Event.control

Description

Control 键是否被按住？（只读）

如果按住了任何 Control 键，则返回 true。

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    void OnGUI() {
        Event e = Event.current;
        if (e.control)
            Debug.Log("Control was pressed.");
        
    }
}