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winform提供皮

       private void Form1_Load(object sender, EventArgs e)
        {
            External ext = new External(this);
            webBrowser1.ObjectForScripting = ext;
        }

    }
    [System.Runtime.InteropServices.ComVisibleAttribute(

true)]
    public class External
    {
        Form form;
        public External(Form form)
        {
            this.form = form;
        }public void wappFullScreen(bool flag)
        {
            if (flag)
            {
                form.WindowState = FormWindowState.Maximized;
            }
            else
            {
                form.WindowState = FormWindowState.Normal;
            }

        }

    }

脚本可以调用得到

 window.external.wappFullScreen(flag);