wkhtmltopdf：什么纸张尺寸有效？

res[\"A0\"] = QPrinter::A0;
res[\"A1\"] = QPrinter::A1;
res[\"A2\"] = QPrinter::A2;
res[\"A3\"] = QPrinter::A3;
res[\"A4\"] = QPrinter::A4;
res[\"A5\"] = QPrinter::A5;
res[\"A6\"] = QPrinter::A6;
res[\"A7\"] = QPrinter::A7;
res[\"A8\"] = QPrinter::A8;
res[\"A9\"] = QPrinter::A9;
res[\"B0\"] = QPrinter::B0;
res[\"B1\"] = QPrinter::B1;
res[\"B10\"] = QPrinter::B10;
res[\"B2\"] = QPrinter::B2;
res[\"B3\"] = QPrinter::B3;
res[\"B4\"] = QPrinter::B4;
res[\"B5\"] = QPrinter::B5;
res[\"B6\"] = QPrinter::B6;
res[\"B7\"] = QPrinter::B7;
res[\"B8\"] = QPrinter::B8;
res[\"B9\"] = QPrinter::B9;
res[\"C5E\"] = QPrinter::C5E;
res[\"Comm10E\"] = QPrinter::Comm10E;
res[\"DLE\"] = QPrinter::DLE;
res[\"Executive\"] = QPrinter::Executive;
res[\"Folio\"] = QPrinter::Folio;
res[\"Ledger\"] = QPrinter::Ledger;
res[\"Legal\"] = QPrinter::Legal;
res[\"Letter\"] = QPrinter::Letter;
res[\"Tabloid\"] = QPrinter::Tabloid;