private void button3_Click(object sender, EventArgs e) { execfile(comboBox1.Text, label4.Text); string contents = null; contents += DateTime.Now.ToString("yyyy.MM.dd-HH:mm:ss:"); contents += "对数据库" + comboBox1.Text + ",执行了" + label4.Text + "文件"; if (CreateDataBase.boolDataIsNullorNot(comboBox1.Text)) { MessageBox.Show("执行成功!"); contents += "执行成功。"; } else { MessageBox.Show("执行失败!"); contents += "执行失败。"; } ouputtext(contents); readtextfrompath(); }