// var bodyList = workPart.Bodies.ToArray().ToList().ConvertAll(body => body.Tag).ToArray();//等價于        Part workPart = thesession.Parts.Work;//獲取當前工作部件        var bodyList= workPart.Bodies.ToArray();//var 動態的變量類型        Tag[] bodies = new Tag[bodyList.Length];//tag 一種變量類型 里面放整數值 tag已經被封住過        for (int i = 0; i < bodyList.Length; i++)//數組初始化        {            bodies[i] = bodyList[i].Tag;        }