good in
(2004-09-02 11:01:09) Knuthocean(158139847)
(2004-08-31 22:34:14) Knuthocean(158139847)
大家说说这是什么意思呀?
(C++):
class Date{
int d,m,y;
public:
Date(int dd=0,int mm=0,int yy=0);
//...
};
Date::Date(int dd,int mm,int yy)
{
d=dd?dd:today.d;
m=mm?mm:today.m;
y=yy?yy:today.y;
}
这儿的如“d=dd"之类的不是恒等的吗?为什么后面还有? :算符呢?