1 I 2 II 3 III 4 IV 5 V 6 VI 7 VII 8 VIII 9 IX
10 X 11 XI ...19 XIX
20 XX 21 XXI ...
30 XXX 31 XXXI ...
40 XL 41 XLI ...
50 L ...
60 LX ...
...
90 XC ...
100 C ...
...
500 D
...
1000 M
罗马数字1-100怎样写～什么规律
1 I 2 II 3 III 4 IV 5 V 6 VI 7 VII 8 VIII 9 IX
10 X 11 XI ...19 XIX
20 XX 21 XXI ...
30 XXX 31 XXXI ...
40 XL 41 XLI ...
50 L ...
60 LX ...
...
90 XC ...
100 C ...
...
500 D
...
1000 M