function OnGUI(){
    GUI.skin = myskin;
    if(GUILayout.Button("add_component",GUILayout.Height(40),GUI.Width(110))){
        obj.Addcomponent("xzhuang");
    }
    if(GUILayout.Button("del_component",GUILayout.Height(40),GUIlayout.Width(110))){
        var Script: Object = obj.GetComponent("xzhuang");
        Destroy(Script);
    }
}