帮忙看看这个错误

[unk__ghost]

#include<iostream>
#include<stdlib.h>
using namespace std;
#define error 0
#define ok 1
#define Max 10
typedef int elemtype;
typedef int status;
class Queue
{
private:
elemtype *base;
int front;
int rear;
public:
Queue(const int max);
int Queuelength();
status enqueue(elemtype e);
status dequeue(elemtype &e);
~Queue();
};
Queue::Queue(const int max=Max)
{
cout<<"kai"<<endl;
base=(elemtype *)malloc(max*sizeof(elemtype));
front=rear=0;
}
int Queue::Queuelength()
{
return (rear-front+Max)%Max;
}
status Queue::enqueue(elemtype e)
{
if((rear+1)%Max==front) return error;
base[front]=e;
rear=(rear+1)%Max;
return ok;
}
status Queue::dequeue(elemtype &e)
{
if(rear==front)
return error;
e=base[front];
front=(front+1)%Max;
return ok;
}
Queue::~Queue()
{
cout<<"已经完蛋"<<endl;
}
int main()
{
Queue qu1;
int i,e;
for(i=0;i<10;i++)
{
cin>>e;
qu1.enqueue(e);
}
while(qu1.Queuelength!=0)
{
qu1.dequeue(e);
cout<<e;
}
return 0;
}
//c:\documents and settings\administrator\yuy.cpp(53) : error C2512: 'Queue' : no appropriate default constructor available
//请问一下这是什么错误？

[operatingtuzi]

class Queue
{
private:
elemtype *base;
int front;
int rear;
public:
Queue(const int max);

这里要求参数

int main()
{
Queue qu1;

这里没写参数

[AlanBruce]

#include<iostream>
#include<stdlib.h>
using namespace std;
#define error 0
#define ok 1
#define Max 10
typedef int elemtype;
typedef int status;
class Queue
{
private:
	elemtype *base;
	int front;
	int rear;
public:
	Queue(const int max);
	int Queuelength();
	status enqueue(elemtype e);
	status dequeue(elemtype &e);
	~Queue();
};
Queue::Queue(const int max=Max)
{
	cout<<"kai"<<endl;
	base=(elemtype *)malloc(max*sizeof(elemtype));
	front=rear=0;
}
int Queue::Queuelength()
{
	return (rear-front+Max)%Max;
}
status Queue::enqueue(elemtype e)
{
	if((rear+1)%Max==front) return error;
	base[front]=e;
	rear=(rear+1)%Max;
	return ok;
}
status Queue::dequeue(elemtype &e)
{
	if(rear==front)
		return error;
	e=base[front];
	front=(front+1)%Max;
	return ok;
}
Queue::~Queue()
{
	cout<<"已经完蛋"<<endl;
}
int main()
{
	Queue qu1;//你重载了构造函数，这里调用了默认构造函数，但是找不到你的默认构造函数的实现！！！
	int i,e;
	for(i=0;i<10;i++)
	{
		cin>>e;
		qu1.enqueue(e);
	}
	while(qu1.Queuelength!=0)
	{
		qu1.dequeue(e);
		cout<<e;
	}
	return 0;
}

[greatsong]

public:
Queue(const int max = Max);

Queue::Queue(const int max/*=Max*/)
{
cout<<"kai"<<endl;
base=(elemtype *)malloc(max*sizeof(elemtype));
front=rear=0;
}

[v2002750]

看不懂报错就查字典：没有合适的默认构造函数

[ba_wang_mao]

期待专家解答

[unk__ghost]

非常谢谢各位