我希望swift代码具有与以下JavaAndroid代码相同的行为Java安卓byte[]binary={1,2,3};//adherestoRFC2045Stringoutput=Base64.encodeToString(binary,Base64.DEFAULT);//"AQID\n"android.util.Log.i("CHEOK",output);//"5"android.util.Log.i("CHEOK",""+output.length());swiftimportFoundationletbinary:[UInt8]=[1,2,3]letoutput=Data(bi