In line 109, the polyline element is started, and an initial point is drawn at the origin of the axis.
第 109 行是 polyline 元素的起点,它与坐标轴的原点重合。
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JSR-109 defines a standard representation for XML schema type definition and element declaration in the JAX-RPC mapping file. Both of them are mapped to the java-xml-type-mapping element.