这代码用webstore有圆，怎么用sublime就没有<!DOCTYPE html><html><head><meta charset="UTF-8"><title>时钟</title></head><style type="text/css">div{text-align: center;margin-top: 250px: }clock{border:1px solid #ccc;}</style><body><div><canvas id="clock" height="200px" width="200px"></canvas></div><script type="text/javascript" >var dom = document.getElementById('clock')var ctx = dom.getContext('2d');var height = ctx.canvas.height;var width = ctx.canvas.width;var r = width/2;function draw(){ctx.translate(r,r);ctx.beginPath();ctx.lineWidth = 10;ctx.arc(0,0,r,0,2*Math.PI,false);ctx.stroke();}draw();</script></body></html>
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