栈的应用:中缀表达式转化为后缀表达式(逆波兰表达式)

#include <iostream>
#include <cstdlib>
#include <cstdio>
#include "MyownStack.h"
using  namespace std;


const int Max = 1000;


int main()
{
    MyOwnStack <char> s;
    char c,e;


    cout<<"请输入中缀表达式,以#作为结束标志:\n";
    while(1){
        scanf("%c",&c);
        while(c >= '0'&&c <= '9'){
            cout<<c;
            scanf("%c",&c);
            if(c<'0'||c>'9')
                cout<<" ";
        }
         if('#' == c)
            break;
        if(')' == c)
        while(1){
                e=s.Pop();
                if('(' == e)
                    break;
                cout<<e<<" ";
        }
        if('+' == c || '-' == c){
            while(1){
                if(!s.stackLen()){
                s.Push(c);
                break;
                }
                e=s.Pop();
                if('(' == e){
                    s.Push(e);
                    s.Push(c);
                    break;
                   }
                cout<<e<<" ";
            }
        }
        if( '*' == c|| '/' == c|| '(' == c)
            s.Push(c);
    }
    while(s.stackLen()){
            e=s.Pop();
            cout<<e<<" ";
    }
    return 0;
}



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