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深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术
...t%02x\t%o\t%c", j,j,j,j, j+31,j+31,j+31,j+31);
std::cout << p << std::endl;
}
（整形，十六进制，八进制，字符型）
前面0-127个是ASCII标准的编码，后128-255是拓展ASCII编码，在日文操作系统默认编码为shift-jis的环境中日文的半角片假名由拓展...
How to iterate over values of an Enum having flags?
...here's one way you can get them:
[Flags]
enum Items
{
None = 0x0,
Foo = 0x1,
Bar = 0x2,
Baz = 0x4,
Boo = 0x6,
}
var value = Items.Foo | Items.Bar;
var values = value.ToString()
.Split(new[] { ", " }, StringSplitOptions.None)
.Select(v =&g...
Serving static files with Sinatra
I have one page website only using HTML, CSS and JavaScript. I want to deploy the app to Heroku, but I cannot find a way to do it. I am now trying to make the app working with Sinatra.
...
What is the max size of localStorage values?
... function canStore(strLen) {
try {
delete localStorage.foo;
localStorage.foo = Array(strLen + 1).join('A');
return true;
} catch (ex) {
return false;
}
}
function storageMaxBetween(low, high) {
return canStore(...
What's the advantage of a Java enum versus a class with public static final fields?
...ion details (the name of the parameter). I can make an interface interface Foo { public void bar(String baz); }. Someone makes a class which invokes bar: someFoo.bar(baz = "hello");. I change the signature of Foo::bar to public void bar(String foobar). Now the person who called someFoo will need to ...
Cannot find or open the PDB file in Visual Studio C++ 2010
I use Visual Studio 2010 C++ and my project builds without errors but when I run it I get this. I am on Windows XP.
7 Answe...
What is the HTML tabindex attribute?
...ess of where it is in relation to the rest of the code (it could be in the footer, content area, where-ever) if there is a defined tabindex then the tab order will start at the element which is explicitly assigned the lowest tabindex value above 0. It will then cycle through the elements defined an...
How can I get name of element with jQuery?
...
Play around with this jsFiddle example:
HTML:
<p id="foo" name="bar">Hello, world!</p>
jQuery:
$(function() {
var name = $('#foo').attr('name');
alert(name);
console.log(name);
});
This uses jQuery's .attr() method to get value for the first element i...
How to increase the vertical split window size in Vim
:vsplit (short form: :vs ) split the Vim viewport vertically. :30vs splits the viewport, making the new window 30 characters wide. Once this 30 char window is created, how would one change it's size to 31 or 29?
...
Why does Java's hashCode() in String use 31 as a multiplier?
...erent meaning. Yes, that implies that Map.of(42, 42).hashCode() or Map.of("foo", "foo", "bar", "bar").hashCode(), etc, are predictably zero. So don’t use maps as keys for other maps…
– Holger
Aug 30 '19 at 9:12
...