| 废话不多,复制下面的代码到自己创建的index.html文件,网页打开就能看见了 [简单的弹幕,只为参考学习。实际需求根据项目要求开发]
 图片效果
 
 代码
 
 
 
 
 
 
 
 
 <script>
 var c=document.getElementById("canvas");
 var ctx=c.getContext("2d");
 c.width=800;
 c.height=400;
 var fonts=new Array();
 var font=new Array();
 font['font']='20px Georgia';
 font['fillStyle']='#FF0000';
 font['text']='test11111';
 font['x']=-parseInt(ctx.measureText(font['text']).width);
 font['y']=40;
 fonts.push(font);
 var font=new Array();
 font['font']='12px Georgia';
 font['fillStyle']='orange';
 font['text']='';
 font['x']=-parseInt(ctx.measureText(font['text']).width);
 font['y']=120;
 fonts.push(font);
 var font=new Array();
 font['font']='30px Georgia';
 font['fillStyle']='green';
 font['text']='哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈哈';
 font['x']=-parseInt(ctx.measureText(font['text']).width);
 font['y']=300;
 fonts.push(font);
 var font=new Array();
 font['font']='10px Georgia';
 font['fillStyle']='#602eba';
 font['text']='(^o^)/~';
 font['x']=-parseInt(ctx.measureText(font['text']).width);
 font['y']=200;
 fonts.push(font);
 var font=new Array();
 font['font']='15px Georgia';
 font['fillStyle']='#FF0000';
 font['text']='test222';
 font['x']=-parseInt(ctx.measureText(font['text']).width);
 font['y']=60;
 fonts.push(font);
 var times=0;
 window.setInterval(function(){
 c.width=800;
 c.height=400;
 
 for(var i=0;i
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