QString convert to QByteArray

[schunyeh]

Hi,
Are there any way to convert a QString as following data to QByteArray?
I try to code as following, but it cannot work.

QString test_raw1 = "0x01";
QString test_raw2 = "0x8a";
QByteArray tmp_byte;
tmp_byte.resize(2);
tmp_byte[0].insert(0,test_raw1);
tmp_byte[1].insert(1,test_raw1);

QString test_raw1 = "0x01";
QString test_raw2 = "0x8a";
QByteArray tmp_byte;
tmp_byte.resize(2);
tmp_byte[0].insert(0,test_raw1);
tmp_byte[1].insert(1,test_raw1);

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I would like to have a result as following.

QByteArray tmp_byte;
tmp_byte.resize(2);
tmp_byte[0]=0x01;
tmp_byte[1]=0x8a;

QByteArray tmp_byte;
tmp_byte.resize(2);
tmp_byte[0]=0x01;
tmp_byte[1]=0x8a;

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Could anyone please help me.
Thank you very very much.