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<!DOCTYPE HEML PUBLIC><html> <head> <meta charset="utf-8"> <title> From ZXW-NUDT </title> <style> body{text-align:center} html, body { width: 100%; height: 100%; margin: 0; padding: 0; border: 0; } div { margin: 0; padding: 0; border: 0; } .nav { position: absolute; top: 0; left: 0; width: 100%; height: 27px; background-color: white; color: black; text-align: center; line-height: 25px; } a { color: black; text-decoration: none; border-bottom: 1px dashed black; } a:hover { border-bottom: 1px solid red; } .previous { float: left; margin-left: 10px; } .next { float: right; margin-right: 10px; } .green { color: green; } .red { color: red; } textarea { width: 100%; height: 100%; border: 0; padding: 0; margin: 0; padding-bottom: 20px; } .block-outer { float: left; width: 22%; height: 100%; padding: 5px; border-left: 1px solid black; margin: 30px 3px 3px 3px; } .block-inner { height: 68%; } .one { border: 0; } </style> </head><body marginwidth="0" marginheight="0"> <canvas id="c" height="356" width="446"> <script> var collapsed = true; function toggle() { var fs = top.document.getElementsByTagName('frameset')[0]; var f = fs.getElementsByTagName('frame'); if (collapsed) { fs.rows = '250px,*'; fs.noResize = false; f[0].noResize = false; f[1].noResize = false; } else { fs.rows = '30px,*'; fs.noResize = true; f[0].noResize = true; f[1].noResize = true; } collapsed = !collapsed; } </script> <script> var b = document.body; var c = document.getElementsByTagName('canvas')[0]; var a = c.getContext('2d'); document.body.clientWidth; </script> <script> M=Math; Q=M.random;J=[]; U=16; T=M.sin; E=M.sqrt; for(O=k=0;x=z=j=i=k<200;) with(M[k]=k?c.cloneNode(0):c) { width=height=k?32:W=446; with(getContext('2d')) if(k>10|!k) for( font='60px Impact', V='rgba(';I=i*U,fillStyle=k?k==13?V+'205,205,215,.15)': V+(147+I)+','+(k%2?128+I:0)+','+I+',.5)':'#cca',i<7;) beginPath(fill(arc(U-i/3,24-i/2,k==13?4-(i++)/2:8-i++,0,M.PI*2,1))); else for(; x=T(i), y=Q()*2-1, D=x*x+y*y, B=E(D-x/.9-1.5*y+1), R=67*(B+1)*(L=k/9+.8)>>1, i++<W; ) if(D<1) beginPath(strokeStyle=V+R+','+(R+B*L>>0)+',40,.1)'), moveTo(U+x*8,U+y*8), lineTo(U+x*U,U+y*U), stroke(); for( y=H=k+E(k++)*25, R=Q()*W; P=3,j<H;) J[O++]=[ x+=T(R)*P+Q()*6-3,y+=Q()*U-8, z+=T(R-11)*P+Q()*6-3, j/H*20+((j+=U)>H&Q()>.8?Q(P=9)*4:0)>>1] } setInterval(function G(m,l) { A=T(D-11); if(l) return( m[2]-l[2])*A+(l[0]-m[0])*T(D); a.clearRect(0,0,W,W); J.sort(G); for( i=0; L=J[i++]; a.drawImage(M[L[3]+1],207+L[0]*A+L[2]*T(D)>>0,L[1]>>1)) { if(i==2e3) a.fillText ('Happy Christmas!',U,345); if(!(i%7)) a.drawImage(M[13], ((157*(i*i)+T(D*5+i*i)*5)%W)>>0, ((113*i+(D*i)/60)%(290+i/99))>>0); } D+=.02 },1) </script></body></html>关于加上背景音乐的事情 假设和本html文件有个文件夹名字是music，文件夹下有个音频文件是music.mp3。那么代码应该为： <audio src="music/music.mp3" autoplay="autoplay" loop="loop"></audio> - src是地址
- autoplay默认播放
- loop默认循环
更换背景应该是（反正我没试过）： <div class="image"><img src="images.jpg" alt="" /></div><div class="content"> 到此这篇关于HTML中用JS实现旋转的圣诞树的文章就介绍到这了。希望对大家的学习有所帮助，也希望大家多多支持51zixue.net。
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