程序级结果学习资料学习资料

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1、#include#includeusingnamespacestd;constintstacksize=32;classstack{public:initstack();voidpush(char);charpop();boolisempty();voidshowstack();~stack();private:inttop;intbase;char*istack;};stack::initstack(){istack=newchar[stacksize];top=base=0;}voidstack::push(chartok

2、en){if(top-base>=stacksize){cout<<"Overflow!"<

3、out<

4、6]={'i','+','*','(',')','#'};//定义终结符boolisterminal(charc){for(inti=0;i<5;i++)if(c==nt[i])return0;return1;}voidderivation_E(){s.push('P');s.push('T');}voidderivation_P(){s.push('P');s.push('T');s.push('+');}voidderivation_T(){s.push('Q');s.push('F');}voidderivation_Q(){s.push('Q');s.p

5、ush('F');s.push('*');}voidderivation_F(){s.push('i');}voidderivation_F1(){s.push(')');s.push('E');s.push('(');}voidLL1(stringstr){intl=str.length();intstep=0,j=0,k=0,n=0;charch,ter;init();cout<<"步骤"<<"t栈"<<"t输入缓冲区"<<"t输出"<

6、

7、str<

8、ndl;break;ca