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"