通过 for 循环添加值后列表返回 0 - c#

Question

采用这种方法后，我的列表计数 return 0，但它不应该。所有调试都是正确的，它们都不是 null 或其他东西。我正在使用统一。有谁知道问题出在哪里？

List<Coordinates> FillCoordinates()
{
    List<Coordinates> coordinatesList = new List<Coordinates>();
    Debug.Log(minLenght);
    Debug.Log(maxLenght);
    Debug.Log(heights.Count);
    for (int i = minLenght; i > maxLenght; i++)
    {
        for (int j = 0; j < heights.Count; j++)
        {
            coordinatesList.Add(new Coordinates(i, heights[j]));
        }
    }

    return coordinatesList;
}

坐标class:

public class Coordinates
{
    public int lenght;
    public float height;

    public Coordinates(int lenght_, float height_)
    {
        lenght = lenght_;
        height = height_;
    }
}

Answer 1

我猜这永远不会执行，更改 i < maxLenght

    for (int i = minLenght; i > maxLenght; i++)
    {
        for (int j = 0; j < heights.Count; j++)
        {
            coordinatesList.Add(new Coordinates(i, heights[j]));
        }
    }

Answer 2

@obl说的对，这个不会执行：

for (int i = minLenght; i > maxLenght; i++)

for 循环语句如下： "Start with i at minLength, and while i is greater than maxLength, run the loop and then increment i."

由于 i 不大于 maxLength，因此循环永远不会运行。

改成这样：

for (int i = minLenght; i < maxLenght; i++)

"Start with i at minLength, and while i is less than maxLength, run the loop and then increment i."

现在运行从 minLength 一直到 maxLength-1。

你是对的，当 i 等于 maxLength 时，这不会运行最后一次循环。要解决这个问题（如果它真的是你想要的），只需像这样调整它：

for (int i = minLenght; i <= maxLenght; i++)

"Start with i at minLength, and while i is less than or equal to maxLength, run the loop and then increment i."

通过 for 循环添加值后列表返回 0 - c#

List Returning 0 after Adding values through a for loop - c#

c#

list

unity5