BootWiki教程网
源代码：
点击运行
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>BootWiki 教程网</title> </head> <body> <canvas height="150" id="myCanvas" style="border:1px solid #d3d3d3;" width="300"> 您的浏览器不支持 HTML5 canvas 标签。</canvas> <script> var c=document.getElementById("myCanvas"); var ctx=c.getContext("2d"); var gradient=ctx.createLinearGradient(0,0,170,0); gradient.addColorStop("0","magenta"); gradient.addColorStop("0.5","blue"); gradient.addColorStop("1.0","red"); //渐变填充 ctx.strokeStyle=gradient; ctx.lineWidth=5; ctx.strokeRect(20,20,150,100); </script> </body> </html>
运行结果