$fine_display_name
https://help.fanruan.com/finereport/doc-view-4986.html
https://help.fanruan.com/finebi/doc-view-399.html
你指的是水印?
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mid($fine_display_name,find("(",$fine_display_name)+1,find(")",$fine_display_name)-find("(",$fine_display_name)-1)