Computation theory 这个短语是什么意思;“绑定更强”;什么意思?
我知道这可能是一个新手问题,但我试图理解这句话(来自一篇关于使用EBNF的元语言的论文): 在此之前,它说:Computation theory 这个短语是什么意思;“绑定更强”;什么意思?,computation-theory,ebnf,Computation Theory,Ebnf,我知道这可能是一个新手问题,但我试图理解这句话(来自一篇关于使用EBNF的元语言的论文): 在此之前,它说: Conditions are: condition ::= condition (`&´ | `|´ ) condition | `!´ condition | relation relation ::= expression ( `=´ | `#´ | `<´ | `<=´ | `>´ | `>=´ ) expression 条件是: 条
Conditions are:
condition ::= condition (`&´ | `|´ ) condition | `!´ condition | relation
relation ::= expression ( `=´ | `#´ | `<´ | `<=´ | `>´ | `>=´ ) expression
条件是:
条件::=条件(`&´´´`´´´)条件``!条件关系
关系::=表达式(`='''.``'.'''.`=')表达式
谢谢这是指。换句话说,如果你有A&B | C
,你真的有(A&B)| C
。优先级较高/绑定更强的操作将首先求值
Conditions are:
condition ::= condition (`&´ | `|´ ) condition | `!´ condition | relation
relation ::= expression ( `=´ | `#´ | `<´ | `<=´ | `>´ | `>=´ ) expression