Hello, world!

矩形


        
          <rect x="x" y="y" rx="rx" ry="ry" />


        
          <circle r="r" cx="cx" cy="cy" />


        
          <ellipse cx="cx" cy="cy" rx="rx" ry="ry" />


        
          <line x1="x1" y1="y1" x2="x2" y2="y2" />


        
          <polyline points="x1 y1, x2 y2, x3 y3,..." />


        
          <polygon points="x1 y1, x2 y2, x3 y3,..." />


        
          <path d="..." />

d 参考：d 属性