(1)QByteArray转String-Base64编码
qfilef (/home/yubo/workspace/post data/man.jpg ); q字节阵列; if (f.open (qiodevice :3360就绪) ) { array=f.readAll; f.close (; }array.toBase64 (;(2)String-Base64编码转QByteArray
qbytearraydata=q bytearray :3360 from base 64 (phasgvsbg8/PC9wpg=(,q bytearray :3360 base64 encoding );(3)QString编码转QByteArray
qtringdata (屿数据库); QByteArray bytes=data.toUtf8 (; //QString是QByteArray方法1qstringdata('Yudabo ); QByteArray bytes=data.toLatin1 (; //qstringqbytearray方法2http://www.Sina.com/http://www.Sina.com /
qbytearraybytes(Helloworld ); QString data=bytes; //QByteArray是QString方法1qbytearraybytes(Helloworld ); Qstring数据; string.prepend(bytes; //q从字节到QString方法2