class Test
{
    private int field1;
    private int field2;

    public Test()
    {
        field1 = // some code that needs
        field2 = // a lot of cpu time
    }

    private Test GetClone()
    {
        Test clone = // what do i have to write there to get Test instance
                     // without executing Test class' constructor that takes
                     // a lot of cpu time?
        clone.field1 = field1;
        clone.field2 = field2;
        return clone;
    }
}

代码几乎解释了自己.我试图解决这个问题并想出了这个：

private Test(bool qwerty) {}

private Test GetClone()
{
    Test clone = new Test(true);
    clone.field1 = field1;
    clone.field2 = field2;
    return clone;
}

我没有测试过,但我做得对吗？有没有更好的方法呢？