运算符重载之其它类型转化为自己

#include<iostream.h>
#include<stdio.h>
class aa
{public:
int j;
aa()
{}


};
class bb
{
public:
int i;
bb (aa i)
{this->i=2;
}


bb (int i)
{this->i=3;
}


};






int main()
{
aa a1;
bb b1=aa();
printf("%d\n",b1.i);


return 0;
}