原因与列8的突变一样，不过这次是因为多增加了前缀1。

This is for the same reason that 8 spiked, but in thiscase with the 1 prefix.

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

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