gt4io初期化 call HistoryCreate( fname, "gms_test", "gms_shallow1d", & "masuo", (/'x', 't'/), (/size_x(u),0/), & (/"x-coordinate", "time "/), (/"m","s"/), & 0.0, real( it_dump*dt ), history=hst ) call HistoryPut('x', pos_x(u), history=hst ) call HistoryAddVariable( varname = 'u', dims=(/'x','t'/), & longname='X-velocity', units='m/s', xtype='double', & history=hst)