http://view.xdocin.com/xdoc?_xdoc=     ( https://?^^^^^^.txt)


https://view.officeapps.live.com/op/view.aspx?src=   （https://?^^^^^.xls)



TXT加载
https://runjs.work/projects/650878

预览
https://view.xdocin.com/mpimg-cn_5hz6mb.htm