【狼】unity3d 怎样在一定时间连按两下键

 1 public class DoubleClick : MonoBehaviour
 2 {
 3     float timelost = 0;
 4     void Update()
 5     {
 6         if (Input.GetKeyDown(KeyCode.D))
 7         {
 8             if (Time.time - timelost < 0.5f)///0.5秒之内按下有效
 9                 {
10                     /////////////
11                 }
12 
13             timelost = Time.time;
14         }
15     }
16 }