https://github.com/VincentGarreau/particles.js/
https://codepen.io/VincentGarreau/pen/pnlso
https://download.csdn.net/download/tang05709/10424998
// banner 线性特效
particlesJS.
load(
'banner_bg_effect',
'js/particles.json',
function() {
//console.log('callback - particles.js config loaded');
});
