<!DOCTYPE html><html><body><canvas id="myCanvas" width="200" height="100"style="border:1px solid #d3d3d3;">Your browser does not support the HTML5 canvas tag.</canvas><script type="text/javascript">var c=document.getElementById("myCanvas");var ctx=c.getContext("2d");ctx.font="30px Arial";ctx.strokeText("Hello World",10,50);</script></body></html>希望本文所述对大家的web程序设计有所帮助。