarg, binary, etc).
import matplotlib.pyplot as plt
import numpy as np
# Generate data...
x = np.random.random(10)
y = np.random.random(10)
plt.scatter(x, y, c=y, s=500, cmap='gray')
plt.show()
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How to flatten tree via LINQ?
...s IEnumerable<T> items,
Func<T, IEnumerable<T>> getChildren)
{
var stack = new Stack<T>();
foreach(var item in items)
stack.Push(item);
while(stack.Count > 0)
{
var current = stack.Pop();
yield return current;
...
How do you run your own code alongside Tkinter's event loop?
...e python script once exiting the gui. Something like while app.is_alive(): etc
– m3nda
Dec 23 '19 at 12:59
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Emulate ggplot2 default color palette
...ically, @DidzisElferts shows how you can get all the colours, coordinates, etc that ggplot uses to build a plot you created. Very nice!
p <- ggplot(mpg,aes(x=class,fill=class)) + geom_bar()
ggplot_build(p)$data
[[1]]
fill y count x ndensity ncount density PANEL group ymin ymax xmin xmax
1...
Why does C++ compilation take so long?
...
You could tell from the same argumentation that C, Pascal etc. compilers are slow, which is not true on average. It has more to do with C++'s grammar and the huge state that a C++ compiler has to maintain.
– Sebastian Mach
Jun 10 '11 at 8:40
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Why can't C compilers rearrange struct members to eliminate alignment padding? [duplicate]
...constant folding, transformation of a switch statement into binary search, etc. Thus the benefits to be gained by allowing the compiler to optimize data structures appear to be less tangible than traditional compiler optimizations.
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How to check if DST (Daylight Saving Time) is in effect, and if so, the offset?
...eck between January and July (or February and August, March and September, etc.) because they are 6 month apart.
– kpull1
Apr 4 '19 at 6:39
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