unity中编辑器直接截屏代码

using UnityEngine;
using System.Collections;
using System.Windows.Forms;

public class screenshots : MonoBehaviour {

    public int I = 1;
    // Use this for initialization
    void Start () {

	}

	// Update is called once per frame
	void Update () {

	    if (Input.GetKeyDown(KeyCode.A))
	    {

	        Screen();

	    }

	}

    public void Screen()
    {
        SaveFileDialog saveLog = new SaveFileDialog();
        saveLog.InitialDirectory = "c:\\";
        saveLog.Filter = "Image File(*.JPG;*.BMP;*.PNG)|*.JPG;*.BMP;*.PNG|All files(*.*)|*.*";
        DialogResult result = saveLog.ShowDialog();
        if (result == DialogResult.OK)
        {
            string path = saveLog.FileName;
            UnityEngine.Application.CaptureScreenshot(path, I);

        }
    }
}

需要导入插件：System.Windows.Forms