动态效果请点此下载文件并使用Chrome或者FireFox浏览器观看。
图例：
代码：
<!DOCTYPE html> <html lang="utf-8"> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <head> <title>走进的女孩 19.3.3 15:47 horn19782016@163.com</title> </head> <body onload="draw()"> <canvas id="myCanvus" width="192px" height="192px" style="border:1px dashed black;"> 出现文字表示你的浏览器不支持HTML5 </canvas> </body> </html> <script type="text/javascript"> <!-- var ctx;// 绘图环境 var cds;// 从大图中取小图的坐标数组 var img;// 大图 function draw(){ var canvas=document.getElementById('myCanvus'); canvas.width=192; canvas.height=192; ctx=canvas.getContext('2d'); // 图块坐标 cds=[ {'pos':'pic/1.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/2.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/3.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/4.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/5.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/6.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/7.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/8.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/9.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/10.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/11.gif','x':'0', 'y':'0','width':'192','height':'192'}, {'pos':'pic/12.gif','x':'0', 'y':'0','width':'192','height':'192'}, ]; animate(); }; var index=0; var i=0; function animate(){ index++; if(index>108){ index=0; } i=index % 12; img=new Image(); img.src=cds[i].pos; // 截取一块图贴上 ctx.drawImage(img,cds[i].x,cds[i].y,cds[i].width,cds[i].height,0,0,cds[i].width,cds[i].height); setTimeout( function(){ window.requestAnimationFrame(animate); /// 让浏览器自行决定帧速率 }, 0.10 * 1000 );// 延时执行 } //--> </script>
2019年3月3日16点22分