pb10调用base64.dll，实现将图片转换成base64编码，将base64编码转换成图片函数声明functionlongGetFileEncode64(refstringfilename,refstringencode64)library"base64"aliasfor"GetFileEncode64;Ansi"functionlongBase64Decode(refblobouput,refstringinput,longinputlen)library"base64"aliasfor"Base64Decode;Ansi&quo