string与QString之间的转换

string与QString之间的转换
直接转换

string str;
QString qstr;
 
//从QString 到 std::string
str = ();
 
//从std::string 到QString
qstr = QString::fromStdString(str);

2.fromLocal8Bit(cstr.c_str())

std::string cstr;
QString qstring;
 
//从std::string 到QString
qstring = QString(QString::fromLocal8Bit(cstr.c_str()));
 
//从QString 到 std::string
cstr = string((const char *)qstring.toLocal8Bit());