1 .cad    web  AppEmbed    rtsp   DLL    index
2.打开网络,默认保存上传 {"emit":"open","Obj":"cad","AppType":1,"AppFollow":31,"src":[["https://cdn.jsdelivr.net/gh/appemit/AppemitWeb@master/docs/demo/file/cad2.dwgtmp","cad2.dwg"]],"pos":1,"par0":{"objName":"autocad","embed":-1,"AppMethod":"POST","HttpPost":{"URL":"http://eu.httpbin.org/post","valid":1,"fileName":"newcad2.dwg" },"show_UpdateTool":true}}
close : {"emit":"close","Obj":"cad","AppId":1,"par0":{"AppMethod":"POST"}} or {"emit":"closeAll","Obj":"cad","par0":{"AppMethod":"POST"}}