Hashtable.Remove(object)

설명

Removes the element with the specified key from the Hashtable.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public Hashtable h;
    void Example() {
        h = new Hashtable();
        h.Add("1", "one");
        h.Add("2", "two");
        h.Remove("1");
        Debug.Log(h.Count);
    }
}