我需要更改哪些代碼才能打印？

Question

我已經創建了所有方法，但是由於某種原因，當我運行此代碼時，什么也沒有打印出來。 沒有錯誤代碼，它編譯得很好，但它只是不打印任何東西。

這是我目前正在使用的驅動程序代碼。 `

public static void Main(string[] args)
        {
            
            Tree tree = new Tree(0);
            List<double>  list = new List<double>();
            for (int i= 0; i < list.Count; i++)
            {  double rain=   Driver.inchesRain(list);
                double rainMM= Driver.inchesToMM(rain);

                Console.WriteLine("Year " + i);
     
                Console.WriteLine("Rain this year: " + rain+" inches or "+rainMM +"mm");
                tree.grow(list[i]);
                tree.drawMe();
                Driver.fire(tree, list);

            }
        }

I have also tired to format it like this but this doesn't work either

 public static void Main(string[] args)
        {
            
            Tree tree = new Tree(0);
            List<double>  list = new List<double>();
            for (int i= 0; i < list.Count; i++)
            { 
                Console.WriteLine("Year " + i);
                Console.WriteLine("Rain this year: " +  Driver.inchesRain(list)+" inches or "+Driver.inchesToMM(rain) +"mm");
                tree.grow(list[i]);
                tree.drawMe();
                Driver.fire(tree, list);

            }
        }

`

Answer 1

您沒有用任何值填充list ，並且list.count等於零。 所以 for 循環運行零次

Answer 2

您只需要在列表中添加一些值：

public static void Main(string[] args)
{
    Tree tree = new Tree(0);
    List<double>  list = new List<double>() {1.2, 2.3, 5.5}; //values added here
    
    for (int i= 0; i < list.Count; i++)
    {  double rain=   Driver.inchesRain(list);
        double rainMM= Driver.inchesToMM(rain);

        Console.WriteLine("Year " + i);

        Console.WriteLine("Rain this year: " + rain+" inches or "+rainMM +"mm");
        tree.grow(list[i]);
        tree.drawMe();
        Driver.fire(tree, list);
    }
}