用ASP+CSS实现随机背景.txt

以下是引用片段：Const IMGS_DIR = "/images"   '
设定图片文件夹的地址，随机显示该文件夹内任一张图片
Dim objFSO, objFolderObject, objFileCollection, objFile Dim intFileNumberToUse, intFileLooper Dim objImageFileToUse Dim strImageSrcText Set objFSO = Server.CreateObject("Scripting.FileSystemObject") Set objFolderObject = objFSO.GetFolder(Server.MapPath(IMGS_DIR)) Set objFSO = Nothing Set objFileCollection = objFolderObject.Files Set objFolderObject = Nothing Randomize() intFileNumberToUse = Int(objFileCollection.Count * Rnd) + 1 intFileLooper = 1 For Each objFile in objFileCollection If intFileLooper = intFileNumberToUse Then Set objImageFileToUse = objFile Exit For End If intFileLooper = intFileLooper + 1 Next Set objFileCollection = Nothing strImageSrcText = IMGS_DIR & objImageFileToUse.Name Set objImageFileToUse = Nothing CSS
以下是引用片段：
#pic{     width: 400px;     height: 300px;     background: url(<%= strImageSrcText %>) no-repeat;     margin: 2em auto; } 上面代码要加在header区，不能放在外部CSS文件里。