无名对象的作用

#include<iostream>
#include<stdlib.h>

using namespace std;
class Test
{
	int m_data;
public:
	Test(int i=0):m_data(i)
	{
		cout<<"Test()"<<m_data<<endl;	
	}
	
	~Test(){
		cout<<"~Test()"<<m_data<<endl;
	}


};


int main(int argc,char**argv)
{
/*
    Test();
    cout<<"main()....."<<endl;
    Test *pTest=new Test(10);//application 1 堆对象传参
    delete pTest;
    pTest=NULL;
  */
    Test t=Test(10);  //application 2
    Test t1=(Test)100;  //application 2
    Test t2=10;//application 2  类型转换（优化）
    Test t3(10);//t2,t3构建是等价
    return 0;
}