private void insert_btn_Click(object sender, EventArgs e) { //向表中插入一条数据 System.DateTime currentTime=new System.DateTime(); currentTime=System.DateTime.Now; int userid = User.UserID; if (Business.AddContent(this.textBox1.Text, currentTime,userid) == true) { MessageBox.Show("添加笔记成功"); } else { MessageBox.Show("添加失败!"); } }