Script for unity3d to recursively search for a node with a specific name from all child nodes of a node

public class SearchChild : MonoBehaviour
{
    static Dictionary<string, Transform> buffer = new Dictionary<string, Transform>();

    private static Transform FindChild(Transform FatherTrans, string childName)
    {
        if (childName == "")
            return null;

        Transform child = FatherTrans.Find(childName);
        if (child != null)
            return child;

        Transform go = null;
        for (int i = 0; i < FatherTrans.childCount; i++)
        {
            child = FatherTrans.GetChild(i);
            go = FindChild(child, childName);
            if (go != null)
                return go;
        }        
        return null;
    }


    public static Transform FindChildFast(Transform FatherTrans, string childName)
    {
        if (buffer.ContainsKey(childName)) 
            return buffer[childName];
        else {
            Transform child = FindChild(FatherTrans, childName);
            buffer.Add(childName, child);
            return child;
        }
    }

From the given Transform Start searching down for nodes with specific names , It also has cache function , For acceleration .