Qstring,string和char*转换

• string转char *
  • string temp ;
  • char * tempc = temp.c_str();
• string转QString
  • string temp ;
  • QString tempc = QString::fromStdString(temp);
• QString转String
  • QString temp;
  • String tempc = temp.toStdString();
• QString转char *
  • QString temp ;
  • char *p = temp.toStdString().data();
• char * 转QString
  • char  *p ;
  • QString temp = p;
• char * 转String
  • char *p;
  • String temp = p;