可以在plot界面看到图，但图片没有办法用ggsave或eoffice的topptx函数保存，报错情况如下：
Error in open.connection(con, "rb") : cannot open the connection
In addition: Warning messages:
1: In for (i in seq_along(old_new_env_pairs)) { :
  closing unused connection 3 (C:\Users\小新air\AppData\Local\Temp\RtmpWclNEj\file86a045f22f79/raster-rId000002.png)
2: In open.connection(con, "rb") :
  cannot open file 'C:\Users\小新air\AppData\Local\Temp\RtmpWclNEj\file86a03101802/raster-rId000002.png': No such file or directory