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 | 
原文:http://www.cnblogs.com/god1924668503/p/5924485.html