1:I 2:II 3:III 4:IV 5:V 6:VI 7:VII 8:VIII9:IX 10:X 11:XI 12:XII 13:XIII 14:XIV 15:XV16:XVI 17:XVII 18:XVIII 19:XIX 20:XX 25:XXV29:XXIX 30:XXX 40:XL 50:L 60:LX 70:LXX 80:LXXX90:XC 99:IC 100:C 200:CC 300 CCC 400:CD 500:D600:DC 700:DCC 800:DCCC 900:CM 1000:M 1100:MC 1400:MCD1600:MDC 1666:MDCLXVI 1788:MDCCLXXXVIII 1894:MDCCCXCIV1900:MCM 1976:MCMLXXVI 1989:MCMLXXXIX 2000:MM
vi罗马数字是几
