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MFC CString::Format()函数详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...式命令）
d输出带符号十进制数
o输出无符号八进制数
x输出无符号十六进制数
u输出无符号数
c输出单个字符
s输出一串字符
f输出实数（6位小数）
e以指数形式输出实数
g选用f与e格式中输出宽度较小的格式，不输出0 ...
Passing a 2D array to a C++ function
...
Fixed Size
1. Pass by reference
template <size_t rows, size_t cols>
void process_2d_array_template(int (&array)[rows][cols])
{
std::cout << __func__ << std::endl;
for (size_t i = 0; i < rows; ++...
What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
...345 or 1.2.3 (Build 12345AB). This is shown in the About window for Mac OS X apps for example and is often more a "Build Number" than a "Version Number".
Bundle Version String (CFBundleShortVersionString)
This value is used as the "real" version number. This must be the same string as used for the v...
Check if string contains only digits
...wwwald: Some languages implement it differently, but in JavaScript, \d is exactly equivalent to [0-9].
– Ry-♦
Jul 3 '17 at 7:53
...
Java URL encoding of query string parameters
...character =.
String q = "random word £500 bank $";
String url = "https://example.com?q=" + URLEncoder.encode(q, StandardCharsets.UTF_8);
When you're still not on Java 10 or newer, then use StandardCharsets.UTF_8.toString() as charset argument, or when you're still not on Java 7 or newer, then use ...
Why does document.querySelectorAll return a StaticNodeList rather than a real Array?
...at I can't just do document.querySelectorAll(...).map(...) even in Firefox 3.6, and I still can't find an answer, so I thought I'd cross-post on SO the question from this blog:
...
Numpy how to iterate over columns of array?
Suppose I have and m x n array. I want to pass each column of this array to a function to perform some operation on the entire column. How do I iterate over the columns of the array?
...
vertical & horizontal lines in matplotlib
...rtical lines at specified limits. I would like to bound the data by this box. However, the sides do not seem to comply with my instructions. Why is this?
...
design a stack such that getMinimum( ) should be O(1)
... solution which doesn't do that though, without wrecking the runtime complexity somewhere (e.g. making push/pop O(n)). Note that this doesn't change the complexity of the space required, e.g. if you've got a stack with O(n) space requirements, this will still be O(n) just with a different constant f...
Practical uses for AtomicInteger
...tion (compareAndSet()) to implement non-blocking algorithms.
Here is an example of non-blocking random number generator from Brian Göetz's Java Concurrency In Practice:
public class AtomicPseudoRandom extends PseudoRandom {
private AtomicInteger seed;
AtomicPseudoRandom(int seed) {
...