I have a simple function that go over a list of URLs, using GET to retrieve some information and update the DB (PostgresSQL) accordingly. The function works perfect. However, going over each URL one at a time talking too much time.
Using python, I'm able to do to following to parallel these tasks:
from multiprocessing import Pool
def updateDB(ip):
code goes here...
if __name__ == '__main__':
pool = Pool(processes=4) # process per core
pool.map(updateDB, ip)
This is working …
我正在尝试动画一个应该在div容器边框内随机移动的图像.我在这里找到了一些设置动画边框的解决方案,但是在图像停留在div中的地方没有.
我有一个例子 - 我需要红色方块在黄色div内移动,即使我向下滚动页面.
我怎样才能做到这一点？
$(document).ready(function() {
animateDiv();
});
function makeNewPosition($container) {
// Get viewport dimensions (remove the dimension of the div)
$container = ($container || $(window))
var h = $container.height() - 50;
var w = $container.width() - 50;
var nh = Math.floor(Math.random() * h);
var nw = Math.floor(Math.random() * w);
return [nh, nw];
}
function animateDiv() {
var $target = $('.a');
var newq = makeNewPosition($target.parent());
var oldq = $target.offset();
var speed = calcSpeed([oldq.top, oldq.left], newq);
$('.a').animate({
top: newq[0],
left: …