大约有 7,500 项符合查询结果（耗时：0.0227秒） [XML]
Reference: What is variable scope, which variables are accessible from where and what are “undefined
...
static $counter = 0;
$counter += sqrt($num);//imagine we need to take root of our sheep each time
echo "$counter sheep jumped over fence";
}
Result:
2 sheep jumped over fence
5 sheep jumped over fence
9 sheep jumped over fence
Static function is kinda 'shared' between methods of objects ...
How are 3D games so efficient? [closed]
... agree, to get a better comparison you should disable vsync. However, the root of the issue still stands. 30% for the teapot vs 50% cpu usage for the game is a smaller difference than one might normally expect. But I remember in the early days when environment mapping just started to become popul...
Apache and Node.js on the Same Server
...y_http_module modules/mod_proxy_http.so
Apache VirtualHost settings (doc root for PHP is under Apache and SSL with Certbot, while node.js/socket.io site runs on port 3000 - and uses SSL cert from Apache)
Also notice the node.js site uses the proxy for the folder /nodejs, socket.io, and ws (websock...
How to overlay one div over another div
...e used the verbose grid properties to make it as clear as possible.
:root {
--columns: 12;
}
/*
* Setup the wrapper as a Grid element, with 12 columns, 1 row
*/
.wrapper {
display: grid;
grid-template-columns: repeat(var(--columns), 1fr);
grid-template-rows: 40px;
}
/*
...
What is an 'endpoint' in Flask?
...
Hows about url_for for root? I catched error Could not build url for endpoint ''
– TomSawyer
Sep 19 '17 at 8:28
...
Is floating-point math consistent in C#? Can it be?
...t number, to help implement complex functions such as sine, cosine, square root, and so on. If the lookup table is less granular than the fixed point number, it is suggested to round the input by adding one half of the granularity of the lookup table to the input:
// Assume each number has a 12 bit...
How to delete images from a private docker registry?
...arbage-collect /etc/docker/registry/config.yml
Here is my config.yml
root@c695814325f4:/etc# cat /etc/docker/registry/config.yml
version: 0.1
log:
fields:
service: registry
storage:
cache:
blobdescriptor: inmemory
filesystem:
rootdirectory: /var/lib/registry
del...
AngularJS- Login and Authentication in each route and controller
...our main controller you watch if the state of the user change.
app.run(['$rootScope', '$location', 'Auth', function ($rootScope, $location, Auth) {
$rootScope.$on('$routeChangeStart', function (event) {
if (!Auth.isLoggedIn()) {
console.log('DENY');
event.preven...
GUI not working after rewriting to MVC
...–View–Controller pattern is no panacea, but it offers some advantages. Rooted in MVC, the Swing separable model architecture is discussed in A Swing Architecture Overview. Based on this outline, the following example shows an MVC implementation of a much simpler game that illustrates similar pri...
How do I remove the passphrase for the SSH key without having to create a new key?
...parent. If you're logged in, it is available, when you are logged out your root user cannot use it. Removing the passphrase is a bad idea because anyone with the file can use it.
ssh-keygen -K
Add this to ~/.ssh/config
UseKeychain yes
...