protected void Button1_Click(object sender, EventArgs e) { if (TextBox3.Text.Trim() == "" || TextBox4.Text.Trim() == "" || TextBox5.Text.Trim() == "") { Response.Write("<script>alert('留言失败');</script>"); } else { FeedBack ra = new FeedBack(); ra.addfeedback(TextBox3.Text, TextBox4.Text, TextBox5.Text); CommTools.alert(this, "提交成功,感谢您的反馈!~"); } }