public object GetOldest(Person people1,Person people2)
{ if (people1.Age>people2.Age)
{
return people1;
}
else if (people1.Age>=people2.Age)
{
return people1;
}
else if (people1.Age<people2.Age)
{
return people2;
}
else if (people1.Age<=people2.Age)
{
return people2;
} return null;
}>>>问题二,在上面的比较中,如果我想同时返还两个值,该怎么写?return a people[] inteadpublic people[] GetOldest(Person people1,Person people2)(and make changes to the code)
>>>>问题三,如果问题二解决,能同时返回两个值,那么接收这两个值的语句怎么写?people[] plist = GetOldest(...);
{ if (people1.Age>people2.Age)
{
return people1;
}
else if (people1.Age>=people2.Age)
{
return people1;
}
else if (people1.Age<people2.Age)
{
return people2;
}
else if (people1.Age<=people2.Age)
{
return people2;
} return null;
}>>>问题二,在上面的比较中,如果我想同时返还两个值,该怎么写?return a people[] inteadpublic people[] GetOldest(Person people1,Person people2)(and make changes to the code)
>>>>问题三,如果问题二解决,能同时返回两个值,那么接收这两个值的语句怎么写?people[] plist = GetOldest(...);
{
return people2; }
这里加个 return XXX; // XXX为一个Person 实例问题二;似乎还没有这种功能,除非你把返回值设置为一个对象数组,然后把返回的两个实例放到一个数组中,然后返回数组,似乎只能这样了。问题三:接受一个数组
public ArrayList GetOldest(Person people1,Person people2)
{
ArrayList Persions=new ArrayList();
if (people1.Age>people2.Age)
{
Persions.Add(people1);
}
//这时候的情况只有 p1<=p2
else if(people1.Age==people2.Age )
{
Persions.Add(people1);
Persions.Add(People2);
}
else
{
{
Persions.Add(people2);
}
return Persions;
}
}
System.Collections.ArrayList result;
result=(System.Collections.ArrayList)GetOldest( p1,p2);
foreach(Person p in result)
{
//;;
}