符号与种别码对照表
| 单词符号 | # | begin | if | then | while | do | End | + | - | * | / | : | : = |
| 种别码 | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 13 | 14 | 15 | 16 | 17 | 18 |
| 单词符号 | < | <> | <= | > | >= | = | ; | ( | ) | Letter(letter|digit) | digit digit* |
| 种别码 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 |