calculator.h

实现小心的CVM

#ifndef CALCULATOR_H
#define CALCULATOR_H
#include"store.h"
extern store * myStore;

enum type{NUM,ADD,SUB,MUL,EQU,VAR};
class elem
{
public:
	type elemType;
	int number;
	char * varName;
	elem * left;
	elem * right;
	elem();
	elem(char t);
	elem(int num);
	elem(char * ivar);
	void print();
};

//Tree函数将运算式作为一个字符串作为输入，构造出运算式的结构树
elem Tree(char * list);

//根据算式的结构树，运算出结果
int Calculate(elem t);

//输出算式中的数字
void getNum(elem t);

#endif