[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fU1q4TTE3AHW06m8JnfZi2TgdULGRWkqk8VqoDUl8el8":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2026-05-19 09:55:04",377331083,[8,9,10,11],"9","17","25","10",{"courseId":13,"courseImg":14,"courseName":15},"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","有文法G:E→E*T|T T→T+i|i 句子 2+3*1+4 按该文法G归约,其值为",[18,29,38,41,47,52],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],377331079,[22,23,24,25],"直接短语","句柄","最左素短语","素短语","在算符优先分析中,用 来刻画可归约串","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],377331081,[33,34,35,36],"① 和 ③","③ 和 ④","② 和 ③","③","文法 G[S] : S→A∣S + A A→B∣A * B B→a∣ ( S ) 该文法句型 S + B * (S + A) 的直接短语是下列符号串中的 . ① (S + A ) ② S + A ③ B ④ B * (S + A)",{"answer":39,"createTime":5,"id":6,"options":40,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":42,"createTime":5,"id":43,"options":44,"question":45,"source":27,"type":46},[],377331086,[],"编译程序常用的语法分析方法有哪两种?简述其基本思想",4,{"answer":48,"createTime":5,"id":49,"options":50,"question":51,"source":27,"type":46},[],377331088,[],"有文法G[S]: S->V V->T | ViT T->F | T+F F->)V* | ( (1)给出(+(i( 的规范推导; (2)指出句型F+Fi( 的短语、直接短语、句柄、素短语和最左素短语. (3)G[S]是否是算符优先文法,若是,构造其优先关系",{"answer":53,"createTime":5,"id":54,"options":55,"question":56,"source":27,"type":46},[],377331090,[],"文法G[S]为: S→S;G|G G→G(T)|H H→a|(S) T→T+S|S (1) 构造G[S]的算符优先关系表,并判断G[S]是否为算符优先文法. (2) 给出句型a(T+S);H;(S)的语法树及短语、句柄、素短语和最左素短语"]