QString如何比较两个汉字的字符串？

[taianmonkey]

int n = QString::localeAwareCompare(strName, "欧洲");
一直返回不了0,另外，系统的编码用的是UTF8
QTextCodec::setCodecForTr(QTextCodec::codecForName("UTF-8"));

[haltwang]

建议把strName打印出来看看，是不是strName这里出了问题。 另外在文档里找的： Compares s1 with s2 and returns an integer less than, equal to, or greater than zero if s1 is less than, equal to, or greater than s2. If cs is Qt::CaseSensitive, the comparison is case sensitive; otherwise the comparison is case insensitive. Case sensitive comparison is based exclusively on the numeric Unicode values of the characters and is very fast, but is not what a human would expect. Consider sorting user-visible strings with localeAwareCompare(). int x = QString::compare("aUtO", "AuTo", Qt::CaseInsensitive); // x == 0 int y = QString::compare("auto", "Car", Qt::CaseSensitive); // y > 0 int z = QString::compare("auto", "Car", Qt::CaseInsensitive); // z < 0

[taianmonkey]

strName没有任何问题 我试过了，不行

[haltwang]

那应该是编码问题。 我觉得可能是这样的： "欧洲"是存在代码区的，所以你用setcodeC是没用的。你得在你的编译器里该编辑框的编码格式

[haltwang]

还可以这样 你把"欧洲"换成： QString("欧洲") 这样应该就可以了

[乔巴好萌]

int n = QString::localeAwareCompare(strName, QObject::tr("欧洲"));