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[C] 语义分析器
说明: prog -> { decs stms } decs -> dec decs | dec -> type id ; type -> int | bool stms -> stm stms | stm -> id = exp ; | printi(exp) ; | printb(exp) ; exp -> intnum | true | false | id | (exp) | exp + exp | exp - exp | exp * exp | ex<weixin_41900921> 上传 | 大小:6kb