text: if(document.getElementById('evanyou')){let c=document.getElementById('evanyou'),x=c.getContext('2d'),pr=window.devicePixelRatio||1,w=window.innerWidth,h=window.innerHeight,f=90,q,m=Math,r=0,u=m.PI*2,v=m.cos,z=m.random;c.width=w*pr;c.height=h*pr;x.scale(pr, pr);x.globalAlpha=0.6;function evanyou(){x.clearRect(0,0,w,h);q=[{x:0,y:h*.7+f},{x:0,y:h*.7-f}];while(q[1].x<w+f)d(q[0],q[1]);};function d(i,j){x.beginPath();x.moveTo(i.x,i.y);x.lineTo(j.x,j.y);let k=j.x+(z()*2-0.25)*f,n=y(j.y);x.lineTo(k,n);x.closePath();r-=u/-50;x.fillStyle = '#' + (v(r) * 127 + 128 << 16 | v(r + u / 3)*127+128<<8|v(r+u/3*2)*127+128).toString(16);x.fill();q[0]=q[1];q[1]={x:k,y:n};};function y(p){let t=p+(z()*2-1.1)*f;return (t>h||t<0)?y(p):t;};document.onclick = evanyou;document.ontouchstart = evanyou;setInterval(function (){evanyou();},2000);/*设置定时2秒运行*/}