判断远程图片是否存在[ASP代码]
| function CheckURL(byval A_strUrl) set xml(标准化越来越近了)HTTP = Server.CreateObject("Microsoft.xml(标准化越来越近了)HTTP") xml(标准化越来越近了)HTTP.open "HEAD",A_strUrl,false xml(标准化越来越近了)HTTP.send() CheckURL=(xml(标准化越来越近了)HTTP.status=200) set xml(标准化越来越近了)HTTP = nothing end function Dim imgurl imgurl="UploadFiles/2007829144940734.gif" if CheckURL(imgurl) then response.write "图片存在" else response.write "图片不存在" end if |
判断远程图片是否存在[js代码]
| { var oReq = new ActiveXObject("Microsoft.xml(标准化越来越近了)HTTP") oReq.open("Get","UploadFiles/2007829144941621.gif",false); oReq.send(); //alert(oReq.status) if(oReq.status==404) alert('不存在'); else alert("存在") } |
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