队列

#include<iostream.h>
class que
{
private:
	char *ch;
	int maxsize;
	int count;
	int rear,front;
public:
	que(int size)
	{
		maxsize=size;
		ch=new char[maxsize];
		count=0;
		rear=0;
		front=0;
	}
	~que()
	{delete []ch;}
	void input()
	{
        char ch1;
		int n;
		
		while(1)
		{
            cout<<"请输入元素"<<endl;
	         	cin>>ch1;
			if(count==maxsize)
			{ cout<<"队列已满无法入列"<<endl;break;}
	        else
			{
				ch[rear]=ch1;
				rear=(++rear)%maxsize;
				count++;	 
			}
            cout<<"如果还想继续输入，请按1，否则按-1"<<endl;
            cin>>n;
		    if(n==-1)break;
		}
	}
	void output()
	{
             int m;
		while(1)
		{
			if(count==0)
			{cout<<"队列为空"<<endl;break;}
		    else
			{cout<<ch[front]<<endl;}
			front=(++front)%maxsize;
			count--;
			cout<<"如果继续输出请按1，否则按-1"<<endl;
            cin>>m;
			if(m==-1)break;
		}
	}
	int length()
	{
		return count;
	}
};
void main()
{
	cout<<"请输入队列的最大容量"<<endl;
	int size;
	cin>>size;
	que qu(size);
     qu.input();
	cout<<"队列长度为"<<qu.length()<<endl;
	cout<<"输出队列中的第一个元素为"<<endl;
	 qu.output();
	 qu.input();
	 cout<<"队列长度为"<<qu.length()<<endl;
	 cout<<"队列中的元素为"<<endl;
	 qu.output();

}