SVG圆形<circle> 标签

 1 <?xml version="1.0" standalone="no"?>
 2 <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" 
 3 "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
 4 
 5 <svg width="100%" height="100%" version="1.1"
 6 xmlns="http://www.w3.org/2000/svg">
 7 
 8 <circle cx="100" cy="50" r="40" stroke="black"
 9 stroke-width="2" fill="red"/>
10 
11 </svg>