get value in dictonary unity code example

Example 1: how to get the length list in c# unity

public List<Transform> items = new List<Transform>();

void Start()
{
    print(items.Count);
  
    items.Add(new Transform());
  
    print(items.Count);
}

//output\\

/// 0 

/// 1

Example 2: lua get next value in table

next(table)