加密算法我是用的这个http://blog.csdn.net/markely/article/details/8203928
QFile f("E:\\c++\\Qt4Code\\testAES\\debug\\key.txt");
//写入
f.open(QIODevice::WriteOnly);
QTextStream t(&f);
t << miwen;
f.close();
//读出
char jiemi_txt[1024];
QFile ff("E:\\c++\\Qt4Code\\testAES\\debug\\key.txt");
f.open(QIODevice::ReadOnly);
QTextStream tt(&f);
QString b=tt.read(300) ;
qDebug() << "================================\n\r";
aes->OnAesUncrypt((LPVOID)b.data(), (DWORD)sizeof(b.data()),(LPVOID)jiemi_txt); //进行解密
qDebug() << "duchu:" <<jiemi_txt;
ff.close();
