请问为什么首先需要创建对象?后面这么多this是为了什么?
Ctl.BLL.vw_apply bll = new Ctl.BLL.vw_apply();
Ctl.Model.vw_apply model = bll.GetModel(ap_id);
this.Label1.Text = model.ap_id.ToString();
this.lblu_log.Text = model.u_log;
this.lblu_name.Text = model.u_name;
this.lblu_sex.Text = model.u_sex;
this.lblu_yuan.Text = model.y_name.ToString();