File location：Src\qtbase\src\gui\text\Qzip.cpp

Problem function：fileData，The two functions of QZipWriter::addFile and QZipReader::fileData handle file encodings that are inconsistent

Normal special case: it is normal when the codec is set to utf8, and the result of fromLocal8Bit is consistent with fromUtf8

The suspected code, at line 935:

QByteArray QZipReader::fileData(const QString &fileName) const
{
d->scanFiles();
int i;
for (i = 0; i < d->fileHeaders.size(); ++i) {
if (QString::fromLocal8Bit(d->fileHeaders.at.file_name) == fileName)
break;
}
if (i == d->fileHeaders.size())
return QByteArray();

........

}

Modified code:

QByteArray QZipReader::fileData(const QString &fileName) const
{
d->scanFiles();
int i;
for (i = 0; i < d->fileHeaders.size(); ++i) {
FileHeader header=d->fileHeaders.at;
ushort general_purpose_bits = readUShort(header.h.general_purpose_bits);
const bool inUtf8 = (general_purpose_bits & Utf8Names) != 0;
QString file_name= inUtf8 ? QString::fromUtf8(header.file_name) : QString::fromLocal8Bit(header.file_name);
if (file_name == fileName)
break;
}
if (i == d->fileHeaders.size())
return QByteArray();

.......

}