NEW有什么具体的用法吗？

new 类型名T(初值列表)
int *point;
point = new int(2);

new 类型名T[下标表达式]
int *array;
array = new int[2];

记得要delete

class b{
public:
void display()
{
cout<<"hello class b"<<endl;
};
};

void main()
{
char *low = new char[sizeof(b)];
b *pb = new(low) b;
pb->display();
delete low;
}

: 'new' : function does not take 2 parameters

版主你写的东东应该是错的吧,,你怎么把c++和c的东西混用了哈