Once the marker is added to the map as an overlay, the drawLine function is called.

将这个标记作为叠加层添加到地图上之后，调用drawLine函数。

youdao

Once the marker is added to the map as an overlay, the drawLine function is called.

将这个标记作为叠加层添加到地图上之后，调用drawLine函数。

youdao