KdeQt Chinese display problems

KdeQt-general Linux technology-Linux programming and kernel information. In QT, QTextCodec can be used to convert the character string encoding. This facilitates the development of Chinese software in QT. However, this method does not comply with international/local standards:

CODE: char * string = "Hello, world! "; QTextCodec * codec = QTextCodec: codecForName ("GBK "); // QTextCodec * codec = QTextCodec: codecForName ("Big5 "); QString strText = codec-> toUnicode (string ); QLabel * label = new QLabel (strText );