标签：c ext a get art html
Doughnut Chart
var c=document.getElementById("canvas");var ctx=c.getContext("2d");ctx.font="50px sans-serif";ctx.fillText("75%",40,92);
canvas,布布扣,bubuko.com
canvas
原文地址：http://www.cnblogs.com/lexus/p/3737648.html
