class-如何用構造函數來初始化？？？？

如何用構造函數來初始化？？？？

 #include<iostream>
using namespace std;
class Date
{
private:
    int year, month, day;
public:
    Date(int y, int m, int d)
    {
        year = y; month = m; day = d;
    }
};
class Time
{
private:
    int hour, minute, second;
public:
    Time(int hour1,int minute1,int second1)
    {
        hour = hour1; minute = minute1; second = second1;
    }
};
class DateTime
{
private:
    Date date; // 數據成員為Date類的對象
    Time time; // 數據成員為Time類的對象
public:
    DateTime(int y, int m, int d) : date(y, m, d):time(y,m,d)
    //這裡錯了怎麼弄
    {
        cout << this << "......" << endl;
    }
};
int main()
{
    DateTime dt(2014, 3, 24);
    return 0;
}

最佳回答：

DateTime(int y, int m, int d) : date(y, m, d):time(y,m,d)
第二個冒號改為逗號