一个关于指针的问题？

[dypzy]

struct fb
{
a int;
b int;
};

void add()
{
struct fb * fbadd;
fbadd.a=10; //这应怎样写？
}

[karma]

struct fb * fbadd = (struct fb*)malloc(sizeof (struct fb));
fbadd->a=10;

or

fb* fbadd = new fb;
fbadd->a=10;

[dypzy]

karma老兄：
多谢你了，