因此，每个点之前应该加上控制字符L 作为前缀。第三个控制字符 Z关闭一条路径，这对于（多）多边形是必需的。

Therefore, each point should be prefixed with the control character L. The third control character Z closes a path, which is needed for (multi-)polygons.

youdao

因此，每个点之前应该加上控制字符L 作为前缀。第三个控制字符 Z关闭一条路径，这对于（多）多边形是必需的。

Therefore, each point should be prefixed with the control character L. The third control character Z closes a path, which is needed for (multi-)polygons.

youdao