VB 利用API下载网络资源

VB 利用API下载网络资源的VB源码 Public Declare Function URLDownloadToFile Lib "urlmon" Alias "URLDownloadToFileA" (ByVal pCaller As Long, ByVal szURL As String, ByVal szFileName As String, ByVal dwReserved As Long, ByVal lpfnCB As Long) As Long '清除缓存 Public Declare Function DeleteUrlCacheEntry Lib "wininet" Al