main.cpp

来自「VC6.0环境下的多项式计算」· C++ 代码 · 共 48 行

#include <iostream>
#include<cmath>
using namespace std ;

#include "stack.h"
#include "sufficalExpression.h"
#include "countExpression.h"
#include "changeExpression.h"

void main()

{
	
	stackList<char> stackList1 ;//
	stackList<float> stackList2 ;
	char input = NULL;
	bool result ;

	cout<<"请输入表达式 以 = 号结束"<<endl;
	//一边输入一边入栈
	while(input != '=')
	{
		cin>>input ;
		stackList1.push(input) ;
		if((input <= '9')&&(input>='0'))
			stackList1.setType(0);
		else
			stackList1.setType(1);
	}	
	//将刚输入的栈进行处理 
    changeStack(stackList1,stackList2) ;

	//将表达式转成后缀式 并判断是否成功
    result  = changeToSufficalExpression(stackList2);
	if(result)
	{
		//如果转换成功则进行运算
	   cout<<Account_Suffixal(stackList2);

	}
	else
	{ 
		cout<<"表达式存在错误";
	}

}