lua luacom 操作excel 插入图片问题 sheet.shapes.addpicture

-- local oexcel = excel:Creat(1)
-- local sheet = oexcel.Sheets(1)
-- local r = sheet:Range("E6");

-- r:Select()
-- sheet.shapes.addpicture("E:\小包包\Source\include\flower.jpg",nil,nil,r.Left,r.Top,-1,-1)
路径已经是绝对的啦,以下是报错,请问怎么插入图片

C:\Program Files (x86)\Lua\5.1\lua.exe: COM exception:(.\src\library\tLuaCOM.cpp,394):鏈壘鍒版寚瀹氭枃浠躲€?
stack traceback:
[C]: in function 'addpicture'
excel.lua:221: in main chunk
[C]: ?

https://www.baidu.com/link?url=cILeg6AlS4IZgEGCrnd4CcgR5EVFbPEPYrasq4ep5obAt3K3xp0JRu0HQXMxE47HpeSLe4bWZ2hWtho0KQJTbq&wd=&eqid=eb50e2e30008c4920000000558d5375b

1.检查下函数参数类型及数值是否正确。
2.用全英文的路径名试试