SAX
Simple API for XML
Tag
clipPath
裁剪框，将定义的 path 以外的元素裁切掉
Path
- M = move to
- L = line to
- H = horizontal line to
- V = vertical line to
- C = curve to
- S = smooth curve to
- Q = quadratic Bézier curve
- T = smooth quadratic Bézier curve to
- A = elliptical Arc
- Z = close path
大写：绝对路径 小写：相对路径
实用工具：svgpatheditor