public OrSpec(AbsSpec l, AbsSpec r)
{
left = l;
right = r;
}
public AbsSpec Or(AbsSpec right)
{
return(new OrSpec(this, right));
}
public AndSpec(AbsSpec l, AbsSpec r)
{
left = l;
right = r;
}
///因为组合节点比较固定，可以父类依赖子类
public AbsSpec And(AbsSpec right)
{
return(new AndSpec(this, right));
}
